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general description the max3453e?ax3456e 15kv esd-protected usb- compliant transceivers interface low-voltage asics with usb devices. the devices fully comply with usb 1.1 and usb 2.0 when operating at full (12mbps) and low (1.5mbps) speeds. the max3453e?ax3456e operate with v l as low as +1.65v, ensuring compatibility with low-voltage asics. the max3453e?ax3456e feature a logic-selectable suspend mode that reduces current consumption to less than 40?. integrated ?5kv esd protection pro- tects the usb d+ and d- bidirectional bus connections. the max3453e supports only full-speed (12mbps) operation. the max3453e/max3454e feature an inter- nal 1.5k ? usb pullup resistor and an enumeration func- tion that allows devices to logically disconnect while plugged in. the max3453e/max3455e provide a push- pull bus-detect (bd) output that asserts high when v bus > +4.0v. the max3453e?ax3456e operate over the extended temperature range (-40? to +85?) and are available in 14-pin tssop and 16-pin (3mm x 3mm) thin qfn packages. applications pdas pc peripherals cellular telephones data cradles mp3 players features 15kv esd protection on d+ and d- usb 1.1 and usb 2.0 (low-speed and full-speed)- compliant transceivers combined vp and vm inputs/outputs +1.65v to +3.6v v l logic supply input for interfacing with low-voltage asics enumerate input function (max3453e/max3454e) powered from li+ battery as low as +3.1v (max3454e/max3456e) v bus detection (max3453e/max3455e) internal pullup resistor (max3453e/max3454e) no power-supply sequencing required max3453e?ax3456e ?5kv esd-protected usb transceivers ________________________________________________________________ maxim integrated products 1 19-2924; rev 4; 2/06 for pricing, delivery, and ordering information, please contact maxim/dallas direct! at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. ordering information part temp range pin-pkg pkg code max3453e eud -40 o c to +85 o c 14 tssop u14-1 max3453eete -40 o c to +85 o c 16 thin qfn t1633-4 max3454e eud -40 o c to +85 o c 14 tssop u14-1 max3454eete -40 o c to +85 o c 16 thin qfn t1633-4 max3455e eud -40 o c to +85 o c 14 tssop u14-1 max3455eete -40 o c to +85 o c 16 thin qfn t1633-4 max3456e eud -40 o c to +85 o c 14 tssop u14-1 max3456eete -40 o c to +85 o c 16 thin qfn t1633-4 typical operating circuit appears at end of data sheet. pin configurations appear at end of data sheet. selector guide part v bus power- supply voltage (v) v l power- supply voltage (v) internal pullup resistor v bus level detect enumerate usb speed supported 15kv esd protection max3453e 4.0 to 5.5 1.65 to 3.6 yes yes yes full yes max3454e 3.0 to 5.5 1.65 to 3.6 yes no yes low/full yes max3455e 4.0 to 5.5 1.65 to 3.6 no yes no low/full yes max3456e 3.0 to 5.5 1.65 to 3.6 no no no low/full yes
max3453e?ax3456e ?5kv esd-protected usb transceivers 2 _______________________________________________________________________________________ absolute maximum ratings stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. dc electrical characteristics (v bus = +4.0v to +5.5v or v trm = +3.0v to +3.6v, v l = +1.65v to +3.6v, t a = t min to t max , unless otherwise noted. typical values are at v bus = +5.0v, v l = +2.5v, and t a = +25 c.) (note 1) parameter sym b o l conditions min typ max units supply inputs (v bus , v trm , v l ) regulated supply voltage output v trm internal regulator 3.0 3.3 3.6 v operating supply current i vbus full-speed transmitting and receiving at 12mbps, c l = 50pf on d+ and d- (note 2) 10 ma operating v l supply current i vl full-speed transmitting and receiving at 12mbps (note 2) 2.5 ma full-speed idle: v d+ > 2.7v, v d- < 0.3v 250 350 full-speed idle and se0 supply current i vbus ( idle ) se0: v d+ < 0.3v, v d- < 0.3v 250 350 a max3453e/max3455e 15 static v l supply current i vl ( static ) full-speed idle, se0, or suspend mode max3454e/max3456e 5 a max3453e (enum = low), max3455e 40 suspend supply current i vbus ( susp ) vm = vp = open, sus = oe = high max3454e (enum = low), max3456e 35 a disable mode supply current i vbus ( dis ) v l = gnd or open 20 a max3453e/max3455e 20 sharing mode v l supply current i vl ( sharing ) v bus = gnd or open, oe = low, vp = low or high, vm = low or high, sus = high max3454e/max3456e 5 a d+/d- sharing mode load current i d_ ( sharing ) v bus = gnd or open, v d_ = 0 or +5.5v 20 a d+/d- disable mode load current i d_(dis) v l = gnd or open, v d_ = 0 or +5.5v 5 a v bus , v l , d+, d- to gnd.......................................-0.3v to +6.0v v trm to gnd ............................................-0.3v to (v bus + 0.3v) vp, vm, sus, enum, spd, rcv, oe , bd to gnd ................................-0.3v to (v l + 0.3v) current (into any pin) ........................................................ 15ma short-circuit current (d+ and d-)................................... 150ma continuous power dissipation (t a = +70 c) 14-pin tssop (derate 9.1mw/ c above +70 c) .........727mw 16-pin thin qfn (derate 14.7mw/ c above +70 c)....1176mw operating temperature range ...........................-40 c to +85 c junction temperature ......................................................+150 c storage temperature range .............................-65 c to +150 c lead temperature (soldering, 10s) .................................+300 c
max3453e?ax3456e ?5kv esd-protected usb transceivers _______________________________________________________________________________________ 3 dc electrical characteristics (continued) (v bus = +4.0v to +5.5v or v trm = +3.0v to +3.6v, v l = +1.65v to +3.6v, t a = t min to t max , unless otherwise noted. typical values are at v bus = +5.0v, v l = +2.5v, and t a = +25 c.) (note 1) parameter sym b o l conditions min typ max units max3453e/max3455e, supply lost 3.6 max3453e/max3455e, supply present 4.0 max3454e/max3456e, supply lost 0.8 usb power-supply detection threshold v th_vbus max3454e/max3456e, supply present (note 3) 3.6 v max3453e/max3455e 40 usb power-supply detection hysteresis v hyst_vbus max3454e/max3456e 75 mv v l power-supply detection threshold v th_vl 0.85 v digital inputs/outputs (vp, vm, rcv, sus, oe , spd, bd, enum) input-voltage low v il vm, vp, sus, spd, enum, oe oe analog inputs/outputs (d+, d-) differential input sensitivity v id |v d+ - v d- | 0.2 v differential common-mode voltage v cm includes v id range 0.8 2.5 v single-ended input low voltage v ilse 0.8 v single-ended input high voltage v ihse 2.0 v hysteresis v hyst 250 mv output-voltage low v old r l = 1.5k ? to +3.6v 0.3 v output-voltage high v ohd r l = 15k ? to gnd 2.8 3.6 v off-state leakage current i lz -1 +1 a transceiver capacitance c ind measured from d_ to gnd 20 pf driver output impedance z drv steady-state drive 3.5 15.5 ? input impedance z in driver off 10 m ? internal pullup resistance r pullup i load = 500a (max3453e/max3454e) (note 4) 1.425 1.575 k ? esd protection (d+, d-) human body model 15 kv iec 61000-4-2 contact discharge 8kv
max3453e?ax3456e ?5kv esd-protected usb transceivers 4 _______________________________________________________________________________________ note 1: parameters are 100% production tested at +25 c, unless otherwise noted. limits over temperature are guaranteed by design. note 2: guaranteed by design, not production tested. note 3: production tested to +2.7v for v l < +3.0v. note 4: including external 27 ? series resistor. timing characteristics (v bus = +4.0v to +5.5v or v trm = +3.0v to +3.6v, v l = +1.65v to +3.6v, t a = t min to t max , unless otherwise noted. typical values are at v bus = +5v, v l = +2.5v, and t a = +25 c.) (note 1) parameter symbol conditions min typ max units driver characteristics (full-speed mode, c l = 50pf) rise time t fr 10% to 90% of |v ohd - v old |, figures 1, 6 4 20 ns fall time t ff 90% to 10% of |v ohd - v old |, figures 1, 6 4 20 ns rise/fall-time matching (note 2) t fr / t ff excluding the first transition from idle state, figures 1, 6 90 110 % output-signal crossover voltage (note 2) v crs_f excluding the first transition from idle state, figures 2, 6 1.3 2.0 v t plh_drv low-to-high transition, figures 2, 6 18 driver propagation delay t phl_drv high-to-low transition, figures 2, 6 18 ns t phz_drv high-to-off transition, figure 3 20 ns driver disable delay t plz_drv low-to-off transition, figure 3 20 ns t pzh_drv off-to-high transition, figure 3 20 ns driver enable delay t pzl_drv off-to-low transition, figure 3 20 ns driver characteristics (low-speed mode, c l = 200pf to 600pf, max3454e/max3455e/max3456e) rise time t lr 10% to 90% of |v ohd - v old |, figures 1, 6 75 300 ns fall time t lf 90% to 10% of |v ohd - v old |, figures 1, 6 75 300 ns rise/fall-time matching t lr / t lf excluding the first transition from idle state, figures 1, 6 80 125 % output-signal crossover voltage v crs_l excluding the first transition from idle state, figures 2, 6 1.3 2.0 v receiver characteristics (c l = 15pf) t plh_rcv low-to-high transition, figures 4, 6 22 differential receiver propagation delay t phl_rcv high-to-low transition, figures 4, 6 22 ns t plh_se low-to-high transition, figures 4, 6 12 single-ended receiver propagation delay t phl_se high-to-low transition, figures 4, 6 12 ns t phz_se high-to-off transition, figure 5 15 single-ended receiver disable delay t plz_se low-to-off transition, figure 5 15 ns t pzh_se off-to-high transition, figure 5 15 single-ended receiver enable delay t pzl_se off-to-low transition, figure 5 15 ns
max3453e?ax3456e ?5kv esd-protected usb transceivers _______________________________________________________________________________________ 5 single-ended receiver propagation delay vs. v l max3453e-56e toc01 v l (v) propagation delay (ns) 3.4 3.2 1.8 2.0 2.2 2.6 2.8 2.4 3.0 1 2 3 4 5 6 7 8 0 1.6 3.6 c l = 15pf t a = +25 c t a = +85 c t a = -40 c rise-/fall-time matching (full speed) max3453e-56e toc02 20ns/div d+/d- 1v/div c l = 50pf max3453e-56e toc03 100ns/div rise-/fall-time matching (low speed) c l = 400pf d+/d- 1v/div typical operating characteristics (v bus = +5.0v, v l = +3.3v, t a = +25 c, unless otherwise noted.) max3453e-56e toc04 20ns/div oe, vp, vm timing c l = 15pf vp 2v/div vm 2v/div oe 5v/div supply current vs. d+/d- capacitance max3453e-56e toc05 d+/d- capacitance (pf) supply current (ma) 350 300 200 250 100 150 50 2 4 6 8 10 12 14 16 18 20 22 24 0 0 400 spd = gnd, f in = 750khz spd = v l , f in = 6mhz logic supply current vs. d+/d- capacitance max3453e-56e toc06 d+/d- capacitance (pf) logic supply current ( a) 350 300 200 250 100 150 50 50 100 150 200 250 300 350 400 450 500 0 0400 spd = gnd, f in = 750khz spd = v l , f in = 6mhz
max3453e?ax3456e ?5kv esd-protected usb transceivers 6 _______________________________________________________________________________________ pin max3454e/ max3455e/ max3456e max3453e tssop thin qfn tssop thin qfn name function 1 15 1 15 v l digital i/o connections logic supply. connect a +1.65v to +3.6v supply to v l . bypass v l to gnd with a 0.1f ceramic capacitor. 21 spd speed selector input. connect spd to gnd to select the low- speed data rate (1.5mbps). connect spd to v l to select the full- speed data rate (12mbps). the max3453e only supports full- speed operation. 3232rcv d i ffer enti al recei ver o utp ut. rc v r esp ond s to the d i ffer enti al i np uts on d + and d - ( see tab l es 3, 4) . rc v asser ts l ow i f s u s = v l . 4343vp receiver output/driver input. vp functions as a receiver output when oe = v l . vp duplicates d+ when receiving. vp functions as a driver input when oe = gnd. 5454vm receiver output/driver input. vm functions as a receiver output when oe = v l . vm duplicates d- when receiving. vm functions as a driver input when oe = gnd. 6, 13* 5, 8, 13*, 16 6 5, 8, 16 n.c. no connection. not internally connected. *pin 13 is no connection for max3456e only. 7676gndgr ound 8787sus suspend input. drive sus low for normal operation. drive sus high to put the max3453e max3456e into suspend mode. rcv asserts low in suspend mode. vp and vm remain active in suspend mode. 9999 oe output enable. drive oe to gnd to enable the transmitter outputs. drive oe to v l to disable the transmitter outputs. oe also controls the i/o direction of vp and vm (see tables 3, 4). 10 10 10 10 d- usb input/output. for oe = gnd, d- functions as a usb output, with vm providing the input signal. for oe = v l , d- functions as a usb input, with vm functioning as a single-ended receiver output. connect a 1.5k ? resistor from d- to v trm for low-speed (1.5mbps) operation (max3455e/max3456e). drive enum to v l to connect the internal 1.5k ? resistor from d- to v trm for low-speed (max3454e, spd = gnd) operation. pin description
max3453e?ax3456e ?5kv esd-protected usb transceivers _______________________________________________________________________________________ 7 pin max3454e/ max3455e/ max3456e max3453e tssop thin qfn tssop thin qfn name function 11 11 11 11 d+ usb input/output. for oe = gnd, d+ functions as a usb output, with vp providing the input signal. for oe = v l , d+ functions as a usb input, with vp functioning as a single-ended receiver output. connect a 1.5k ? resistor from d+ to v trm for full-speed (12mbps) operation (max3455e/max3456e). drive enum to v l to connect the internal 1.5k ? resistor (max3453e/ max3454e) from d+ to v trm for full-speed (max3454e, spd = v l ) operation. 12 12 12 12 v trm internal regulator output. v trm provides a regulated +3.3v output. bypass v trm to gnd with a 1f (min) ceramic capacitor as close to the device as possible. v trm normally derives power from v bus . alternatively, drive v trm directly with a +3.3v 10% supply (max3454e/max3456e). v trm provides power to internal circuitry and provides the pullup voltage for an external usb pullup resistor (max3455e/max3456e). do not use v trm to power external circuitry. 13 (max3455e only) 13 (max3455e only) 13 13 bd bus-detection output (max3453e/max3455e). the push-pull bd output asserts low and the device enters sharing mode if v bus < +3.6v. bd asserts high if v bus > +4.0v. 13 (max3454e only) 13 (max3454e only) 21 enum enumerate function selection input (max3453e/max3454e). drive enum to v l to connect the internal 1.5k ? resistor between v trm and d+ or d-, depending on the state of spd. drive enum to gnd to disconnect the internal 1.5k ? resistor. for spd = v l , the 1.5k ? resistor connects to d+. for spd = gnd, the 1.5k ? resistor connects to d-. for the max3453e, the resistor only connects to d+. 14 14 14 14 v bus usb power-supply input. connect a +4.0v to +5.5v power supply to v bus . v bus provides power to the internal linear regulator. bypass v bus to gnd with a 0.1f ceramic capacitor as close to the device as possible. connect v bus and v trm together when powering the max3454e/max3456e with an external power supply (+3.3v 10%). pin description (continued)
max3453e?ax3456e ?5kv esd-protected usb transceivers 8 _______________________________________________________________________________________ level translator sus rcv d+ d- v th_vbus vp vm oe v l to internal circuitry to internal circuitry ldo regulator v trm v bus gnd bd v trm enum max3453e 1.5k ? functional diagram
max3453e?ax3456e ?5kv esd-protected usb transceivers _______________________________________________________________________________________ 9 level translator sus rcv d+ d- vp spd vm oe v l to internal circuitry to internal circuitry max3454e only ldo regulator v trm v bus gnd bd v trm enum spd control logic max3454e max3456e 1.5k ? max3455e only v th_vbus functional diagram (continued)
max3453e?ax3456e ?5kv esd-protected usb transceivers 10 ______________________________________________________________________________________ detailed description the max3453e max3456e usb-compliant transceivers convert single-ended or differential logic-level signals to usb signals, and usb signals to single-ended or differ- ential logic-level signals. the max3453e fully complies with full-speed (12mbps) operation under usb specifica- tion 2.0. the max3454e max3456e fully comply with usb specification 1.1, and full-speed (12mbps) and low- speed (1.5mbps) operation under usb specification 2.0. the max3453e max3456e operate with v l as low as +1.65v, ensuring compatibility with low-voltage asics. the max3453e max3456e derive power from the usb host (v bus ) or from a single-cell li+ battery (max3454e/max3456e) connected to v bus or from a +3.3v regulated supply connected to v bus and v trm . the max3453e max3456e meet the physical layer specifications for logic-level supply voltages (v l ) from +1.65v to +3.6v. integrated 15kv esd protection safe- guards the d+ and d- usb i/o ports. the max3453e/max3454e feature an enumerate func- tion providing an internal 1.5k ? pullup resistor from d+ (max3453e/max3454e) or d- (max3454e only) to v trm . the enumerate function disconnects the 1.5k ? pullup resistor, allowing the max3453e/max3454e to simulate a bus disconnect while powered and connect- ed to the usb cable. the max3453e/max3455e fea- ture a bus-detect output (bd) that asserts high if v bus > +4v. bd asserts low if v bus < +3.6v. the max3455e/max3456e require external pullup resistors from either d+ or d- to v trm to utilize the appropriate bus speed. the max3456e is pin-for-pin compatible with the micrel mic2550a. applications information power-supply configurations normal operating mode connect v l and v bus to system power supplies (table 1). connect v l to a +1.65v to +3.6v supply. connect v bus to a +4.0v to +5.5v supply. alternatively, the max3454e/ max3456e can derive power from a single li+ battery. connect the battery to v bus . additionally, the max3454e/max3456e can derive power from a +3.3v 10% voltage regulator. connect v bus and v trm to an external +3.3v voltage regulator. v bus no longer consumes current to power the internal linear regulator in this configuration. table 1. power-supply configurations v bus (v) v trm (v) v l (v) configuration notes 4.0 to 5.5 3.0 to 3.6 output 1.65 to 3.6 normal mode 3.1 to 4.5 3.0 to 3.6 output 1.65 to 3.6 battery supply max3454e/max3456e 3.0 to 3.6 3.0 to 3.6 input 1.65 to 3.6 voltage regulator supply max3454e/max3456e gnd or floating high-z 1.65 to 3.6 sharing mode table 2 3.0 to 5.5 high-z gnd or floating disable mode table 2 * high impedance or low. ** high or low. inputs/outputs disable mode sharing mode v bus /v trm +3.0v to +5.5v / high impedance floating or connected to gnd (max3453e/max3454e/max3456e) / high impedance < 3.6v (max3453e/max3455e) / high impedance v l floating or connected to gnd 1.65v to 3.6v input d+ and d- high impedance high impedance high impedance for oe = low vp and vm invalid* high for oe = high rcv invalid* undefined** spd (max3454e max3456e), sus, oe , enum (max3453e/max3454e) high impedance high impedance bd (max3453e/max3455e) invalid* low table 2. disable-mode and sharing-mode connections
max3453e?ax3456e ?5kv esd-protected usb transceivers ______________________________________________________________________________________ 11 disable mode connect v bus to a system power supply and leave v l unconnected or connect to gnd. d+ and d- enter a tri- state mode and v bus (or v bus and v trm ) consumes less than 20a of supply current. d+ and d- withstand external signals up to +5.5v in disable mode (table 2). sharing mode connect v l to a system power supply and leave v bus (or v bus and v trm ) unconnected or connect to gnd. d+ and d- enter a tri-state mode, allowing other circuitry to share the usb d+ and d- lines, and v l consumes less than 20a of supply current. d+ and d- withstand external signals up to +5.5v in sharing mode (table 2). device control oe oe controls the direction of communication. drive oe low to transfer data from the logic side to the usb side. for oe = low, vp and vm serve as differential driver inputs to the usb transmitter. drive oe high to transfer data from the usb side to the logic side. for oe = high, vp and vm serve as single- ended receiver outputs from the usb inputs (d+ and d-). rcv serves as a differential receiver out- put, regardless of the state of oe . enum (max3453e/max3454e) the max3453e/max3454e feature an enumerate func- tion that allows software control of usb enumeration. usb protocol requires a 1.5k ? pullup resistor to d+ or d- to indicate the transmission speed to the host (see the spd section). the max3453e/max3454e provide an internal 1.5k ? pullup resistor. disconnect the pullup resistor from the circuit to simulate the removal of a device from the usb. drive enum low to disconnect the internal pullup resistor. drive enum high to connect the internal pullup resistor. the spd state (max3454e only) determines whether the pullup resistor connects to d+ or d-. for enum = high, the internal pullup resis- tor connects to d+ when spd = v l (full speed) or to d- when spd = gnd (low speed). the max3453e only supports full-speed operation; therefore, the pullup resistor only connects to d+ or is disconnected. figure 1. rise and fall times v ohd v old 90% 10% 90% 10% t fr , t lr t ff , t lf table 3a. transmit truth table ( oe = 0, sus = 0) inputs outputs vp vm d+ d- rcv output state 0000x se0 0 1 0 1 0 logic 0 1 0 1 0 1 logic 1 1 1 1 1 x undefined x = undefined. table 3b. transmit truth table ( oe = 0, sus = 1) inputs outputs vp vm d+ d- rcv output state 00000 se0 0 1 0 1 0 logic 0 1 0 1 0 0 logic 1 1 1 1 1 0 undefined table 4a. receive truth table ( oe = 1 and sus = 0) inputs outputs d+ d- vp vm rcv output state 0000x se0 01010 logic 0 10101 logic 1 1 1 1 1 x undefined x = undefined. table 4b. receive truth table ( oe = 1 and sus = 1) inputs outputs d+ d- vp vm rcv output state 00000 se0 01010 logic 0 10100 logic 1 11110 undefined
max3453e?ax3456e ?5kv esd-protected usb transceivers 12 ______________________________________________________________________________________ spd (max3454e/max3455e/max3456e) spd sets the transceiver speed. connect spd to gnd to select the low-speed data rate (1.5mbps). connect spd to v l to select the full-speed data rate (12mbps). the max3454e provides an internal pullup resistor for selecting the bus speed. the max3455e and max3456e require an external pullup resistor to d+ or d- to set the bus speed. connect the 1.5k ? resistor between d+ and v trm to set the full-speed (12mbps) data rate, or connect the 1.5k ? resistor between d- and v trm to set the low-speed (1.5mbps) data rate. sus the sus state determines whether the max3453e max3456e operate in normal mode or in suspend mode. connect sus to gnd to enable normal opera- tion. drive sus high to enable suspend mode. rcv asserts low and vp and vm remain active in suspend mode (tables 3 and 4). supply current decreases in suspend mode (see the electrical characteristics ). bd (max3453e/max3455e) the push-pull bus detect (bd) output monitors v bus and asserts high if v bus is greater than +4.0v. bd asserts low if v bus is less than +3.6v and the max3453e/max3455e enters sharing mode (table 2). v trm an internal linear regulator generates the v trm voltage (+3.3v, typ). v trm derives power from v bus (see the power-supply configurations section). v trm powers the internal portions of the usb circuitry and provides the pullup voltage for an external usb pullup resistor (max3455e/max3456e). bypass v trm to gnd with a 1f ceramic capacitor as close to the device as possible. do not use v trm to provide power to external circuitry. d+ and d- d+ and d- serve as bidirectional bus connections and are esd protected to 15kv (human body model). for oe = low, d+ and d- serve as transmitter outputs. for oe = high, d+ and d- serve as receiver inputs. v bus for most applications, v bus connects to the v bus termi- nal on the usb connector (see the power-supply configurations section). v bus can also connect to an external supply as low as +3.1v (max3454e/max3456e). drive v bus low to enable sharing mode. bypass v bus to gnd with a 0.1f ceramic capacitor as close to the device as possible. external components external resistors proper usb operation requires two external resistors, each 27 ? 1%, 1/8w (or greater). install one resistor in series between d+ of the max3453e max3456e and d+ on the usb connector. install the other resistor in series between d- of the max3453e max3456e and d- on the usb connector (see typical operating circuit ). the max3455e/max3456e require an external 1.5k ? pullup resistor between v trm and d+ or d- to set the bus speed. external capacitors the max3453e max3456e require three external capacitors for proper operation. bypass v l to gnd with a 0.1f ceramic capacitor. bypass v bus to gnd with a 0.1f ceramic capacitor. bypass v trm to gnd with a 1f (min) ceramic capacitor. install all capacitors as close to the device as possible. data transfer transmitting data to the usb the max3453e max3456e transmit data to the usb differentially on d+ and d-. vp and vm serve as differ- ential input signals to the driver (tables 3a and 3b). receiving data from the usb to receive data from the usb, drive oe high and sus low. differential data received by d+ and d- appears as a differential logic signal at rcv. single-ended receivers on d+ and d- drive vp and vm, respectively (tables 4a and 4b). figure 2. timing of vp and vm to d+ and d- vm vp d- d+ t plh_drv t phl_drv v crs_f , v crs_l vp and vm rise/fall times < 4ns
max3453e?ax3456e ?5kv esd-protected usb transceivers ______________________________________________________________________________________ 13 figure 3. enable and disable timing, driver oe d+/d- t plz_drv t pzl_drv t phz_drv t pzh_drv vp/vm connected to gnd, d+/d- connected to pullup vp/vm connected to v l , d+/d- connected to pulldown oe d+/d- figure 4. timing of d+ and d- to rcv, vm, and vp +3v 0v rcv, vm, and vp v l d+/d- t plh_rcv , t plh_se t phl_rcv , t phl_se input rise/fall time < 4ns figure 5. enable and disable timing, receiver oe vp/vm vp/vm t plz_se t pzl_se t phz_se t pzh_se d+/d- connected to gnd, vp/vm connected to pullup d+/d- connected to +3v, vp/vm connected to pulldown oe figure 6. test circuits max3453e max3456e rcv, vm, and vp test point (a) load for rcv, vm, and vp max3453e max3456e d+ and d- 27 ? 15k ? c l c l test point (b) load for d+/d-
max3453e?ax3456e ?5kv esd-protected usb transceivers 14 ______________________________________________________________________________________ esd protection d+ and d- possess extra protection against static elec- tricity to protect the devices up to 15kv. the esd structures withstand high esd in all operating modes: normal operation, suspend mode, and powered down. d+ and d- provide protection to the following limits: ? 15kv using the human body model ? 8kv using the contact discharge method specified in iec 61000-4-2 esd test conditions esd performance depends on a variety of conditions. contact maxim for a reliability report that documents test setup, test methodology, and test results. human body model figure 7 shows the human body model and figure 8 shows the current waveform generated when dis- charged into a low impedance. this model consists of a 100pf capacitor charged to the esd voltage of inter- est, which then discharges into the test device through a 1.5k ? resistor. iec 61000-4-2 the iec 61000-4-2 standard covers esd testing and performance of finished equipment. it does not specifi- cally refer to integrated circuits. the major difference between tests done using the human body model and iec 61000-4-2 is a higher peak current in iec 61000-4- 2, due to lower series resistance. hence, the esd with- stand voltage measured to iec 61000-4-2 generally is lower than that measured using the human body model. figure 9 shows the iec 61000-4-2 model. the contact discharge method connects the probe to the device before the probe is charged. machine model the machine model for esd tests all connections using a 200pf storage capacitor and zero discharge resis- tance. its objective is to emulate the stress caused by contact that occurs with handling and assembly during manufacturing. all pins require this protection during manufacturing, not just inputs and outputs. after pc board assembly, the machine model is less relevant to i/o ports. chip information transistor count: 873 process: bicmos figure 8. human body model current waveform i p 100% 90% 36.8% t rl time t dl current waveform peak-to-peak ringing (not drawn to scale) i r 10% 0 0 amperes figure 7. human body esd test models charge-current- limit resistor discharge resistance storage capacitor c s 100pf r c 1m ? r d 1.5k ? high- voltage dc source device under test figure 9. iec 61000-4-2 esd test model charge-current- limit resistor discharge resistance storage capacitor c s 150pf r c 50m ? to 100m ? r d 330 ? high- voltage dc source device under test
max3453e?ax3456e ?5kv esd-protected usb transceivers ______________________________________________________________________________________ 15 typical operating circuits max3453e max3454e +1.65v to +3.6v v l(i/o) v l asic bd* vp vm rcv spd** pc usb power d+ d- 15k ? 15k ? gnd 0.1 f 0.1 f gnd gnd usb cable d- 27 ? 1% 27 ? 1% d+ v bus v trm sus enum oe 1 f *max3453e only. **max3454e only. max3455e max3456e* +1.65v to +3.6v v l(i/o) v l asic vp vm rcv bd** spd pc usb power d+ d- 15k ? 15k ? gnd 0.1 f 0.1 f gnd gnd usb cable d- 27 ? 1% 27 ? 1% d+ v bus v trm sus oe 1 f *pin compatible with micrel mic2550a. **max3455e only. ***connect to d+ for full-speed operation. connect to d- for low-speed operation. 1.5k ? ***
max3453e?ax3456e ?5kv esd-protected usb transceivers 16 ______________________________________________________________________________________ 9 top view tssop 14 1 v l v bus 13 2 spd n.c. (enum*) (bd**) 12 3 rcv v trm 11 4 vp d+ 10 5 vm d- 8 7 gnd sus 3mm x 3mm thin qfn 16 1 2 3 4 12 11 10 9 15 14 13 5678 n.c. v l v bus n.c. (enum*) (bd**) v trm d+ d- oe rcv vp ***exposed paddle vm n.c. *max3454e only. **max3455e only. ***connect exposed paddle to gnd or leave floating. sus n.c. spd max3454e max3455e max3456e max3454e max3455e max3456e gnd 6 n.c. oe 3mm x 3mm thin qfn 16 1 2 3 4 12 11 10 9 15 14 13 5678 n.c. v l v bus bd v trm d+ d- oe rcv vp ***exposed paddle vm n.c. sus n.c. enum max3453e gnd v bus bd v trm d+ vp rcv enum v l d- oe sus gnd n.c. vm 9 tssop 14 1 13 2 12 3 11 4 10 5 8 7 max3453e 6 pin configurations
max3453e?ax3456e ?5kv esd-protected usb transceivers ______________________________________________________________________________________ 17 12x16l qfn thin.eps 0.10 c 0.08 c 0.10 m c a b d d/2 e/2 e a1 a2 a e2 e2/2 l k e (nd - 1) x e (ne - 1) x e d2 d2/2 b l e l c l e c l l c l c package outline 21-0136 2 1 g 8, 12, 16l thin qfn, 3x3x0.8mm marking aaaa package information (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .)
max3453e?ax3456e ?5kv esd-protected usb transceivers 18 ______________________________________________________________________________________ exposed pad variations 1.10 t1633-1 0.95 codes pkg. t1233-1 min. 0.95 nom. 1.10 d2 1.25 1.10 0.95 1.25 nom. 1.10 max. 1.25 min. 0.95 max. 1.25 e2 12 n k a2 0.25 ne a1 nd 0 0.20 ref - - 3 0.02 3 0.05 l e e 0.45 2.90 b d a 0.20 2.90 0.70 0.50 bsc. 0.55 3.00 0.65 3.10 0.25 3.00 0.75 0.30 3.10 0.80 16 0.20 ref 0.25 - 0 4 0.02 4 - 0.05 0.50 bsc. 0.30 2.90 0.40 3.00 0.20 2.90 0.70 0.25 3.00 0.75 3.10 0.50 0.80 3.10 0.30 pkg ref. min. 12l 3x3 nom. max. nom. 16l 3x3 min. max. 0.35 x 45 ? pin id jedec weed-1 0.35 x 45 ? weed-2 t1233-3 1.10 1.25 0.95 1.10 0.35 x 45 ? 1.25 weed-1 0.95 t1633f-3 0.65 t1633-4 0.95 0.80 0.95 0.65 0.80 1.10 1.25 0.95 1.10 0.225 x 45 ? 0.95 weed-2 0.35 x 45 ? 1.25 weed-2 t1633-2 0.95 1.10 1.25 0.95 1.10 0.35 x 45 ? 1.25 weed-2 no down bonds allowed yes no yes n/a no package outline 21-0136 2 2 g 8, 12, 16l thin qfn, 3x3x0.8mm yes weed-1 1.25 1.10 0.95 0.35 x 45 ? 1.25 1.10 0.95 t1233-4 t1633fh-3 0.65 0.80 0.95 0.225 x 45 ? 0.65 0.80 0.95 weed-2 n/a notes: 1. dimensioning & tolerancing conform to asme y14.5m-1994. 2. all dimensions are in millimeters. angles are in degrees. 3. n is the total number of terminals. 4. the terminal #1 identifier and terminal numbering convention shall conform to jesd 95-1 spp-012. details of terminal #1 identifier are optional, but must be located within the zone indicated. the terminal #1 identifier may be either a mold or marked feature. 5. dimension b applies to metallized terminal and is measured between 0.20 mm and 0.25 mm from terminal tip. 6. nd and ne refer to the number of terminals on each d and e side respectively. 7. depopulation is possible in a symmetrical fashion. 8. coplanarity applies to the exposed heat sink slug as well as the terminals. 9. drawing conforms to jedec mo220 revision c. 10. marking is for package orientation reference only. 11. number of leads shown are for reference only. 0.25 0.30 0.35 2 0.25 0 0.20 ref -- 0.02 0.05 0.35 8 2 0.55 0.75 2.90 2.90 3.00 3.10 0.65 bsc. 3.00 3.10 8l 3x3 min. 0.70 0.75 0.80 nom. max. tq833-1 1.25 0.25 0.70 0.35 x 45 ? no weec 1.25 0.70 0.25 package information (continued) (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .)
max3453e?ax3456e ?5kv esd-protected usb transceivers maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ____________________ 19 ? 2006 maxim integrated products is a registered trademark of maxim integrated products. tssop4.40mm.eps package outline, tssop 4.40mm body 21-0066 1 1 g package information (continued) (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .) revision history pages changed at rev1: 1, 14, 19, slide

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