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________________________________________________________________________ http://www.union-ic.com rev.07 sep.2013 1/13 UM3302h/UM3302 q 2-bit bidirectional voltage-level tr anslator with auto direction sensing and 15kv esd prot ection UM3302h csp8 1.900.90 UM3302q qfn8 1.401.20 general description the UM3302, a esd protected level translator, provi des the level shifting necessary to allow data transfer in multi-voltage system. this 2-cha nnel noninverting translator uses two separate configurable power-supply rails. th e a port is designed to track v cca . v cca accepts any supply voltage from 1.2v to 3.6v. the b port is designed to track v ccb . v ccb accepts any supply voltage from 1.65v to 5.5v. this allows for universal lo w-voltage bidirectional translation between any of the 1.2v, 1.5v, 1.8v, 2.5v, 3.3v, and 5v volta ge nodes. both i/o ports are auto-sensing; thus, no direction pin is required, making it ideal for data transfer between low-voltage asics /plds and higher voltage systems. the UM3302 operates at a guaranteed data rate of 20mbps over the entire specified operating voltage range. within specific voltage domain s, higher data rates are up to 100mbps. when the output-enable (oe) input is low, all out puts are placed in the high-impedance state. the UM3302 is designed so that the oe input circuit is designed to track v cca . to ensure the high-impedance state during power up or power down, oe should be tied to gnd through a pull down resistor; the minimum va lue of the resistor is determined by the current-sourcing capability of the driver. the UM3302h is a dual channel level transl ator available in 1.90mm0.90mm csp8 bump package while UM3302q is available in 1.40mm1.20mm qfn8 package. applications features ? low-voltage asic level translation ? cell-phone cradles ? portable pos systems ? portable communication devices ? low-cost serial interfaces ? cell-phones ? gps ? telecommunications equipment ? 1.2v to 3.6v on a port and 1.65v to 5.5v on b port (v cca v ccb ) ? v cc isolation feature ? if either v cc input is at gnd, all outputs are in the high-impedance state ? oe input circuit referenced to v cca ? low power consumption ? latch-up performance exceeds 100ma ? 15kv esd protection on b ports pin configurations top view (bottom view) m: month code UM3302h csp8 1.900.90
________________________________________________________________________ http://www.union-ic.com rev.07 sep.2013 2/13 UM3302h/UM3302 q pin description pin no pin name function UM3302h UM3302q 1 6 b2 input/output b. referenced to v ccb 2 4 gnd ground 3 1 v cca a-port supply voltage. 1.2v v cca 3.6v and v cca v ccb 4 3 a2 input/output a. referenced to v cc a 5 2 a1 input/output a. referenced to v cc a 6 5 oe 3-state output enable. pull oe low to place all outputs in 3-state mode. referenced to v cca 7 8 v ccb b-port supply voltage. 1.65v v ccb 5.5v 8 7 b1 input/output b. referenced to v ccb ordering information part number packaging type marking code shipping qty UM3302h csp8 1.900.90 ebb 3000pcs/7inch tape & reel UM3302q qfn8 1.401.20 q (top view) m: month code UM3302q qfn8 1.401.20
________________________________________________________________________ http://www.union-ic.com rev.07 sep.2013 3/13 UM3302h/UM3302 q absolute maximum ratings (note 1) over operating free-air temperature range (unless otherwise noted) symbol parameter value unit v cca supply voltage range -0.5 to +4.5 v v ccb supply voltage range -0.5 to +6.5 v v i input voltage range (note 2) a port -0.5 to +4.5 v b port -0.5 to +6.5 v o voltage range applied to any output in the high-impedance or power-off state (note 2) a port -0.5 to +4.5 v b port -0.5 to +6.5 v o voltage range applied to any output in the high or low state (note 2,3) a port -0.5 to ( v cca +0.5) v b port -0.5 to ( v ccb +0.5) i ik input clamp current v i 0 -50 ma i ok output clamp current v o 0 -50 ma i o continuous output current 50 ma continuous current through v cca , v ccb , or gnd 100 ma t op operating temperature range -40 to +85 c t stg storage temperature range -65 to +150 c note 1: stresses beyond those listed under "a bsolute maximum ratings" may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. note 2: the input and output negative-voltage ra tings may be exceeded if the input and output current ratings are observed. note 3: the value of v cca and v ccb are provided in the recommended operating conditions table. recommended operating conditions (note 1, 2) symbol parameter v cca v ccb min max unit v cca supply voltage 1.2 3.6 v v ccb 1.65 5.5 v v ih high level input voltage data inputs 1.2v to 3.6v 1.65v to 5.5v v cci 0.65 (note3) v cci v oe input 1.2v to 3.6v 1.65v to 5.5v v cca 0.65 5.5 v v il low level input voltage data inputs 1.2v to 3.6v 1.65v to 5.5v 0 v cci 0.35 v oe input 1.2v to 3.6v 1.65v to 5.5v 0 v cca 0.35 v v o voltage range applied to any output in the high-impedance or power off state a port 1.2v to 3.6v 1.65v to 5.5v 0 3.6 v b port 0 5.5 t/ v input transition rise or fall time a-port inputs 1.2v to 3.6v 1.65v to 5.5v 40 ns/v b-port inputs 1.2v to 3.6v 1.65v to 1.95v 40 4.5v to 5.5v 30 note1. the a and b sides of an unused data i/o pair must be held in the same state, i.e., both at v cci or both at gnd. note2. v cca must be less than or equal to v ccb and must not exceed 3.6 v. note3. v cci is the supply voltage associated with the input port.
________________________________________________________________________ http://www.union-ic.com rev.07 sep.2013 4/13 UM3302h/UM3302 q electrical characteristics (note 1, 2) over recommended operating free-air temp erature range (unless otherwise noted) parameter test conditions v cca v ccb t a =25 -40 to 85 unit typ max min max v oha i oh =-20 a 1.2v 1.1 v 1.4v to 3.6v v cca -0.4 v ola i ol =20 a 1.2v 0.9 v 1.4v to 3.6v 0.4 v ohb i oh =-20 a 1.65v to 5.5v v ccb -0.4 v v olb i ol =20 a 1.65v to 5.5v 0.4 v i i oe v i =v cci or gnd 1.2v to 3.6v 1.65v to 5.5v 1 2 a i off a port v i or v o =0 to 3.6v 0v 0v to 5.5v 1 2 a b port v i or v o =0 to 5.5v 0v to 3.6v 0v 1 2 i oz a or b port oe=gnd 1.2v to 3.6v 1.65v to 5.5v 1 2 a i cca v i =v cci or gnd i o =0 1.2v 1.65v to 5.5v 0.06 a 1.4v to 3.6v 1.65v to 5.5v 3 3.6v 0v 2 0v 5.5v -2 i ccb v i =v cci or gnd i o =0 1.2v 1.65v to 5.5v 3.4 a 1.4v to 3.6v 1.65v to 5.5v 5 3.6v 0v -2 0v 5.5v 2 i cca +i ccb v i =v cci or gnd i o =0 1.2v 1.65v to 5.5v 3.5 a 1.4v to 3.6v 1.65v to 5.5v 8 i ccza v i =v cci or gnd i o =0, oe=gnd 1.2v 1.65v to 5.5v 0.05 a 1.4v to 3.6v 1.65v to 5.5v 3 i cczb v i =v cci or gnd i o =0, oe=gnd 1.2v 1.65v to 5.5v 3.3 a 1.4v to 3.6v 1.65v to 5.5v 5 c i oe 1.2v to 3.6v 1.65v to 5.5v 2.5 3 pf c io a port 1.2v to 3.6v 1.65v to 5.5v 5 6 pf b port 11 14 note1. v cci is the supply voltage associated with the input port. note2. v cco is the supply voltage associated with the output port.
________________________________________________________________________ http://www.union-ic.com rev.07 sep.2013 5/13 UM3302h/UM3302 q switching characteristics t a =+25c, v cca = 1.2v parameter from (input) to (output) v ccb =1.8v v ccb =2.5v v ccb =3.3v v ccb =5v unit typ typ typ typ t pd a b 7 6 5.3 5.5 ns b a 7.5 6.5 6 6 t en oe a 1 1 1 1 s b 1 1 1 1 t dis oe a 18 16 14 14 ns b 19 17 15 15 t ra, t fa a port rise and fall time 5 5 5 5 ns t rb, t fb b port rise and fall time 2.5 1.5 1.2 1 ns t sk ( o ) channel-to-channel 0.5 0.5 0.5 1.5 ns max data rate 20 20 20 20 mbps switching characteristics over recommended operating free-air temperature range, v cca =1.5v0.1v (unless otherwise noted) parameter from (input) to (output) v ccb =1.8v 0.15v v ccb =2.5v 0.2v v ccb =3.3v 0.3v v ccb =5v 0.5v unit min max min max min max min max t pd a b 2 15 1.2 11 1.1 10 1 10 ns b a 1 15 0.9 12 0.5 12 0.3 13 t en oe a 1 1 1 1 s b 1 1 1 1 t dis oe a 6 30 5.5 28 5.5 25 5.5 23 ns b 5.5 30 5 25 5 20 5 20 t ra, t fa a port rise and fall time 1.5 5.0 1.5 5.0 1.5 5.0 1.5 5.0 ns t rb, t fb b port rise and fall time 0.9 4.5 0.6 3.5 0.5 3 0.4 2.5 ns t sk(o) channel-to-channel 0.5 0.5 0.5 0.5 ns max data rate 40 40 40 40 mbps
________________________________________________________________________ http://www.union-ic.com rev.07 sep.2013 6/13 UM3302h/UM3302 q switching characteristics over recommended operating free-air temperature range, v cca =1.8v0.15v (unless otherwise noted) parameter from (input) to (output) v ccb =1.8v 0.15v v ccb =2.5v 0.2v v ccb =3.3v 0.3v v ccb =5v 0.5v unit min max min max min max min max t pd a b 1.6 10 1.4 9 1.3 7 1.2 6.5 ns b a 1.5 12 1.3 8.5 1 8 0.9 8 t en oe a 1 1 1 1 s b 1 1 1 1 t dis oe a 6 34 5.5 23 5 20 5 17.6 ns b 5.5 33 4.5 22 4.2 16.8 4.4 16.3 t ra, t fa a port rise and fall time 1 4.2 1.1 4.0 1.1 4.0 1.1 4.0 ns t rb, t fb b port rise and fall time 0.9 4 0.6 3.2 0.5 2.8 0.4 2.8 ns t sk ( o ) channel-to-channel 0.5 0.5 0.5 0.5 ns max data rate 60 60 60 60 mbps switching characteristics over recommended operating free-air temperature range, v cca =2.5v0.2v (unless otherwise noted) parameter from (input) to (output) v ccb =2.5v 0.2v v ccb =3.3v 0.3v v ccb =5v 0.5v unit min max min max min max t pd a b 1.1 6.5 1 5.2 0.9 5 ns b a 1.2 6.6 1.1 5.1 0.9 4.4 t en oe a 1 1 1 s b 1 1 1 t dis oe a 5.0 23 4.6 15.2 4.6 13 ns b 4.4 22 3.8 16 3.9 13.3 t ra , t fa a port rise and fall time 0.8 3 0.8 3 0.8 3 ns t rb , t fb b port rise and fall time 0.7 2.7 0.5 2.8 0.4 2.7 ns t sk ( o ) channel-to-channel 0.5 0.5 0.5 ns max data rate 100 100 100 mbps
________________________________________________________________________ http://www.union-ic.com rev.07 sep.2013 7/13 UM3302h/UM3302 q switching characteristics over recommended operating free-air temperature range, v cca =3.3v0.3v (unless otherwise noted) parameter from (input) to (output) v ccb =3.3v 0.3v v ccb =5v 0.5v unit min max min max t pd a b 0.9 5 0.8 4 ns b a 1 5.1 0.9 4 t en oe a 1 1 s b 1 1 t dis oe a 5 15 4 13 ns b 4 16 3.4 13.8 t ra , t fa a port rise and fall time 0.7 2.5 0.7 2.5 ns t rb , t fb b port rise and fall time 0.5 2.1 0.4 2.8 ns t sk ( o ) channel-to-channel 0.5 0.5 ns max data rate 100 100 mbps operating characteristics t a =+25c pamameter test conditions v ccb unit 5v 1.8v 1.8v 1.8v 2.5v 5v 3.3v to 5v v cca 1.2v 1.2v 1.5v 1.8v 2.5v 2.5v 3.3v typ typ typ typ typ typ typ c pda a-port input b-port output c l =0, f=10mhz, t r =t f =1ns, oe= v cca 9 10 10 10 10 10 10 pf b-port input a-port output 12 11 11 11 11 11 11 c pdb a-port input b-port output 35 28 28 29 3.0 30 30 b-port input a-port output 27 19 19 19 20 21 23 c pda a-port input b-port output c l =0, f=10mhz, t r =t f =1ns, oe= gnd 0.01 0.01 0.01 0.01 0.01 0.01 0.01 pf b-port input a-port output 0.01 0.01 0.01 0.01 0.01 0.01 0.01 c pdb a-port input b-port output 0.01 0.01 0.01 0.01 0.01 0.01 0.03 b-port input a-port output 0.01 0.01 0.01 0.01 0.01 0.01 0.05
________________________________________________________________________ http://www.union-ic.com rev.07 sep.2013 8/13 UM3302h/UM3302 q applications information UM3302 esd protected level translator provides leve l shifting necessary to allow data transfer in a multi-voltage system. externally applied voltages, v cca and v ccb set the logic levels on either side of device. a low voltage signal present on v cca side of the device appears as a high voltage logic signal on the v ccb side of the device, and vice-versa. block diagram the UM3302 (block diagram see figure 1) does not require a direction-control signal to control the direction of data flow from a to b or from b to a. in a dc state, the output drivers of the UM3302 can maintain a high or low, but are designed to be weak, so that they can be overdriven by an external driver when data on the bus starts flowing the opposite direction. the output one shot detects rising or falling edges on the a or b ports. during a rising edge, the one shot turns on the pmos transistors (t1, t3) for a short duration, which speeds up the low-to-high transition. similarly, during a falling edge, the one shot turns on the nmos transistors (t2, t4) for a short duration, which speeds up the high-to-low transition. figure 1 block diagram of UM3302 i/o cell
________________________________________________________________________ http://www.union-ic.com rev.07 sep.2013 9/13 UM3302h/UM3302 q input driver requirements typical i in vs v in characteristics of the UM3302 are shown in figure 2. for proper operation, the device driving the data i/os of the UM3302 must have drive strength of at least 2 ma. a: v t is the input threshold voltage of the UM3302 (typical v cci /2) b: v d is the supply voltage of the external driver. figure 2 typical i in vs v in curve power up during operation, ensure that v cca v ccb at all times. during power-up sequencing, v cca v ccb does not damage the device, so any power s upply can be ramped up first. the UM3302 has circuitry that disables all output ports when either v cc is switched off (v cca/b = 0 v). enable and disable the UM3302 has an oe input that is used to di sable the device by setting oe = low, which places all i/os in the high-impedance (hi-z) state. th e disable time (tdis) indicates the delay between when oe goes low and when the outputs actually get disabled (hi-z). the enable time (ten) indicates the amount of time the user must allow for the one-shot circuitry to become operational after oe is taken high. pullup or pulldown resistors on i/o lines the UM3302 is designed to drive capacitive loads of up to 50pf. the output drivers of the UM3302h have low dc drive strength. if pullup or pulldown resistors are connected externally to the data i/os, their values must be kept higher than 50k ? to ensure that they do not contend with the output drivers of the UM3302. for the same reason, the UM3302 should not be used in applications such as i 2 c or 1-wire where an open-drain driver is connected on the bidirectional data i/o.
________________________________________________________________________ http://www.union-ic.com rev.07 sep.2013 10/13 UM3302h/UM3302 q typical operating circuit v cca v ccb oe a1 a2 b1 b2 gnd data data gnd data data gnd 1.8-v system controller 3.3-v system 1.8v 0.1 f0.1 f 3.3v figure 3 typical operating circuit test circuits figure 4 load circuits and voltage waveforms
________________________________________________________________________ http://www.union-ic.com rev.07 sep.2013 11/13 UM3302h/UM3302 q package information UM3302h: csp8 1.900.90 outline drawing d b e l d1 a a1 dimensions symbol millimeters inch min max min max a 0.65 0.026 a1 0.21 0.24 0.008 0.010 d 1.85 1.95 0.074 0.078 e 0.85 0.95 0.034 0.038 d1 1.50bsc 0.06bsc e1 0.50bsc 0.020bsc e 0.50bsc 0.02bsc b 0.27 0.32 0.011 0.013 c 0.25bsc 0.01bsc l 0.25bsc 0.01bsc land pattern notes: 1. bump is lead free sn/ag/cu. 2. unit: mm; 3. non-solder mask defined copper landing pad. 4. laser mark on silicon die back; back-lapped. tape and reel orientation
________________________________________________________________________ http://www.union-ic.com rev.07 sep.2013 12/13 UM3302h/UM3302 q UM3302q: qfn8 1.401.20 outline drawing dimensions symbol millimeters inch min max min max a 0.45 0.55 0.018 0.022 a1 0.00 0.05 0.000 0.002 a3 0.13ref 0.005ref d 1.40bsc 0.056bsc e 1.20bsc 0.048bsc e 0.40bsc 0.016bsc b 0.15 0.25 0.006 0.010 l 0.20 0.40 0.008 0.016 l2 0.30 0.50 0.012 0.020 land pattern notes: 1. compound dimension: 1.401.20 ; 2. unit: mm; 3. general tolerance 0.05mm unless otherwise specified; 4. the layout is just for reference. tape and reel orientation
________________________________________________________________________ http://www.union-ic.com rev.07 sep.2013 13/13 UM3302h/UM3302 q important notice the information in this document has been ca refully reviewed and is believed to be accurate. nonetheless, this document is subjec t to change without notice. union assumes no responsibility for any inaccuracies that may be contained in this document, and makes no commitment to update or to keep current the contained information, or to notify a person or organization of any update. union rese rves the right to make changes, at any time, in order to improve reliability, function or design and to attempt to supply the best product possible. union semiconductor, inc add: 2f, no. 3, lane 647 songtao road, shanghai 201203 tel: 021-51093966 fax: 021-51026018 website: www.union-ic.com

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