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features abc description/ordering information txs0102 2-bit bidirectional voltage-level translator for open-drain applications sces640 ? january 2007 available in the texas instruments nanostar? and nanofree? packages 1.65 v to 3.6 v on a port and 2.3 v to 5.5 v on b port (v cca v ccb ) v cc isolation feature ? if either v cc input is at gnd, both ports are in the high-impedance state i off supports partial-power-down mode operation latch-up performance exceeds 100 ma per jesd 78, class ii esd protection exceeds jesd 22 ? a port ? 2500-v human-body model (a114-b) ? 250-v machine model (a115-a) ? 1500-v charged-device model (c101) ? b port abc ? 8-kv human-body model (a114-b) abc ? 250-v machine model (a115-a) abc ? 1500-v charged-device model (c101) this two-bit noninverting translator uses two separate configurable power-supply rails. the a port is designed to track v cca . v cca accepts any supply voltage from 1.65 v to 3.6 v. the b port is designed to track v ccb . v cca must be less than or equal to v ccb . v ccb accepts any supply voltage from 2.3 v to 5.5 v. this allows for low-voltage bidirectional translation between any of the 1.8-v, 2.5-v, 3.3-v, and 5-v voltage nodes. when the output-enable (oe) input is low, all outputs are placed in the high-impedance state. to ensure the high-impedance state during power up or power down, oe should be tied to gnd through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. ordering information t a package (1) orderable part number top-side marking (2) nanostar? ? wcsp (dsbga) reel of 3000 txs0102yzpr 0.23-mm large bump ? yzp reel of 3000 txs0102dctr nfez_ _ _ ?40 c to 85 c ssop ? dct tube of 250 txs0102dctt nfez _ _ _ vssop ? dcu reel of 3000 txs0102dcur _ _ nfe (1) package drawings, standard packing quantities, thermal data, symbolization, and pcb design guidelines are available at www.ti.com/sc/package. (2) dct: the actual top-side marking has three additional characters that designate the year, month, and assembly/test site. dcu: the actual top-side marking has one additional character that designates the assembly/test site. yzp: the actual top-side marking has three preceding characters to denote year, month, and sequence code, and one following character to designate the assembly/test site. pin 1 identifier indicates solder-bump composition (1 = snpb, = pb-free). please be aware that an important notice concerning availability, standard warranty, and use in critical applications of texas instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. nanostar, nanofree are trademarks of texas instruments. production data information is current as of publication date. copyright ? 2007, texas instruments incorporated products conform to specifications per the terms of the texas instruments standard warranty. production processing does not necessarily include testing of all parameters. www.ti.com dct or dcu package (top view) 1 b1 8 2 7 v ccb 3 6 oe 4 5 b2 gnd v cca a2 a1 yzp package (bottom view) a2 5 4 a1 3 6 oe v cca 2 7 v ccb gnd 8 b1 1 b2 a1 b1 c1 d1 a2 b2 c2 d2
txs0102 2-bit bidirectional voltage-level translator for open-drain applications sces640 ? january 2007 pin description (dct and dcu packages) no. name function 1 b2 input/output b. referenced to v ccb . 2 gnd ground 3 v cca a-port supply voltage. 1.65 v v cca 3.6 v and v cca v ccb 4 a2 input/output a. referenced to v cca . 5 a1 input/output a. referenced to v cca . 3-state output mode enable. pull oe low to place all outputs in 3-state mode. 6 oe referenced to v cca . 7 v ccb b-port supply voltage. 2.3 v v ccb 5.5 v 8 b1 input/output b. referenced to v ccb . typical operating circuit 2 submit documentation feedback www.ti.com data data a1 b1 v cca v ccb oe 1.8 v system controller 3.3 v system 3.3 v 1.8 v a2 b2 0.1 f 0.1 f 1 f
absolute maximum ratings (1) txs0102 2-bit bidirectional voltage-level translator for open-drain applications sces640 ? january 2007 over recommended operating free-air temperature range (unless otherwise noted) min max unit v cca supply voltage range ?0.5 4.6 v v ccb supply voltage range ?0.5 6.5 v a port ?0.5 4.6 v i input voltage range (2) v b port ?0.5 6.5 a port ?0.5 4.6 voltage range applied to any output v o v in the high-impedance or power-off state (2) b port ?0.5 6.5 a port ?0.5 v cca + 0.5 v o voltage range applied to any output in the high or low state (2) (3) v b port ?0.5 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 dct package 220 q ja package thermal impedance (4) dcu package 227 c/w yzp package 102 t stg storage temperature range ?65 150 c (1) stresses beyond those listed under "absolute 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. (2) the input and output negative-voltage ratings may be exceeded if the input and output current ratings are observed. (3) the value of v cca and v ccb are provided in the recommended operating conditions table. (4) the package thermal impedance is calculated in accordance with jesd 51-7. 3 submit documentation feedback www.ti.com
recommended operating conditions (1) (2) txs0102 2-bit bidirectional voltage-level translator for open-drain applications sces640 ? january 2007 v cca v ccb min max unit v cca 1.65 3.6 supply voltage (3) v v ccb 2.3 5.5 1.65 v to 1.95 v v cci ? 0.2 v cci a-port i/os 2.3 v to 5.5 v 2.3 v to 3.6 v v cci ? 0.4 v cci v ih high-level input voltage v b-port i/os v cci ? 0.4 v cci 1.65 v to 3.6 v 2.3 v to 5.5 v oe input v cca 0.65 5.5 a-port i/os 0 0.15 v il low-level input voltage b-port i/os 1.65 v to 3.6 v 2.3 v to 5.5 v 0 0.15 v oe input 0 v cca 0.35 a-port i/os, push-pull 10 driving input transition d t/ d v b-port i/os, 1.65 v to 3.6 v 2.3 v to 5.5 v ns/v rise or fall rate push-pull 10 driving control input 10 t a operating free-air temperature ?40 85 c (1) v cci is the supply voltage associated with the input port. (2) v cco is the supply voltage associated with the output port. (3) v cca must be less than or equal to v ccb , and v cca must not exceed 3.6 v. 4 submit documentation feedback www.ti.com
electrical characteristics (1) (2) (3) timing requirements timing requirements txs0102 2-bit bidirectional voltage-level translator for open-drain applications sces640 ? january 2007 over recommended operating free-air temperature range (unless otherwise noted) t a = 25 c ?40 c to 85 c test parameter v cca v ccb unit conditions min typ max min max i oh = ?20 m a, v oha 1.65 v to 3.6 v 2.3 v to 5.5 v v cca 0.67 v v ib 3 v ccb ? 0.4 v i ol = 1 ma, v ola 1.65 v to 3.6 v 2.3 v to 5.5 v 0.4 v v ib 0.15 v i oh = ?20 m a, v ohb 1.65 v to 3.6 v 2.3 v to 5.5 v v ccb 0.67 v v ia 3 v cca ? 0.2 v i ol = 1 ma, v olb 1.65 v to 3.6 v 2.3 v to 5.5 v 0.4 v v ia 0.15 v i i oe 1.65 v to 5.5 v 1.65 v to 5.5 v 1 2 m a a port 0 v 0 to 5.5 v 1 2 m a i off b port 0 to 3.6 v 0 v 1 2 m a i oz a or b port 1.65 v to 5.5 v 2.3 v to 5.5 v 1 2 m a 1.65 v to v ccb 2.3 v to 5.5 v 2.4 v i = v o = open, i cca 3.6 v 0 v 2.2 m a i o = 0 0 v 5.5 v ?1 1.65 v to v ccb 2.3 v to 5.5 v 12 v i = v o = open, i ccb 3.6 v 0 v ?1 m a i o = 0 0 v 5.5 v 1 v i = v cci or gnd, i cca + i ccb 1.65 v to v ccb 2.3 v to 5.5 v 14.4 m a i o = 0 c i oe 3.3 v 3.3 v 2.5 3.5 pf a or b port 3.3 v 3.3 v 10 c io a port 5 6 pf b port 6 7.5 (1) v cci is the v cc associated with the input port. (2) v cco is the v cc associated with the output port. (3) v cca must be less than or equal to v ccb , and v cca must not exceed 3.6 v. over recommended operating free-air temperature range, v cca = 1.8 v 0.15 v (unless otherwise noted) v ccb = 2.5 v v cc = 3.3 v v cc = 5 v 0.2 v 0.3 v 0.5 v unit min max min max min max push-pull driving 21 22 24 data rate mbps open-drain driving 1 1 1 push-pull driving 47 45 41 t w pulse duration data inputs ns open-drain driving 500 500 500 over recommended operating free-air temperature range, v cca = 2.5 v 0.2 v (unless otherwise noted) v ccb = 2.5 v v cc = 3.3 v v cc = 5 v 0.2 v 0.3 v 0.5 v unit min max min max min max push-pull driving 20 22 24 data rate mbps open-drain driving 1 1 1 push-pull driving 50 45 41 t w pulse duration data inputs ns open-drain driving 500 500 500 5 submit documentation feedback www.ti.com
timing requirements switching characteristics txs0102 2-bit bidirectional voltage-level translator for open-drain applications sces640 ? january 2007 over recommended operating free-air temperature range, v cca = 3 v 0.3 v (unless otherwise noted) v cc = 3.3 v v cc = 5 v 0.3 v 0.5 v unit min max min max push-pull driving 23 24 data rate mbps open-drain driving 1 1 push-pull driving 43 41 t w pulse duration data inputs ns open-drain driving 500 500 over recommended operating free-air temperature range, v cca = 1.8 v 0.15 v (unless otherwise noted) v ccb = 2.5 v v ccb = 3.3 v v ccb = 5 v from to test 0.2 v 0.3 v 0.5 v parameter unit (input) (output) conditions min max min max min max push-pull driving 5.3 5.4 6.8 t phl open-drain driving 2.3 8.8 2.4 9.6 2.6 10 a b ns push-pull driving 6.8 7.1 7.5 t plh open-drain driving 45 260 36 208 27 198 push-pull driving 4.4 4.5 4.7 t phl open-drain driving 1.9 5.3 1.1 4.4 1.2 4 b a ns push-pull driving 5.3 4.5 0.5 t plh open-drain driving 45 175 36 140 27 102 t en oe a or b 200 200 200 ns t dis oe a or b 50 40 35 ns push-pull driving 3.2 9.5 2.3 9.3 2 7.6 t ra a-port rise time ns open-drain driving 38 165 30 132 22 95 push-pull driving 4 10.8 2.7 9.1 2.7 7.6 t rb b-port rise time ns open-drain driving 34 145 23 106 10 58 push-pull driving 2 5.9 1.9 6 1.7 13.3 t fa a-port fall time open-drain driving 4.4 6.9 4.3 6.4 4.2 6.1 ns push-pull driving 2.9 13.8 2.8 16.2 2.8 16.2 t fb b-port fall time open-drain driving 6.9 13.8 7.5 16.2 7 16.2 t sk(o) channel-to-channel skew 0.7 0.7 0.7 ns push-pull driving 21 22 24 max data rate mbps open-drain driving 1 1 1 6 submit documentation feedback www.ti.com
switching characteristics txs0102 2-bit bidirectional voltage-level translator for open-drain applications sces640 ? january 2007 over recommended operating free-air temperature range, v cca = 2.5 v 0.2 v (unless otherwise noted) v ccb = 2.5 v v ccb = 3.3 v v ccb = 5 v from to test 0.2 v 0.3 v 0.5 v parameter unit (input) (output) conditions min max min max min max push-pull driving 3.2 3.7 3.8 t phl open-drain driving 1.7 6.3 2 6 2.1 5.8 a b ns push-pull driving 3.5 4.1 4.4 t plh open-drain driving 43 250 36 206 27 190 push-pull driving 3 3.6 4.3 t phl open-drain driving 1.8 4.7 2.6 4.2 1.2 4 b a ns push-pull driving 2.5 1.6 1 t plh open-drain driving 44 170 37 140 27 103 t en oe a or b 200 200 200 ns t dis oe a or b 50 40 35 ns push-pull driving 2.8 7.4 2.6 6.6 1.8 5.6 t ra a-port rise time ns open-drain driving 34 149 28 121 24 89 push-pull driving 3.2 8.3 2.9 7.2 2.4 6.1 t rb b-port rise time ns open-drain driving 35 151 24 112 12 64 push-pull driving 1.9 5.7 1.9 5.5 1.8 5.3 t fa a-port fall time ns open-drain driving 4.4 6.9 4.3 6.2 4.2 5.8 push-pull driving 2.2 7.8 2.4 6.7 2.6 6.6 t fb b-port fall time ns open-drain driving 5.1 8.8 5.4 9.4 5.4 10.4 t sk(o) channel-to-channel skew 0.7 0.7 0.7 ns push-pull driving 20 22 24 max data rate mbps open-drain driving 1 1 1 7 submit documentation feedback www.ti.com
switching characteristics principles of operation applications architecture txs0102 2-bit bidirectional voltage-level translator for open-drain applications sces640 ? january 2007 over recommended operating free-air temperature range, v cca = 3.3 v 0.3 v (unless otherwise noted) v ccb = 3.3 v v ccb = 5 v from to test 0.3 v 0.5 v parameter unit (input) (output) conditions min max min max push-pull driving 2.4 3.1 t phl open-drain driving 1.3 4.2 1.4 4.6 a b ns push-pull driving 4.2 4.4 t plh open-drain driving 36 204 28 165 push-pull driving 2.5 3.3 t phl open-drain driving 1 124 1 97 b a ns push-pull driving 2.5 2.6 t plh open-drain driving 3 139 3 105 t en oe a or b 200 200 ns t dis oe a or b 40 35 ns push-pull driving 2.3 5.6 1.9 4.8 t ra a-port rise time ns open-drain driving 25 116 19 85 push-pull driving 2.5 6.4 2.1 7.4 t rb b-port rise time ns open-drain driving 26 116 14 72 push-pull driving 2 5.4 1.9 5 t fa a-port fall time ns open-drain driving 4.3 6.1 4.2 5.7 push-pull driving 2.3 7.4 2.4 7.6 t fb b-port fall time ns open-drain driving 5 7.6 4.8 8.3 t sk(o) channel-to-channel skew 0.7 0.7 ns push-pull driving 23 24 max data rate mbps open-drain driving 1 1 the txs0102 can be used in level-translation applications for interfacing devices or systems operating at different interface voltages with one another. the txs0102 is ideal for use in applications where an open-drain driver is connected to the data i/os. the txs0102 can also be used in applications where a push-pull driver is connected to the data i/os, but the txb0102 might be a better option for such push-pull applications. the txs0102 architecture (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. 8 submit documentation feedback www.ti.com
input driver requirements power up enable and disable pullup or pulldown resistors on i/o lines txs0102 2-bit bidirectional voltage-level translator for open-drain applications sces640 ? january 2007 principles of operation (continued) figure 1. architecture of a txs01xx cell each a-port i/o has an internal 10-k w pullup resistor to v cca , and each b-port i/o has an internal 10-k w pullup resistor to v ccb . the output one-shots detect rising edges on the a or b ports. during a rising edge, the one-shot turns on the pmos transistors (t1,t2) for a short duration, which speeds up the low-to-high transition. the fall time (t fa , t fb ) of a signal depends on the output impedance of the external device driving the data i/os of the txs0102. similarly, the t phl and max data rates also depend on the output impedance of the external driver. the values for t fa , t fb , t phl , and maximum data rates in the data sheet assume that the output impedance of the external driver is less than 50 w . during operation, ensure that v cca v ccb at all times. during power-up sequencing, v cca 3 v ccb does not damage the device, so any power supply can be ramped up first. the txs0102 has an oe input that is used to disable the device by setting oe low, which places all i/os in the hi-z state. the disable time (t dis ) indicates the delay between the time when oe goes low and when the outputs actually get disabled (hi-z). the enable time (t en ) indicates the amount of time the user must allow for the one-shot circuitry to become operational after oe is taken high. each a-port i/o has an internal 10-k w pullup resistor to v cca , and each b-port i/o has an internal 10-k w pullup resistor to v ccb . if a smaller value of pullup resistor is required, an external resistor must be added from the i/o to v cca or v ccb (in parallel with the internal 10-k w resistors). 9 submit documentation feedback www.ti.com v ccb b v cca v ccb gate bias one - shot one - shot 10k 10k t1 t2 a
parameter measurement information txs0102 2-bit bidirectional voltage-level translator for open-drain applications sces640 ? january 2007 figure 2. load circuit and voltage waveforms 10 submit documentation feedback www.ti.com v oh v ol from output under t est load circuit for enable/disable time measurement s1 2 v cco open 50 k t plh t phl output control (low-level enabling) output w aveform 1 s1 at 2 v cco (see note b) output w aveform 2 s1 at gnd (see note b) t pzl t pzh t plz t phz v cca /2 v cca /2 v cci 0 v v cco /2 v oh v ol 0 v 0.1 v cco v cco /2 0.9 v cco v cco /2 0 v v cci 0 v v cci /2 v cci /2 t w input v cca v cco volt age w aveforms propaga tion dela y times volt age w aveforms pulse dura tion volt age w aveforms enable and disable times output input t pzl /t plz t phz /t pzh 2 v cco open test s1 notes: a. c l includes probe and jig capacitance. b. w aveform 1 is for an output with internal conditions such that the output is low , except when disabled by the output control. waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control. c. all input pulses are supplied by generators having the following characteristics: prr 10 mhz, z o = 50 , dv/dt 1 v/ns. d. the outputs are measured one at a time, with one transition per measurement. e. t plz and t phz are the same as t dis . f. t pzl and t pzh are the same as t en . g. t plh and t phl are the same as t pd . h. v cci is the v cc associated with the input port. i. v cco is the v cc associated with the output port. j. all parameters and waveforms are not applicable to all devices. 50 k 1 m 15 pf 15 pf dat a ra te, pulse dura tion, prop aga tion dela y, output rise and f all time measurement using a push-pull driver v cco v cci dut in out 1 m 15 pf dat a ra te, pulse dura tion, prop aga tion dela y, output rise and f all time measurement using an open-drain driver v cco v cci dut in out v cco /2 v cco /2 0.9 v cco v cco /2 t r 0.1 v cco t f
packaging information orderable device status (1) package type package drawing pins package qty eco plan (2) lead/ball finish msl peak temp (3) txs0102dcur active us8 dcu 8 3000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim (1) the marketing status values are defined as follows: active: product device recommended for new designs. lifebuy: ti has announced that the device will be discontinued, and a lifetime-buy period is in effect. nrnd: not recommended for new designs. device is in production to support existing customers, but ti does not recommend using this part in a new design. preview: device has been announced but is not in production. samples may or may not be available. obsolete: ti has discontinued the production of the device. (2) eco plan - the planned eco-friendly classification: pb-free (rohs), pb-free (rohs exempt), or green (rohs & no sb/br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. tbd: the pb-free/green conversion plan has not been defined. pb-free (rohs): ti's terms "lead-free" or "pb-free" mean semiconductor products that are compatible with the current rohs requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. where designed to be soldered at high temperatures, ti pb-free products are suitable for use in specified lead-free processes. pb-free (rohs exempt): this component has a rohs exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. the component is otherwise considered pb-free (rohs compatible) as defined above. green (rohs & no sb/br): ti defines "green" to mean pb-free (rohs compatible), and free of bromine (br) and antimony (sb) based flame retardants (br or sb do not exceed 0.1% by weight in homogeneous material) (3) msl, peak temp. -- the moisture sensitivity level rating according to the jedec industry standard classifications, and peak solder temperature. important information and disclaimer: the information provided on this page represents ti's knowledge and belief as of the date that it is provided. ti bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. efforts are underway to better integrate information from third parties. ti has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. ti and ti suppliers consider certain information to be proprietary, and thus cas numbers and other limited information may not be available for release. in no event shall ti's liability arising out of such information exceed the total purchase price of the ti part(s) at issue in this document sold by ti to customer on an annual basis. package option addendum www.ti.com 5-feb-2007 addendum-page 1

important notice texas instruments incorporated and its subsidiaries (ti) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. cu stomers should obtain the latest relevant information before placing orders and should verify that such info rmation is current and complete. all products are sold subject to ti?s terms and conditions of sale supplied at the time of order acknowledgment. ti warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with ti?s standard warranty. testing and othe r quality control techniques are used to the extent ti deems necessary to support this warranty. except where mandated by governm ent requirements, testing of all parameters of each product is not necessarily performed. ti assumes no liability for applications assistance or customer product design. customers are responsible for their products and applications using ti component s. to minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. ti does not warrant or represent that any license, either express or implie d, is granted under any ti patent right, copyright, mask work right, or other ti intellectual property right relating to any combination, machine, or process in which ti products or services are us ed. information published by ti regarding third-party products or services does not consti tute a license from ti to use such products or services or a warranty or endorsement thereof. use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from ti under the pat ents or other intellectual property of ti. reproduction of information in ti data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, lim itations, and notices. reproduction of this information with alteration is an unfair and deceptive business practice. ti is not responsible or liable for such altered documentation. resale of ti products or services with statements diffe rent from or beyond the parameters stated by ti for that product or service voids all express and any imp lied warranties for the associated ti product or service and is an unfair and deceptive business practice. ti is not responsible or liable for any such statements. following are urls where you can obtain information on other texas instruments products and application solutions: products applications amplifiers amplifier.ti.c om audio www.ti.com/audio data converters dataconverter.ti.co m automotive www.ti.com/automotive dsp dsp.ti.com broadband www.ti.com/broadband interface interface.ti.com digital control www.ti.com/digitalcontrol logic logic.ti.com military www.ti.com/military power mgmt power.ti.com optical networking www.ti.com/opticalnetwork microcontrollers microcontroller.ti.com security www.ti.com/security low power wireless www.ti.com/lpw telephony www.ti.com/telephony video & imaging www.ti.com/video wireless www.ti.com/wireless mailing address: texas instruments post office box 6553 03 dallas, texas 75265 copyright ? 2007, texas instruments incorporated

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