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TC74VCX16543FT 2007-10-19 1 toshiba cmos digital integrat ed circuit silicon monolithic TC74VCX16543FT low-voltage 16-bit registered transceiver with 3.6-v tolerant inputs and outputs the TC74VCX16543FT is a high performance cmos 16-bit registered transceiver. designed for use in 1.8-v, 2.5-v or 3.3-v systems, it achieves high-speed operation while maintaining the cmos low power dissipation. it is also designed with overvo ltage tolerant inputs and outputs up to 3.6 v. the TC74VCX16543FT can be used as two 8-bit transceivers or one 16-bit transceiver. separate latch-enable (leab or leba) and output-enable (oeab or oeba) inputs are provided for each register to permit independent cont rol in either direction of data flow. the a-to-b enable (ceab) input mu st be low in order to enter data from a or to output data from b. if ceab is lo w and leab is low, the a-to-b latches are tr ansparent; a subsequent low-to-high transition of leab puts the a latches in the storage mode. with ceab and oeab both low, the 3-state b outputs are active and reflect the data present at the output of the a latches. data flow from b to a is similar bu t requires using th e ceba, leba, and oeab inputs. when the oe input is high, the outputs are in a high-impedance state. this device is designed to be used with 3-state memory addr ess drivers, etc. all inputs are equipped with protection circuits against static discharge. features (note) ? low-voltage operation: v cc = 1.8 to 3.6 v ? high-speed operation: t pd = 3.5 ns (max) (v cc = 3.0 to 3.6 v) : t pd = 4.0 ns (max) (v cc = 2.3 to 2.7 v) : t pd = 8.0 ns (max) (v cc = 1.8 v) ? output current: i oh /i ol = 24 ma (min) (v cc = 3.0 v) : i oh /i ol = 18 ma (min) (v cc = 2.3 v) : i oh /i ol = 6 ma (min) (v cc = 1.8 v) ? latch-up performance: ? 300 ma ? esd performance: machine model 200 v human body model 2000 v ? package: tssop ? bidirectional interface between 2.5 v and 3.3 v signals. ? 3.6-v tolerant function and power-down prot ection provided on a ll inputs and outputs note: do not apply a signal to any bus pins when it is in the output mode. damage may result. all floating (high impedance) bus pins must have their input level fixed by means of pull-up or pull-down resistors. weight: 0.25 g (typ.)
TC74VCX16543FT 2007-10-19 2 pin assignment (top view) iec logic symbol leab2 1a2 1a3 1a4 1a5 1a6 1a7 1a8 2a2 2a3 2a4 2a5 2a6 2a7 2a8 2a1 1b3 1b5 1b7 1b2 1b4 1b6 1b8 1b1 2b3 2b5 2b7 2b2 2b4 2b6 2b8 2b1 16 17 19 20 21 23 24 41 40 38 37 36 34 33 8 9 10 12 13 14 15 51 48 47 45 44 43 42 6 49 ceab2 oeab2 leba2 ceba2 1a1 27 28 26 30 3 55 2 1 31 29 54 56 5 52 1en3 g1 c5 2en4 g2 2c6 7en9 g7 7c11 8en10 g8 8c12 35d 4 6d ceab1 leab1 leba1 ceba1 oeba1 oeab1 oeba2 11d 9 10 12d oeba1 48 leba1 ceba1 gnd 47 46 45 44 43 42 oeab1 1 2 3 4 5 6 7 gnd 1a1 1a2 v cc 1a3 1a4 1b1 8 9 10 1b3 1b4 1a5 41 40 39 1b2 v cc 1b5 ceab1 gnd 38 1b6 1b7 1b8 37 36 35 34 33 32 gnd 11 12 13 14 15 17 1a8 2a1 2a2 2a3 gnd 2a4 2b1 18 19 20 gnd 2b4 2a5 31 30 29 2b2 2b3 2b5 1a6 1a7 21 2a6 v cc 2a7 22 23 24 v cc 2b7 2a8 2b6 2b8 25 gnd 26 ceab2 27 leab 2 28 oeab2 gnd ceba2 leba2 oeba2 56 55 54 53 52 51 50 49 leab 1 16
TC74VCX16543FT 2007-10-19 3 truth table (a bus b bus each 8-bit latch) inputs ceab leab oeab a outputs b h x x x z x x h x z l h l x b0 (note) l l l l l l l l h h note: output level before the indicated stead y-state input conditions were established. truth table (b bus a bus each 8-bit latch) inputs ceba leba oeba b outputs a h x x x z x x h x z l h l x a0 (note) l l l l l l l l h h note: output level before the indicated stead y-state input conditions were established.
TC74VCX16543FT 2007-10-19 4 system diagram 56 54 55 1 3 2 5 1b1 to seven other channels oeba1 ceba1 leba1 oeab1 ceab1 leab1 1a1 d le d le 52 29 31 30 28 26 27 15 2b1 to seven other channels oeba2 ceba2 leba2 oeab2 ceab2 leab2 2a1 d le d le 42
TC74VCX16543FT 2007-10-19 5 absolute maximum ratings (note 1) characteristics symbol rating unit power supply voltage v cc ? 0.5 to 4.6 v dc input voltage ( oeab , oeba , leab , leba , ceab , ceba ) v in ? 0.5 to 4.6 v ? 0.5 to 4.6 (note 2) dc bus i/o voltage v i/o ? 0.5 to v cc + 0.5 (note 3) v input diode current i ik ? 50 ma output diode current i ok 50 (note 4) ma dc output current i out 50 ma power dissipation p d 400 mw dc v cc /ground current per supply pin i cc /i gnd 100 ma storage temperature t stg ? 65 to 150 c note 1: exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in ic performance or even destruction. using continuously under heavy loads (e.g. the app lication of high temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating conditions (i.e. operating temper ature/current/voltage, etc. ) are within the absolute maximum ratings and the operating ranges. please design the appropriate reliability upon reviewing the toshiba semiconductor reliability handbook (?handling precautions?/?derating concept and methods?) and individual reliability data (i.e. reliability test report and estimated failure rate, etc). note 2: off state note 3: high or low state. i out absolute maximum rating must be observed. note 4: v out < gnd, v out > v cc operating ranges (note 1) characteristics symbol rating unit 1.8 to 3.6 power supply voltage v cc 1.2 to 3.6 (note 2) v input voltage ( oeab , oeba , leab , leba , ceab , ceba ) v in ? 0.3 to 3.6 v 0 to 3.6 (note 3) bus i/o voltage v i/o 0 to v cc (note 4) v 24 (note 5) 18 (note 6) output current i oh /i ol 6 (note 7) ma operating temperature t opr ? 40 to 85 c input rise and fall time dt/dv 0 to 10 (note 8) ns/v note 1: the operating ranges must be maintai ned to ensure the normal op eration of the device. unused inputs must be tied to either vcc or gnd. note 2: data retention only note 3: off state note 4: high or low state note 5: v cc = 3.0 to 3.6 v note 6: v cc = 2.3 to 2.7 v note 7: v cc = 1.8 v note 8: v in = 0.8 to 2.0 v, v cc = 3.0 v
TC74VCX16543FT 2007-10-19 6 electrical characteristics dc characteristics (ta = ? 40 to 85c, 2.7 v < v cc < = 3.6 v) characteristics symbol test condition v cc (v) min max unit h-level v ih ? 2.7 to 3.6 2.0 ? input voltage l-level v il ? 2.7 to 3.6 ? 0.8 v i oh = ? 100 a 2.7 to 3.6 v cc ? 0.2 ? i oh = ? 12 ma 2.7 2.2 ? i oh = ? 18 ma 3.0 2.4 ? h-level v oh v in = v ih or v il i oh = ? 24 ma 3.0 2.2 ? i ol = 100 a 2.7 to 3.6 ? 0.2 i ol = 12 ma 2.7 ? 0.4 i ol = 18 ma 3.0 ? 0.4 output voltage l-level v ol v in = v ih or v il i ol = 24 ma 3.0 ? 0.55 v input leakage current i in v in = 0 to 3.6 v 2.7 to 3.6 ? 5.0 a 3-state output off state current i oz v in = v ih or v il v out = 0 to 3.6 v 2.7 to 3.6 ? 10.0 a power-off leakage current i off v in , v out = 0 to 3.6 v 0 ? 10.0 a v in = v cc or gnd 2.7 to 3.6 ? 20.0 quiescent supply current i cc v cc < = (v in , v out ) < = 3.6 v 2.7 to 3.6 ? 20.0 increase in i cc per input i cc v ih = v cc ? 0.6 v 2.7 to 3.6 ? 750 a dc characteristics (ta = ? 40 to 85c, 2.3 v < = v cc < = 2.7 v) characteristics symbol test condition v cc (v) min max unit h-level v ih ? 2.3 to 2.7 1.6 ? input voltage l-level v il ? 2.3 to 2.7 ? 0.7 v i oh = ? 100 a 2.3 to 2.7 v cc ? 0.2 ? i oh = ? 6 ma 2.3 2.0 ? i oh = ? 12 ma 2.3 1.8 ? h-level v oh v in = v ih or v il i oh = ? 18 ma 2.3 1.7 ? i ol = 100 a 2.3 to 2.7 ? 0.2 i ol = 12 ma 2.3 ? 0.4 output voltage l-level v ol v in = v ih or v il i ol = 18 ma 2.3 ? 0.6 v input leakage current i in v in = 0 to 3.6 v 2.3 to 2.7 ? 5.0 a 3-state output off state current i oz v in = v ih or v il v out = 0 to 3.6 v 2.3 to 2.7 ? 10.0 a power-off leakage current i off v in , v out = 0 to 3.6 v 0 ? 10.0 a v in = v cc or gnd 2.3 to 2.7 ? 20.0 quiescent supply current i cc v cc < = (v in , v out ) < = 3.6 v 2.3 to 2.7 ? 20.0 a
TC74VCX16543FT 2007-10-19 7 dc characteristics (ta = ? 40 to 85c, 1.8 v < = v cc < 2.3 v) characteristics symbol test condition v cc (v) min max unit h-level v ih ? 1.8 to 2.3 0.7 v cc ? input voltage l-level v il ? 1.8 to 2.3 ? 0.2 v cc v i oh = ? 100 a 1.8 v cc ? 0.2 ? h-level v oh v in = v ih or v il i oh = ? 6 ma 1.8 1.4 ? i ol = 100 a 1.8 ? 0.2 output voltage l-level v ol v in = v ih or v il i ol = 6 ma 1.8 ? 0.3 v input leakage current i in v in = 0 to 3.6 v 1.8 ? 5.0 a 3-state output off state current i oz v in = v ih or v il v out = 0 to 3.6 v 1.8 ? 10.0 a power-off leakage current i off v in , v out = 0 to 3.6 v 0 ? 10.0 a v in = v cc or gnd 1.8 ? 20.0 quiescent supply current i cc v cc < = (v in , v out ) < = 3.6 v 1.8 ? 20.0 a
TC74VCX16543FT 2007-10-19 8 ac characteristics (ta = ? 40 to 85c, input: t r = t f = 2.0 ns, c l = 30 pf, r l = 500 ) (note 1) characteristics symbol test condition v cc (v) min max unit 1.8 1.5 8.0 2.5 0.2 0.8 4.0 propagation delay time (an, bn-bn, an) t plh t phl figure 1, figure 2 3.3 0.3 0.6 3.5 ns 1.8 1.5 9.8 2.5 0.2 0.8 5.0 propagation delay time ( leab , leba -bn, an) t plh t phl figure 1, figure 2 3.3 0.3 0.6 3.9 ns 1.8 1.5 9.8 2.5 0.2 0.8 4.9 3-state output enable time ( oeab , oeba , ceab , ceba ) t pzl t pzh figure 1, figure 4 3.3 0.3 0.6 3.8 ns 1.8 1.5 7.6 2.5 0.2 0.8 4.2 3-state output disable time ( oeab , oeba , ceab , ceba ) t plz t phz figure 1, figure 4 3.3 0.3 0.6 3.7 ns 1.8 4.0 ? 2.5 0.2 1.5 ? minimum pulse width ( leab , leba , ceab , ceba ) t w (l) figure 1, figure 2, figure 3 3.3 0.3 1.5 ? ns 1.8 2.5 ? 2.5 0.2 1.5 ? minimum set-up time (an, bn- le , ce ) t s figure 1, figure 2, figure 3 3.3 0.3 1.5 ? ns 1.8 1.0 ? 2.5 0.2 1.0 ? minimum hold time (an, bn- le , ce ) t h figure 1, figure 2, figure 3 3.3 0.3 1.0 ? ns 1.8 ? 0.5 2.5 0.2 ? 0.5 output to output skew t oslh t oshl (note 2) 3.3 0.3 ? 0.5 ns note 1: for c l = 50 pf, add approximately 300 ps to the ac maximum specification. note 2: parameter guaranteed by design. (t oslh = |t plhm ? t plhn |, t oshl = |t phlm ? t phln |)
TC74VCX16543FT 2007-10-19 9 dynamic switching characteristics (ta = 25c, input: t r = t f = 2.0 ns, c l = 30 pf, r l = 500 ) characteristics symbol test condition v cc (v) typ. unit v ih = 1.8 v, v il = 0 v (note) 1.8 0.25 v ih = 2.5 v, v il = 0 v (note) 2.5 0.6 quiet output maximum dynamic v ol v olp v ih = 3.3 v, v il = 0 v (note) 3.3 0.8 v v ih = 1.8 v, v il = 0 v (note) 1.8 ? 0.25 v ih = 2.5 v, v il = 0 v (note) 2.5 ? 0.6 quiet output minimum dynamic v ol v olv v ih = 3.3 v, v il = 0 v (note) 3.3 ? 0.8 v v ih = 1.8 v, v il = 0 v (note) 1.8 1.5 v ih = 2.5 v, v il = 0 v (note) 2.5 1.9 quiet output minimum dynamic v oh v ohv v ih = 3.3 v, v il = 0 v (note) 3.3 2.2 v note: parameter guaranteed by design. capacitive characteristics (ta = 25c) characteristics symbol test condition v cc (v) typ. unit input capacitance c in 1.8, 2.5, 3.3 6 pf bus i/o capacitance c i/o ? 1.8, 2.5, 3.3 7 pf power dissipation capacitance c pd f in = 10 mhz (note) 1.8, 2.5, 3.3 20 pf note: c pd is defined as the value of the internal equivalent capacitance which is ca lculated from the operating current consumption without load. average operating current can be obtained by the equation: i cc (opr) = c pd ?v cc ?f in + i cc /16 (per bit)
TC74VCX16543FT 2007-10-19 10 ac test circuit ac waveform figure 1 parameter switch t plh , t phl open t plz , t pzl 6.0 v @v cc = 3.3 0.3 v v cc 2 @v cc = 2.5 0.2 v @v cc = 1.8 v t phz , t pzh gnd 6.0 v or v cc 2 open gnd switch output measure c l = 30 pf r l = 500 r l r l c l figure 2 t plh , t phl , t w , t s , t h t h (l) t s (l) 10% 90% v m v ih gnd v ih gnd v oh v ol t s (h) t h (h) t r 2.0 ns t f 2.0 ns 90% v m 10% v m v m t phl t plh v m t w (l) t plh t phl v m input ( leab , leba ) input (an, bn) output (bn, an) t r 2.0 ns t f 2.0 ns v m figure 3 t w , t s , t h t h (l) t s (l) 10% 90% v m v ih gnd v ih gnd t s (h) t h (h) t r 2.0 ns t f 2.0 ns 90% v m 10% v m v m t w (l) input ( ceab , ceba ) input (an, bn) v m t r 2.0 ns t f 2.0 ns
TC74VCX16543FT 2007-10-19 11 v cc symbol 3.3 0.3 v 2.5 0.2 v 1.8 v v ih 2.7 v v cc v cc v m 1.5 v v cc /2 v cc /2 v x v ol + 0.3 v v ol + 0.15 v v ol + 0.15 v v y v oh ? 0.3 v v oh ? 0.15 v v oh ? 0.15 v figure 4 t plz , t phz , t pzl , t pzh 90% 10% v ol 3.0 v or v cc gnd v ih v m t phz t pzh t r 2.0 ns v m gnd v oh outputs enabled v m t plz t pzl v y outputs disabled outputs enabled output enable control ( oeab , oeba , ceab , ceba ) output (an, bn) low to off to low output (an, bn) high to off to high v x t f 2.0 ns
TC74VCX16543FT 2007-10-19 12 package dimensions weight: 0.25 g (typ.)
TC74VCX16543FT 2007-10-19 13 restrictions on product use 20070701-en general ? the information contained herein is subject to change without notice. ? toshiba is continually working to improve the quality and reliability of its products. nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity an d vulnerability to physical stress. it is the responsibility of the buyer, when utilizing toshiba produc ts, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such toshiba products could cause loss of human life, bodily injury or damage to property. in developing your designs, please ensure that toshiba products are used within specified operating ranges as set forth in the most recent toshib a products specifications. also, please keep in mind the precautions and conditions set forth in the ?handling guide for semiconduct or devices,? or ?toshiba semiconductor reliability handbook? etc. ? the toshiba products listed in this document are in tended for usage in general electronics applications (computer, personal equipment, office equipment, measuri ng equipment, industrial robotics, domestic appliances, etc.).these toshiba products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfuncti on or failure of which may cause loss of human life or bodily injury (?unintended usage?). unintended usage incl ude atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, et c.. unintended usage of toshiba products listed in his document shall be made at the customer?s own risk. ? the products described in this document shall not be used or embedded to any downstream products of which manufacture, use and/or sale are prohibited under any applicable laws and regulations. ? the information contained herein is presented only as a guide for the applications of our products. no responsibility is assumed by toshiba for any infringement s of patents or other rights of the third parties which may result from its use. no license is granted by implic ation or otherwise under any patents or other rights of toshiba or the third parties. ? please contact your sales representative for product- by-product details in this document regarding rohs compatibility. please use these products in this document in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances. toshiba assumes no liability for damage or losses occurring as a result of noncompliance with applicable laws and regulations.

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