TC74VCX16245FT 2007-10-19 1 toshiba cmos digital integrat ed circuit silicon monolithic TC74VCX16245FT low-voltage 16-bit bus transceiver with 3.6-v tolerant inputs and outputs the TC74VCX16245FT is a high-performance cmos 16-bit bus 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 overvoltag e tolerant inputs and outputs up to 3.6 v. this 16-bit bus transceiver is controlled by direction control (dir) inputs and output enable (oe) inputs which are common to each byte. it can be used as two 8-bit transceivers or one 16-bit transceiver. the direction of data transmission is determined by the level of the dir inputs. the oe inputs can be used to disable the device so that the busses are effectively isolated. 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 = 2.5 ns (max) (v cc = 3.0 to 3.6 v) : t pd = 3.0 ns (max) (v cc = 2.3 to 2.7 v) : t pd = 5.0 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 pr otection provided on all 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.)
TC74VCX16245FT 2007-10-19 2 pin assignment (top view) iec logic symbol oe1 48 1a1 1a2 gnd 47 46 45 44 43 42 1dir 1 2 3 4 5 6 7 gnd 1b3 1b4 v cc 1b5 1b6 1a3 8 9 10 1a5 1a6 gnd 41 40 39 1a4 v cc gnd 1b1 1b2 1a7 38 1a8 2a1 2a2 37 36 35 34 33 32 1b7 11 12 13 14 15 16 17 2b2 gnd 2b3 2b4 v cc 2b5 gnd 18 19 20 v cc 2a5 2b6 31 30 29 2a3 2a4 2a6 1b8 2b1 28 21 gnd 2b7 2b8 22 23 24 2a7 2a8 2dir 27 26 25 gnd oe2 1 48 25 24 47 1a1 46 43 44 40 41 37 38 1a2 1a4 1a3 1a5 2a3 2a2 36 33 35 32 2a4 2a7 2a6 2a8 1dir 2dir 3 en1 (ba) g3 3 en2 (ab) g6 2 5 8 11 1b1 1b3 1b5 1b7 3 6 9 1b2 1b4 1b6 14 17 20 23 2b2 2b4 2b6 2b8 13 16 19 22 2b1 2b3 2b5 2b7 12 1b8 6 en4 (ba) 1 29 30 27 26 2a5 2a1 1a7 1a6 1a8 2 4 5 6 en5 (ab) oe2 oe1
TC74VCX16245FT 2007-10-19 3 truth table inputs function oe 1 1dir bus 1a1-1a8 bus 1b1-1b8 outputs l l output input a = b l h input output b = a h x z z inputs function oe 2 2dir bus 2a1-2a8 bus 2b1-2b8 outputs l l output input a = b l h input output b = a h x z z x : don?t care z : high impedance system diagram 1/8 2a1 oe2 2dir 2b1 1b1 oe 1 1dir 1a1
TC74VCX16245FT 2007-10-19 4 absolute maximum ratings (note 1) characteristics symbol rating unit power supply voltage v cc 0.5 to 4.6 v dc input voltage (dir, oe ) 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 r 50 (note 4) ma dc output current i out r 50 ma power dissipation p d 400 mw dc v cc /ground current per supply pin i cc /i gnd r 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 (dir, oe ) 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 r 24 (note 5) r 18 (note 6) output current i oh /i ol r 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 maintained to ens ure the normal operation of the device. unused inputs and bus inputs must be tied to either v cc or gnd. please connect both bus inputs and the bus outputs with vcc or gnd when the i/o of the bus terminal changes by the function. in this ca se, please note that the output is not short-circuited. 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
TC74VCX16245FT 2007-10-19 5 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
TC74VCX16245FT 2007-10-19 6 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 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 5.0 2.5 0.2 1.0 3.0 propagation delay time t plh t phl figure 1, figure 2 3.3 0.3 0.8 2.5 ns 1.8 1.5 7.5 2.5 0.2 1.0 4.9 3-state output enable time t pzl t pzh figure 1, figure 3 3.3 0.3 0.8 3.8 ns 1.8 1.5 5.5 2.5 0.2 1.0 4.2 3-state output disable time t plz t phz figure 1, figure 3 3.3 0.3 0.8 3.7 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 |)
TC74VCX16245FT 2007-10-19 7 dynamic switching characteristics (ta = 25c, input: t r = t f = 2.0 ns, c l = 30 pf) 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)
TC74VCX16245FT 2007-10-19 8 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 90% 10% output (bn, an) input (an, bn) v ol v oh v ih v m t plh t phl t r 2.0 ns v m gnd t f 2.0 ns 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 3 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 ( oe ) output (an, bn) low to off to low output (an, bn) high to off to high v x t f 2.0 ns
TC74VCX16245FT 2007-10-19 9 package dimensions weight: 0.25 g (typ.)
TC74VCX16245FT 2007-10-19 10 restrictions on product use 20070701-en ? 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. ? 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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