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TC74VCX16827FT 2007-10-19 1 toshiba cmos digital integrat ed circuit silicon monolithic TC74VCX16827FT low-voltage 20-bit bus buffer with 3.6-v tolerant inputs and outputs the TC74VCX16827FT is a high-performance cmos 20-bit bus buffer. 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 TC74VCX16827FT is composed of two 10-bit sections with separate output-enable signals. for either 10-bit buffer section, the two output-enable (1oe1 and 1oe2 or 2oe1 and 2oe2) inputs must both be low for th e corresponding y outputs to be active. 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 ? 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 = 6.0 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 ? 3.6-v tolerant function and power-down prot ection provided on a ll inputs and outputs weight: 0.25 g (typ.)
TC74VCX16827FT 2007-10-19 2 pin assignment (top view) iec logic symbol 1 28 29 55 1a1 52 49 51 47 48 44 45 1a3 1a5 1a4 1a6 2a3 2a2 43 40 41 38 2a4 2a7 2a6 2a8 en1 5 8 10 1y3 1y5 1y7 3 6 9 1y2 1y4 1y6 15 17 20 23 2y1 2y3 2y5 2y7 13 16 19 21 1y9 2y2 2y4 2y6 12 1y8 & 36 37 34 33 2a5 1a10 1a8 1a7 1a9 54 1a2 42 2a1 2 1y1 14 1y10 2a9 2a10 31 30 1 1 24 2y8 26 2y9 27 2y10 56 oe22 1 2 oe12 oe21 oe11 & en2 oe 2 1 48 1a1 1a2 gnd 47 46 45 44 43 42 oe11 1 2 3 4 5 6 7 gnd 1y3 1y4 v cc 1y5 1y6 1a3 8 9 10 1a5 1a6 1y7 41 40 39 1a4 v cc 1a7 1y2 gnd 38 1a8 1a9 1a10 37 36 35 34 33 32 gnd 11 12 13 14 15 16 17 1y10 2y1 2y2 2y3 gnd 2y4 2a1 18 19 20 gnd 2a4 2y5 31 30 29 2a2 2a3 2a5 1y8 1y9 21 2y6 v cc 2y7 22 23 24 v cc 2a7 2y8 2a6 2a8 25 gnd 26 2y9 272y10 28 oe1 2 gnd 2a9 2a10 oe22 56 55 54 53 52 51 50 49 1y1
TC74VCX16827FT 2007-10-19 3 truth table (each 10-bit latch) input oe1 oe2 a output y l l l l l l h h h x x z x h x z x: don?t care z: high impedance system diagram to nine other channels oe11 1y1 2 1 56 55 oe2 1 1a1 to nine other channels oe1 2 2y1 15 28 29 42 oe2 2 2a1
TC74VCX16827FT 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 v in ? 0.5 to 4.6 v ? 0.5 to 4.6 (note 2) dc output voltage v out ? 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 v in ? 0.3 to 3.6 v 0 to 3.6 (note 3) output voltage v out 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
TC74VCX16827FT 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 (per input) 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
TC74VCX16827FT 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 6.0 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 9.8 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 7.6 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 |)
TC74VCX16827FT 2007-10-19 7 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 output capacitance c out ? 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 /20 (per bit)
TC74VCX16827FT 2007-10-19 8 ac test circuit ac waveform figure 2 t plh , t phl 90% 10% output (y) input (a) 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 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
TC74VCX16827FT 2007-10-19 9 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 (y) low to off to low output (y) high to off to high v x t f 2.0 ns
TC74VCX16827FT 2007-10-19 10 package dimensions weight: 0.25 g (typ.)
TC74VCX16827FT 2007-10-19 11 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 a nd 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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