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1/14 november 2003 n 3.6v tolerant inputs and outputs n high speed: t pd = 2.5 ns (max.) at v cc =3.0to3.6v t pd = 3.2 ns (max.) at v cc =2.3to2.7v t pd = 5.7 ns (max.) at v cc =1.8v n power down protection on inputs and outputs n symmetrical output impedance: |i oh |=i ol = 24ma (min) at v cc =3.0v |i oh |=i ol = 18ma (min) at v cc =2.3v |i oh |=i ol =6ma(min)atv cc =1.8v n operating voltage range: v cc (opr) = 1.8v to 3.6v n pin and function compatible with 74 series 16240 n latch-up performance exceeds 300ma (jesd 17) n esd performance: hbm > 2000v (mil std 883 method 3015); mm > 200v description the 74VCX16245 is a low voltage cmos 16 bit bus transceiver (3-state) fabricated with sub-micron silicon gate and five-layer metal wiring c 2 mos technology. it is ideal for low power and very high speed 1.8 to 3.6v applications; it can be interfaced to 3.6v signal environment for both inputs and outputs. this ic is intended for two-way asynchronous communication between data buses; the direction of data transmission is determined by dir input. the two enable inputs ng canbeusedtodisable the device so that the buses are effectively isolated. all inputs and outputs are equipped with protection circuits against static discharge, giving them 2kv esd immunity and transient excess voltage. all floating bus terminals during high z state must be held high or low. 74VCX16245 low voltage cmos 16-bit bus transceiver (3-state) with 3.6v tolerant inputs and outputs n = 1, 2 order codes package tube t & r tssop 74VCX16245ttr tfbga 74VCX16245lbr tssop tfbga pin connection
74VCX16245 2/14 input and output equivalent circuit pin connection (top view for tssop, top through view for bga) tssop tfbga
74VCX16245 3/14 pin description truth table x : dont care z : high impedance iec logic symbols pin n for tssop pin n for tfbga symbol name and function 1 a3 1dir directional control 2, 3, 5, 6, 8, 9, 11, 12 a1, b2, b1, c2, c1, d2, d1, e2 1b1 to 1b8 data inputs/outputs 13, 14, 16, 17, 19, 20, 22, 23 e1, f2, f1, g2, g1, h2, h1, j1 2b1 to 2b8 data inputs/outputs 24 j3 2dir directional control 25 j4 2g output enable input 36, 35, 33, 32, 30, 29, 27, 26 e6, f5, f6, g5, g6, h5, h6, j6 2a1 to 2a8 data inputs/outputs 47, 46, 44, 43, 41, 40, 38, 38 a6, b5, b6, c5, c6, d5, d6, e5 1a1 to 1a8 data inputs/outputs 48 a4 1g output enable input 4, 10, 15, 21, 28, 34, 39, 45 d3, d4, e3, e4, f3, f4 gnd ground (0v) 7, 18, 31, 42 c3, g3, c4, g4 v cc positive supply voltage a2, a5, b3, b4, h3, h4, j2, j5 n.c. no connect inputs function output g dir a bus b bus yn l l output input a = b l h input output b = a hxzzz
74VCX16245 4/14 absolute maximum ratings absolute maximum ratings are those values beyond which damage to the device may occur. functional operation under these conditions is not implied 1) i o absolute maximum rating must be observed 2) v o 74VCX16245 5/14 dc specifications (2.7v < v cc < 3.6v unless otherwise specified) symbol parameter test condition value unit v cc (v) -40to85c -55to125c min. max. min. max. v ih high level input voltage 2.7to3.6 2.0 2.0 v v il low level input voltage 0.8 0.8 v oh high level output voltage 2.7to3.6 i o =-100 m av cc -0.2 v cc -0.2 v 2.7 i o =-12 ma 2.2 2.2 3.0 i o =-18 ma 2.4 2.4 i o =-24 ma 2.2 2.2 v ol low level output voltage 2.7to3.6 i o =100 m a 0.2 0.2 v 2.7 i o =12 ma 0.4 0.4 3.0 i o =18 ma 0.4 0.4 i o =24 ma 0.55 0.55 i i input leakage current 2.7to3.6 v i = 0 to 3.6v 5 5 m a i off power off leakage current 0 v i or v o = 0 to 3.6v 10 10 m a i oz high impedance output leakage current 2.7to3.6 v i =v ih or v il v o = 0 to 3.6v 10 10 m a i cc quiescent supply current 2.7to3.6 v i =v cc or gnd 20 20 m a v i or v o =v cc to 3.6v 20 20 d i cc i cc incr. per input 2.7to3.6 v ih =v cc -0.6v 750 750 m a
74VCX16245 6/14 dc specifications (2.3v < v cc < 2.7v unless otherwise specified) dc specifications (1.8v < v cc < 2.3v unless otherwise specified) symbol parameter test condition value unit v cc (v) -40to85c -55to125c min. max. min. max. v ih high level input voltage 2.3to2.7 1.6 1.6 v v il low level input voltage 0.7 0.7 v oh high level output voltage 2.3to2.7 i o =-100 m av cc -0.2 v cc -0.2 v 2.3 i o =-6 ma 2.0 2.0 i o =-12 ma 1.8 1.8 i o =-18 ma 1.7 1.7 v ol low level output voltage 2.3to2.7 i o =100 m a 0.2 0.2 v 2.3 i o =12 ma 0.4 0.4 i o =18 ma 0.6 0.6 i i input leakage current 2.3to2.7 v i = 0 to 3.6v 5 5 m a i off power off leakage current 0 v i or v o = 0 to 3.6v 10 10 m a i oz high impedance output leakage current 2.3to2.7 v i =v ih or v il v o = 0 to 3.6v 10 10 m a i cc quiescent supply current 2.3to2.7 v i =v cc or gnd 20 20 m a v i or v o =v cc to 3.6v 20 20 symbol parameter test condition value unit v cc (v) -40to85c -55to125c min. max. min. max. v ih high level input voltage 1.8to2.3 0.7 vcc 0.7 vcc v v il low level input voltage 0.2 vcc 0.2 vcc v v oh high level output voltage 1.8 i o =-100 m av cc -0.2 v cc -0.2 v i o =-6 ma 1.4 1.4 v ol low level output voltage 1.8 i o =100 m a 0.2 0.2 v i o =6 ma 0.3 0.3 i i input leakage current 1.8 v i = 0 to 3.6v 5 5 m a i off power off leakage current 0 v i or v o = 0 to 3.6v 10 10 m a i oz high impedance output leakage current 1.8 v i =v ih or v il v o = 0 to 3.6v 10 10 m a i cc quiescent supply current 1.8 v i =v cc or gnd 20 20 m a v i or v o =v cc to 3.6v 20 20
74VCX16245 7/14 dynamic switching characteristics (t a = 25c, input t r =t f = 2.0ns, c l =30pf,r l = 500 w) 1) number of outputs defined as "n". measured with "n-1" outputs switching from high to low or low to high. the remaining output is measured in the low state. 2) number of outputs defined as "n". measured with "n-1" outputs switching from high to low or low to high. the remaining output is measured in the high state. 3) parameters guaranteed by design. ac electrical characteristics (c l = 30pf, r l =500 w, input t r =t f = 2.0ns ) 1) skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch- ing in the same direction, either high or low (t oslh =|t plhm -t plhn |, t oshl =|t phlm -t phln |) 2) parameter guaranteed by design capacitive characteristics 1) c pd is defined as the value of the ics internal equivalent capacitance which is calculated from the operating current consumption without load. (refer to test circuit). average operating current can be obtained by the following equation. i cc(opr) =c pd xv cc xf in +i cc /16 (per circuit) symbol parameter test condition value unit v cc (v) t a =25c min. typ. max. v olp dynamic low voltage quiet output (note 1, 3) 1.8 v il =0v v ih =v cc 0.25 v 2.5 0.6 3.3 0.8 v olv dynamic low voltage quiet output (note 1, 3) 1.8 v il =0v v ih =v cc -0.25 v 2.5 -0.6 3.3 -0.8 v ohv dynamic high voltage quiet output (note 2, 3) 1.8 v il =0v v ih =v cc 1.5 v 2.5 1.9 3.3 2.2 symbol parameter test condition value unit v cc (v) -40 to 85 c -55 to 125 c min. max. min. max. t plh t phl propagation delay time 1.8 1.5 5.7 1.5 7.0 ns 2.3 to 2.7 1.0 3.2 1.0 4.0 3.0 to 3.6 0.8 2.5 0.8 3.4 t pzl t pzh output enable time 1.8 1.5 7.5 1.5 9.0 ns 2.3 to 2.7 1.0 4.9 1.0 6.0 3.0 to 3.6 0.8 3.8 0.8 4.7 t plz t phz output disable time 1.8 1.5 5.5 1.5 6.8 ns 2.3 to 2.7 1.0 4.2 1.0 5.0 3.0 to 3.6 0.8 3.7 0.8 4.6 t oslh t oshl output to output skew time (note1, 2) 1.8 0.5 0.5 ns 2.3 to 2.7 0.5 0.5 3.0 to 3.6 0.5 0.5 symbol parameter test condition value unit v cc (v) t a =25c min. typ. max. c in input capacitance 1.8, 2.5 or 3.3 v in = 0 or v cc 4pf c out output capacitance 1.8, 2.5 or 3.3 v in = 0 or v cc 8pf c pd power dissipation capacitance (note 1) 1.8, 2.5 or 3.3 f in = 10mhz v in = 0 or v cc 28 pf
74VCX16245 8/14 test circuit c l = 30 pf or equivalent (includes jig and probe capacitance) r l =r1=500 w or equivalent r t =z out of pulse generator (typically 50 w ) waveform symbol values test switch t plh ,t phl open t pzl ,t plz (v cc = 3.0 to 3.6v) 6v t pzl ,t plz (v cc = 2.3 to 2.7v or 1.8v) 2v cc t pzh ,t phz gnd symbol v cc 3.0 to 3.6v 2.3 to 2.7v 1.8v v ih 2.7v v cc v cc v m 1.5v v cc /2 v cc /2 v x v ol + 0.3v v ol + 0.15v v ol + 0.15v v y v oh - 0.3v v oh - 0.15v v oh - 0.15v
74VCX16245 9/14 waveform 1: propagation delays (f=1mhz; 50% duty cycle) waveform 2: output enable and disable time (f=1mhz; 50% duty cycle)
74VCX16245 10/14 dim. mm. inch min. typ max. min. typ. max. a 1.2 0.047 a1 0.05 0.15 0.002 0.006 a2 0.9 0.035 b 0.17 0.27 0.0067 0.011 c 0.09 0.20 0.0035 0.0079 d 12.4 12.6 0.488 0.496 e 8.1 bsc 0.318 bsc e1 6.0 6.2 0.236 0.244 e 0.5 bsc 0.0197 bsc k0? 8?0? 8? l 0.50 0.75 0.020 0.030 tssop48 mechanical data c e b a2 a e1 d 1 pin 1 identification a1 l k e 7065588c
74VCX16245 11/14 dim. mm. mils min. typ max. min. typ. max. a 1.2 47.2 a1 0.25 9.8 a2 0.78 0.86 30.7 33.8 b 0.35 0.4 0.45 13.7 15.7 17.7 d 7.9 8.1 311.0 318.9 d1 6.4 252.0 e 5.4 5.5 5.6 212.6 216.5 220.5 e1 4 157.5 e 0.8 31.5 se 0.4 15.7 tfbga54 mechanical data 7390143/c
74VCX16245 12/14 dim. mm. inch min. typ max. min. typ. max. a 330 12.992 c 12.8 13.2 0.504 0.519 d 20.2 0.795 n 60 2.362 t 30.4 1.197 ao 8.7 8.9 0.343 0.350 bo 13.1 13.3 0.516 0.524 ko 1.5 1.7 0.059 0.067 po 3.9 4.1 0.153 0.161 p 11.9 12.1 0.468 0.476 tape & reel tssop48 mechanical data
74VCX16245 13/14 dim. mm. inch min. typ max. min. typ. max. a 330 12.992 c 12.8 13.2 0.504 0.519 d 20.2 0.795 n 60 2.362 t 22.4 0.882 ao 6.1 0.240 bo 8.6 0.339 ko 1.8 0.071 po 3.9 4.1 0.153 0.161 p 7.9 8.1 0.311 0.319 tape & reel tfbga54 mechanical data
74VCX16245 14/14 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result f rom its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specificati ons mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectronics. the st logo is a registered trademark of stmicroelectronics all other names are the property of their respective owners ? 2003 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states. http://www.st.com

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