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1/15 february 2003 n high speed: t pd = 4.4ns (max.) at t a =85c v cca =3.0vv ccb =2.3v n low power dissipation: i cca =i ccb =20 m a(max.) at t a =85c n symmetrical output impedance: |i oha |=i ola = 8ma min at v cca =3.0vv ccb = 1.65v or 2.3v |i oha |=i ola = 18ma min at v cca =2.3vv ccb = 1.65v) n balanced propagation delays: t plh @ t phl n power down protection on inputs and outputs n series resistor on a side n operating voltage range: v cca (opr) = 2.3v to 3.6v (1.2v data retention) v ccb (opr) = 1.65v to2.7v (1.2v data retention) n pin and function compatible with 74 series 16245 n latch-up performance exceeds 500ma (jesd 17) n esd performance: hbm > 2000v (mil std 883 method 3015); mm > 200v description the 74vcx1632245 is a dual supply low voltage cmos 16-bit bus transceiver fabricated with sub-micron silicon gate and triple-layer metal wiring c 2 mos tecnology. designed for use as an interface between a 3.3v bus and a 2.5v or 1.8v bus in a mixed 3.3v/1.8v,3.3v/2.5v and 2.5v/ 1.8v supply sistems, it achieves high speed operation while maintaining the cmos low power dissipation. this ic is intended for two-way asynchronous communication between data buses and the direction of data transmission is determined by ndir inputs. the enable inputs ng canbeusedto disable the device so that the buses are effectively isolated. the a-port interfaces with the 3v bus, the b-port with the 2.5v and 1.8v bus. all inputs are equipped with protection circuits against static discharge, giving them 2kv esd im- munity and transient excess voltage. all floating bus terminals during high z state must be held high or low. 74vcx1632245 16-bit dual supply bus transceiver level translator with a side series resistor this is preliminary information on a new product forseen to be developped. details are subject to change without notice. order codes package tray t & r tssop48 74VCX1632245TTR tfbga54 74vcx1632245lb 74vcx1632245lbr m fbga42 74vcx1632245tb 74vcx1632245tbr tssop m fbga tfbga target data logic diagram
74vcx1632245 2/15 input and output equivalent circuit pin description tfbga54 pin n o m fbga42 pin n o tssop pin n o symbol name and function a3 b3 1 1dir directional controls j3 f3 24 2dir directional controls a6, b5, b6, c5, c6, d5, d6, e5 a4, a5, a6, b5, b6, c5, c6, d5 47, 48, 44, 43, 41, 40, 38, 37 1a1 to 1a8 data inputs/outputs e6, f5, f6, g5, g6, h5, h6, j6 d6, e5, e6, f5, f6,g4, g5, g6 36, 35, 33, 32, 30, 29, 27, 26 2a1 to 2a8 data inputs/outputs a1, b2, b1, c2, c1, d2, d1, e2 a3, a2, a1, b2, b1, c2, c1, d2 2, 3, 5, 6, 8, 9, 11, 12 1b1 to 1b8 data inputs/outputs e1, f2, f1, g2, g1, h2, h1, j1 d1, e2, e1, f2, f1,g3, g2, g1 13, 14, 16, 17, 19, 20, 22, 23 2b1 to 2b8 data inputs/outputs a4 b4 25 g 2 output enable inputs j4 f4 48 g 1 output enable inputs d3, d4, e3, e4, f3, f4 c3, c4, e3, e4 4,10,15, 21, 28, 34, 39, 45 gnd ground (0v) a2, a5, b3, b4, h3, h4, j8, j5 - - nc no connected c4, g4 d4 42, 31 v cca positive supply voltage c3,g3 d3 7,18 v ccb positive supply voltage
74vcx1632245 3/15 pin connection (top view for tssop, top thru view for bga) truth table x=dont care; z=high impedance inputs function output g dir a bus b bus l l output input a = b l h input output b = a hxzzz tssop tfbga m fbga
74vcx1632245 4/15 absolute maximum ratings absolute maximum ratings are those value beyond which damage to the device may occur. functional operation under these conditions is not implied recommended operating conditions 1) v in from 0.8v to 2.0v at v cc =3.0v symbol parameter value unit v cca supply voltage -0.5 to +4.6 v v ccb supply voltage -0.5 to +4.6 v v i dc input voltage -0.5 to +4.6 v v i/oa dc i/o voltage (output disabled) -0.5 to +4.6 v v i/ob dc i/o voltage (output disabled) -0.5 to +4.6 v v i/oa dc i/o voltage -0.5 to v cca + 0.5 v v i/ob dc i/o voltage -0.5 to v ccb + 0.5 v i ik dc input diode current - 20 ma i ok dc output diode current - 50 ma i oa dc output current 50 ma i ob dc output current 50 ma i cca dc v cc or ground current 100 ma i ccb dc v cc or ground current 100 ma p d power dissipation 400 mw t stg storage temperature -65 to +150 c t l lead temperature (10 sec) 300 c symbol parameter value unit v cca supply voltage 2.3 to 3.6 v v ccb supply voltage 1.65 to 2.7 v v i input voltage (dir, g ) 0 to v ccb v v i/oa i/o voltage 0 to v cca v v i/ob i/o voltage 0 to v ccb v t op operating temperature -40 to 85 c dt/dv input rise and fall time (note 1) 0 to 10 ns/v
74vcx1632245 5/15 dc specification for v cca (*) v cc range = 3.30.3; 2.50.2v; 1.80.15v symbol parameter test condition value unit v ccb (*) (v) v cca (*) (v) t a =25c -40 to 85 c min. typ. max. min. max. v iha high level input voltage (an) 1.8 2.5 1.6 1.6 v 1.8 3.3 2.0 2.0 2.5 3.3 2.0 2.0 v ila low level input voltage (an) 1.8 2.5 0.7 0.7 v 1.8 3.3 0.8 0.8 2.5 3.3 0.8 0.8 v oha high level output voltage 2.3 3.0 i o =-100 m a 2.8 2.8 v 2.3 3.0 i o =-8ma 2.4 2.4 1.65 3.0 i o =-8ma 2.4 2.4 1.65 2.3 i o =-6ma 1.8 1.8 v ola low level output voltage 2.3 3.0 i o =100 m a 0.2 0.2 v 2.3 3.0 i o =8ma 0.55 0.55 1.65 3.0 i o =8ma 0.55 0.55 1.65 2.3 i o =6ma 0.40 0.40 i ia input leakage current 3.6 5.5 v i =v cc or gnd 0.5 5 m a i oza high impedance output leakage current 2.7 3.6 v ia = gnd or 3.6v v ib =v ihb or v ilb g =v ccb 1.0 10 m a i off power off leakage current 00v ia = gnd to 3.6v v ib = gnd to 3.6v g , dir = gnd to 3.6v 1.0 10 m a i ccta quiescent supply current 1.95 3.6 v ia =v cca or gnd v ib =v ccb or gnd 220 m a 1.95 2.7 2.7 3.6 d i ccta maximum quiescent supply current / input (an) 2.7 3.6 v ia =v cca -0.6v v ib =v ccb or gnd 0.75 ma 1.95 3.6 1.95 2.7
74vcx1632245 6/15 dc specification for v ccb (*) v cc range = 3.30.3; 2.50.2v; 1.80.15v symbol parameter test condition value unit v ccb (v) (*) v cca (v) (*) t a =25c -40 to 85 c min. typ. max. min. max. v ihb high level input voltage (bn, dir, g ) 1.8 2.5 0.65v ccb 0.65v ccb v 1.8 3.3 0.65v ccb 0.65v ccb 2.5 3.3 1.6 1.6 v ilb low level input voltage (bn, dir, g ) 1.8 2.5 0.35v ccb 0.35v ccb v 1.8 3.3 0.35v ccb 0.35v ccb 2.5 3.3 0.7 0.7 v ohb high level output voltage 2.3 3.0 i o =-100 m a 2.1 2.1 v 2.3 3.0 i o =-18ma 1.7 1.7 1.65 3.0 i o =-6ma 1.25 1.25 1.65 2.3 i o =-6ma 1.25 1.25 v olb low level output voltage 2.3 3.0 i o =100 m a 0.2 0.2 v 2.3 3.0 i o =18ma 0.60 0.60 1.65 3.0 i o =6ma 0.30 0.30 1.65 2.3 i o =6ma 0.30 0.30 i ib input leakage current 2.7 3.6 v i =v cc or gnd 0.5 5 m a i ozb high impedance output leakage current 2.7 3.6 v ia =v iha or v ila v ib = gnd or 3.6v g =v ccb 1.0 10 m a i cctb quiescent supply current 1.95 3.6 v ia =v cca or gnd v ib =v ccb or gnd dir or g =v ccb or gnd 220 m a 1.95 2.7 2.7 3.6 d i cctb maximum quiescent supply current / input (bn, dir, g ) 2.7 3.6 v ib =v ccb -0.6v v ia =v cca or gnd 0.75 ma 1.95 3.6 1.95 2.7
74vcx1632245 7/15 dinamic switching characteristics symbol parameter test condition value unit v cca (v) v ccb (v) t a =25c -40to85c min. typ. max. min. max. v olpa dynamic low level quiet an output 1.8 2.5 c l =30pf v il =0v v ih =v cc 0.25 v 1.8 3.3 0.35 2.5 3.3 0.35 v olpb dynamic low level quiet bn output 1.8 2.5 c l =30pf v il =0v v ih =v cc 0.25 v 1.8 3.3 0.25 2.5 3.3 0.6 v olva dynamic low level quiet an output 1.8 2.5 c l =30pf v il =0v v ih =v cc -0.25 v 1.8 3.3 -0.25 2.5 3.3 -0.35 v olvb dynamic low level quiet bn output 1.8 2.5 c l =30pf v il =0v v ih =v cc -0.25 v 1.8 3.3 -0.25 2.5 3.3 -0.6 v ohva dynamic low level quiet an output 1.8 2.5 c l =30pf v il =0v v ih =v cc 2.1 v 1.8 3.3 2.6 2.5 3.3 2.6 v ohvb dynamic low level quiet bn output 1.8 2.5 c l =30pf v il =0v v ih =v cc 1.7 v 1.8 3.3 1.7 2.5 3.3 2.0
74vcx1632245 8/15 ac electrical characteristics 1) skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switching 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 capacitance characteristics 1) c pd is defined as the value of the ics internal equivqlent capacitance which is calculated from the operating current consumption without load. (refer to test circuit). average current cqn be obtqined 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 ccb (v) v cca (v) -40 to 85 c min. max. t plh t phl propagation delay time an to bn 2.5 0.2 1.8 0.15 1.0 5.8 ns 3.3 0.3 1.8 0.15 1.0 6.2 3.3 0.3 2.5 0.2 1.0 4.4 t plh t phl propagation delay time bn to an 2.5 0.2 1.8 0.15 1.0 5.5 ns 3.3 0.3 1.8 0.15 1.0 5.1 3.3 0.3 2.5 0.2 1.0 4.0 t pzl t pzh output enable time g to an 2.5 0.2 1.8 0.15 1.0 5.3 ns 3.3 0.3 1.8 0.15 1.0 5.1 3.3 0.3 2.5 0.2 1.0 4.0 t pzl t pzh output enable time g to bn 2.5 0.2 1.8 0.15 1.0 8.3 ns 3.3 0.3 1.8 0.15 1.0 8.2 3.3 0.3 2.5 0.2 1.0 4.6 t plz t phz output disable time g to an 2.5 0.2 1.8 0.15 1.0 5.2 ns 3.3 0.3 1.8 0.15 1.0 5.6 3.3 0.3 2.5 0.2 1.0 4.8 t plz t phz output disable time g to bn 2.5 0.2 1.8 0.15 1.0 4.6 ns 3.3 0.3 1.8 0.15 1.0 4.5 3.3 0.3 2.5 0.2 1.0 4.4 t oslh t oshl output to output skew time (note1, 2) 2.5 0.2 1.8 0.15 0.5 ns 3.3 0.3 1.8 0.15 0.5 3.3 0.3 2.5 0.2 0.75 symbol parameter test condition value unit v cca (v) v ccb (v) t a =25c -40to85c min. typ. max. min. max. c inb input capacitance open open 5 pf c i/o input/output capacitance 3.3 2.5 6 pf c pd power dissipation capacitance 3.3 2.5 f=10mhz 28 pf 3.3 1.8 28 pf
74vcx1632245 9/15 test circuit c l = 30pf or equivalent (includes jig and probe capacitance) r l =r 1 =500 w or equivalent r t =z out of pulse generator (typically 50 w ) waveform symbol value 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 v cc = 1.65 to 1.95v) 2v cc t pzh ,t phz gnd symbol v cc 3.0 to 3.6v 2.3 to 2.7v 1.65 to 1.95v v ih v cc 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 ol -0.3v v ol -0.15v v ol -0.15v
74vcx1632245 10/15 waveform 1: propagation delay (f=1mhz; 50% duty cycle) waveform 2: output enable and disable time (f=1mhz; 50% duty cycle)
74vcx1632245 11/15 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
74vcx1632245 12/15 dim. mm. mils min. typ max. min. typ. max. a 1.2 47.2 a1 0.25 9.8 a2 0.85 33.5 b 0.45 0.55 17.7 21.7 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 0051434/e
74vcx1632245 13/15 dim. mm. mils min. typ max. min. typ. max. a 3.90 4.10 153.5 161.4 b 3.40 3.60 133.9 141.7 c 1.07 1.16 42.1 45.6 d 0.3 11.8 e 0.5 19.7 f 0.78 0.86 30.7 33.9 m fbga42 mechanical data
74vcx1632245 14/15 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
74vcx1632245 15/15 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 ? 2003 stmicroelectronics - printed in italy - all rights reserved stmicroelectronics group of companies australia - brazil - canada - china - finland - france - germany - hong kong - india - israel - italy - japan - malaysia - malt a - morocco singapore - spain - sweden - switzerland - united kingdom - united states. ? http://www.st.com

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