1/9 july 2001 n high speed: t pd = 5.5 ns (typ.) at v cc = 3.3 v n compatible with ttl outputs n low power dissipation: i cc =4 m a (max.) at t a =25 c n low noise: v olp = 0.2v (typ.) at v cc = 3.3v n 75 w transmission line output drive capability n symmetrical output impedance: |i oh |=i ol = 12ma (min) at v cc = 3.0 v n pci bus levels guaranteed at 24 ma n balanced propagation delays: t plh @ t phl n operating voltage range: v cc (opr) = 2v to 3.6v (1.2v data retention) n pin and function compatible with 74 series 158 n improved latch-up immunity description the 74lvq158 is a low voltage cmos quad 2-channel multiplexer (inverting) fabricated with sub-micron silicon gate and double-layer metal wiring c 2 mos technology. it is ideal for low power and low noise 3.3v applications. it consists of four 2-input digital multiplexers with common select and strobe inputs. when strobe input is held high selection of data is inhibit and all the outputs become high. the select decoding determines whether the a or b inputs get routed to their corresponding y outputs. all inputs and outputs are equipped with protection circuits against static discharge, giving them 2kv esd immunity and transient excess voltage. 74lvq158 low voltage quad 2 channel multiplexer (inv.) pin connection and iec logic symbols order codes package tube t & r sop 74lvq158m 74LVQ158MTR tssop 74lvq158ttr tssop sop
74lvq158 2/9 input and output equivalent circuit pin description truth table x : don't care logic diagram pin no symbol name and function 1 select common data select input 2, 5, 11, 14 1a to 4a data inputs from source a 3, 6, 10, 13 1b to 4b data inputs from source b 4, 7, 9, 12 1y to 4y multiplexer outputs 15 strobe strobe input 8 gnd ground (0v) 16 v cc positive supply voltage inputs output strobe select a b y hxxxh lllxh llhxl lhxlh lhxhl
74lvq158 3/9 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 recommended operating conditions 1) truth table guaranteed: 1.2v to 3.6v 2) v in from 0.8v to 2v dc specifications 1) maximum test duration 2ms, one output loaded at time 2) incident wave switching is guaranteed on transmission lines with impedances as low as 75 w symbol parameter value unit v cc supply voltage -0.5 to +7 v v i dc input voltage -0.5 to v cc + 0.5 v v o dc output voltage -0.5 to v cc + 0.5 v i ik dc input diode current 20 ma i ok dc output diode current 20 ma i o dc output current 50 ma i cc or i gnd dc v cc or ground current 200 ma t stg storage temperature -65 to +150 c t l lead temperature (10 sec) 300 c symbol parameter value unit v cc supply voltage (note 1) 2 to 3.6 v v i input voltage 0 to v cc v v o output voltage 0 to v cc v t op operating temperature -55 to 125 c dt/dv input rise and fall time v cc = 3.0v (note 2) 0 to 10 ns/v symbol parameter test condition value unit v cc (v) t a =25 c -40 to 85 c -55 to 125 c min. typ. max. min. max. min. max. v ih high level input voltage 3.0 to 3.6 2.0 2.0 2.0 v v il low level input voltage 0.8 0.8 0.8 v v oh high level output voltage 3.0 i o =-50 m a 2.9 2.99 2.9 2.9 v i o =-12 ma 2.58 2.48 2.48 i o =-24 ma 2.2 2.2 v ol low level output voltage 3.0 i o =50 m a 0.002 0.1 0.1 0.1 v i o =12 ma 0 0.36 0.44 0.44 i o =24 ma 0.55 0.55 i i input leakage current 3.6 v i =v cc or gnd 0.1 1 1 m a i cc quiescent supply current 3.6 v i =v cc or gnd 44040 m a i old dynamic output current (note 1, 2) 3.6 v old = 0.8 v max 36 25 ma i ohd v ohd =2vmin -25 -25 ma
74lvq158 4/9 dynamic switching characteristics 1) worst case package. 2) max number of outputs defined as (n). data inputs are driven 0v to 3.3v, (n-1) outputs switching and one output at gnd. 3) max number of data inputs (n) switching. (n-1) switching 0v to 3.3v. inputs under test switching: 3.3v to threshold (v ild ), 0v to threshold (v ihd ), f=1mhz. ac electrical characteristics (c l = 50 pf, r l = 500 w , input t r =t f = 3ns) 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 (*) voltage range is 3.3v 0.3v capacitive characteristics 1) c pd is defined as the value of the ic's 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 /n (per circuit) symbol parameter test condition value unit v cc (v) t a =25 c -40 to 85 c -55 to 125 c min. typ. max. min. max. min. max. v olp dynamic low voltage quiet output (note 1, 2) 3.3 c l =50pf 0.2 0.8 v v olv -0.8 -0.2 v ihd dynamic high voltage input (note 1, 3) 3.3 2 v v ild dynamic low voltage input (note 1, 3) 3.3 0.8 v symbol parameter test condition value unit v cc (v) t a =25 c -40 to 85 c -55 to 125 c min. typ. max. min. max. min. max. t plh t phl propagation delay time select -y 2.7 8.3 13.5 15.5 17.5 ns 3.3 (*) 7.3 10.0 11.5 13.0 t plh t phl propagation delay time strobe -y 2.7 7.4 12.0 14.0 16.0 ns 3.3 (*) 6.5 10.0 11.5 13.0 t plh t phl propagation delay time a, b -y 2.7 6.8 10.5 12.0 13.5 ns 3.3 (*) 5.5 8.0 9.0 10 t oslh t oshl output to output skew time (note1, 2) 2.7 0.5 1.0 1.0 1.0 ns 3.3 (*) 0.5 1.0 1.0 1.0 symbol parameter test condition value unit v cc (v) t a =25 c -40 to 85 c -55 to 125 c min. typ. max. min. max. min. max. c in input capacitance 3.3 5 pf c pd power dissipation capacitance (note 1) 3.3 f in = 10mhz 32 pf
74lvq158 5/9 test circuit c l = 50pf or equivalent (includes jig and probe capacitance) r l = 500 w or equivalent r t =z out of pulse generator (typically 50 w ) waveform 1: propagation delays for non inverting conditions
74lvq158 6/9 waveform 2: propagation delays for inverting conditions
74lvq158 7/9 dim. mm. inch min. typ max. min. typ. max. a 1.75 0.068 a1 0.1 0.2 0.003 0.007 a2 1.65 0.064 b 0.35 0.46 0.013 0.018 b1 0.19 0.25 0.007 0.010 c 0.5 0.019 c1 45 (typ.) d 9.8 10 0.385 0.393 e 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 8.89 0.350 f 3.8 4.0 0.149 0.157 g 4.6 5.3 0.181 0.208 l 0.5 1.27 0.019 0.050 m 0.62 0.024 s8 (max.) so-16 mechanical data po13h
74lvq158 8/9 dim. mm. inch min. typ max. min. typ. max. a 1.2 0.047 a1 0.05 0.15 0.002 0.004 0.006 a2 0.8 1 1.05 0.031 0.039 0.041 b 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0089 d 4.9 5 5.1 0.193 0.197 0.201 e 6.2 6.4 6.6 0.244 0.252 0.260 e1 4.3 4.4 4.48 0.169 0.173 0.176 e 0.65 bsc 0.0256 bsc k0 8 0 8 l 0.45 0.60 0.75 0.018 0.024 0.030 tssop16 mechanical data c e b a2 a e1 d 1 pin 1 identification a1 l k e 0080338d
74lvq158 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 infringe ment of patents or other righ ts of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this pub lication are subject to change without notice. thi s pub lication supersedes and replaces all information previously supplied. stmicroelectronics prod ucts are not authori zed for use as critical components in life suppo rt devices or systems without express written approval of stmicroelectronics. ? the st logo is a registered trademark of stmicroelectronics ? 2001 stmicroelectronics - printed in italy - all rights reserved stmicroelectronics group of companies australia - brazil - china - finland - france - germany - hong kong - india - italy - japan - malaysia - malta - morocco singapore - spain - sweden - swit zerland - united kingdom ? http://w ww.st.com 9/9
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