1/8 july 2001 n high speed: t pd = 6 ns (typ.) at v cc = 3.3 v n hysteresis input voltage: v h = 650mv (typ.) at v cc = 3.0 v n compatible with ttl outputs n low power dissipation: i cc =2 m a(max.) at t a =25 c n low noise: v olp = 0.3v (typ.) at v cc = 3.3v n 75 w transmission line driving 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 n pin and function compatible with 74 series 14 n improved latch-up immunity description the 74lvq14 is a low voltage cmos hex schmitt inverter 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. the internal circuit is composed of 3 stages including buffer output, which enables high noise immunity and stable output. pin configuration and function are the same as those of the 74lvq04 but the 74lvq14 has hysteresis between the positive and negative input threshold typically of 650mv. this together with its schmitt trigger function allows it to be used on line receivers with slow rise/fall input signals. all inputs and outputs are equipped with protection circuits against static discharge, giving them 2kv esd immunity and transient excess voltage. 74lvq14 low voltage cmos hex schmitt inverter pin connection and iec logic symbols order codes package tube t & r sop 74LVQ14M 74LVQ14Mtr tssop 74lvq14ttr tssop sop
74lvq14 2/8 input and output equivalent circuit pin description truth table 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 pin no symbol name and function 1, 3, 5, 9, 11, 13 1a to 6a data inputs 2, 4, 6, 8, 10, 12 1y to 6y data outputs 7 gnd ground (0v) 14 v cc positive supply voltage ay lh hl 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 300 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
74lvq14 3/8 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 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. 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 t+ positive input threshold 3.0 2.2 2.2 2.2 v v t- negative input threshold 3.0 0.5 0.5 0.5 v v h hysteresis voltage 3.0 0.3 1.2 0.3 1.2 0.3 1.2 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 22020 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 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 0.3 0.8 v v olv -0.8 -0.3 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
74lvq14 4/8 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 /6 (per gate) 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 ) 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 2.7 7.0 11.0 13.0 15.0 ns 3.3 (*) 6.0 9.0 10.5 12.0 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 4 pf c pd power dissipation capacitance (note 1) 3.3 f in = 10mhz 29 pf
74lvq14 5/8 waveform: propagation delays (f=1mhz; 50% duty cycle)
74lvq14 6/8 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 8.55 8.75 0.336 0.344 e 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 7.62 0.300 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 0.68 0.026 s8 (max.) so-14 mechanical data po13g
74lvq14 7/8 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 tssop14 mechanical data c e b a2 a e1 d 1 pin 1 identification a1 l k e 0080337d
74lvq14 8/8 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
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