1/8 july 2001 n high speed : t pd = 6.8ns (typ.) at v cc = 3.3v n 5v tolerant inputs n low power dissipation: i cc = 2 m a (max.) at t a =25c n typical hysteresis : 1v at v cc = 3.3v n low noise: v olp = 0.3v (typ.) at v cc = 3.3v n symmetrical output impedance: |i oh | = i ol = 4ma (min) 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 14 n improved latch-up immunity n power down protection on inputs description the 74lvx14 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, battery operated and low noise 3.3v applications. power down protection is provided on all inputs and 0 to 7v can be accepted on inputs with no regard to the supply voltage. this device can be used to interface 5v to 3v system. it combines high speed performance with the true cmos low power consumption. pin configuration and function are the same as those of the 74lvx00 but the 74lvx14 has hysteresis between the positive and the negative input threshold typically of 1v. 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. 74lvx14 low voltage cmos hex schmitt inverter with 5v tolerant inputs pin connection and iec logic symbols order codes package tube t & r sop 74LVX14M 74LVX14Mtr tssop 74lvx14ttr tssop sop
74lvx14 2/8 input 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 conditi ons 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 +7.0 v v i dc input voltage -0.5 to +7.0 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 25 ma i cc or i gnd dc v cc or ground current 50 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 5.5 v v o output voltage 0 to v cc v t op operating temperature -55 to 125 c
74lvx14 3/8 dc specifications 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 = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. v t+ high level input threshold 3.0 2.2 2.2 2.2 v v t- low level input threshold 3.0 0.9 0.9 0.9 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 2.0 i o =-50 m a 1.9 2.0 1.9 1.9 v 3.0 i o =-50 m a 2.9 3.0 2.9 2.9 3.0 i o =-4 ma 2.58 2.48 2.4 v ol low level output voltage 2.0 i o =50 m a 0.0 0.1 0.1 0.1 v 3.0 i o =50 m a 0.0 0.1 0.1 0.1 3.0 i o =4 ma 0.36 0.44 0.55 i i input leakage current 3.6 v i = 5v or gnd 0.1 1 1 m a i cc quiescent supply current 3.6 v i = v cc or gnd 22020 m a symbol parameter test condition value unit v cc (v) t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. v olp dynamic low voltage quiet output (note 1, 2) 3.3 c l = 50 pf 0.3 0.5 v v olv -0.5 -0.3 v ihd dynamic high voltage input (note 1, 3) 3.3 2.2 v ild dynamic low voltage input (note 1, 3) 3.3 0.9
74lvx14 4/8 ac electrical characteristics (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 2) parameter guaranteed by design (*) voltage range is 3.3v 0.3v 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 x v cc x f in + i cc /6 (per gate) symbol parameter test condition value unit v cc (v) c l (pf) t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. t plh t phl propagation delay time 2.7 15 8.7 16.3 1.0 19.5 1.0 19.5 ns 2.7 50 11.2 19.8 1.0 23.0 1.0 23.0 3.3 (*) 15 6.8 10.6 1.0 12.5 1.0 12.5 3.3 (*) 50 9.3 14.1 1.0 16.0 1.0 16.0 t oslh t oshl output to output skew time (note1, 2) 2.7 50 0.5 1.0 1.5 1.5 ns 3.3 (*) 50 0.5 1.0 1.5 1.5 symbol parameter test condition value unit v cc (v) t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. c in input capacitance 3.3 4101010pf c pd power dissipation capacitance (note 1) 3.3 21 pf
74lvx14 5/8 test circuit c l =15/50pf or equivalent (includes jig and probe capacitance) r t = z out of pulse generator (typically 50 w ) waveform : propagation delays (f=1mhz; 50% duty cycle)
74lvx14 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
74lvx14 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 80 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
74lvx14 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 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 ? 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 - switzerland - united kingdom ? http://www.st.com
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