1/9 may 2002 n high speed: t pd = 5.0ns (typ.) at v cc = 5v n low power dissipation: i cc = 1 m a(max.) at t a =25c n typical hysteresis: v h =700mv at v cc =4.5v n power down protection on input n symmetrical output impedance: |i oh | = i ol = 8ma (min) at v cc = 4.5v n balanced propagation delays: t plh @ t phl n operating voltage range: v cc (opr) = 4.5v to 5.5v n improved latch-up immunity description the 74v2t14 is an advanced high-speed cmos triple schmitt inverter fabricated with sub-micron silicon gate and double-layer metal wiring c 2 mos technology. the internal circuit is composed of 3 stages including buffer output, which provide high noise immunity and stable output. power down protection is provided on input and 0 to 7v can be accepted on input with no regard to the supply voltage. this device can be used to interface 5v to 3v. pin configuration and function are the same as those of the 74v2t04 but the 74v2t14 has hysteresis. this together with its schmitt trigger function allows it to be used on line receivers with slow rise/fall input signals. the input is equipped with protection circuits against static discharge, giving it esd immunity and transient excess voltage. 74v2t14 triple schmitt inverter pin connection and iec logic symbols order codes package t & r sot23-8l 74v2t14str sot323-8l 74V2T14CTR sot323-8l sot23-8l
74v2t14 2/9 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 pin no symbol name qnd function 1, 3, 6 1a, 2a, 3a data inputs 7, 5, 2 1y, 2y, 3y data outputs 4 gnd ground (0v) 8 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) 260 c symbol parameter value unit v cc supply voltage 4.5 to 5.5 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
74v2t14 3/9 dc specifications ac electrical characteristics (input t r = t f = 3ns) (*) voltage range is 5.0v 0.5v 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 /3 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 threshold voltage 4.5 0.9 2.0 0.9 2.0 0.9 2.0 v 5.5 1.1 2.0 1.1 2.0 1.1 2.0 v t- low level threshold voltage 4.5 0.5 1.5 0.5 1.5 0.5 1.5 v 5.5 0.6 1.6 0.6 1.6 0.6 1.6 v h hysteresis voltage 4.5 0.4 1.4 0.4 1.4 0.4 1.4 v 5.5 0.5 1.6 0.5 1.6 0.5 1.6 v oh high level output voltage 4.5 i o =-50 m a 4.4 4.5 4.4 4.4 v 4.5 i o =-8 ma 3.94 3.8 3.7 v ol low level output voltage 4.5 i o =50 m a 0.0 0.1 0.1 0.1 v 4.5 i o =8 ma 0.36 0.44 0.55 i i input leakage current 0 to 5.5 v i = 5.5v or gnd 0.1 1.0 1.0 m a i cc quiescent supply current 5.5 v i = v cc or gnd 11020 m a i cc additional worst case supply current 5.5 one input at 3.4v, other input at v cc or gnd 1.35 1.5 1.5 ma 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 5.0 (*) 15 5.0 7.5 1.0 9.0 1.0 10.5 ns 5.0 (*) 50 6.5 8.5 1.0 10.0 1.0 11.5 symbol parameter test condition value unit t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. c in input capacitance 4101010pf c pd power dissipation capacitance (note 1) 14 pf
74v2t14 4/9 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 delay (f=1mhz; 50% duty cycle)
74v2t14 5/9 dim. mm. mils min. typ max. min. typ. max. a 0.90 1.45 35.4 57.1 a1 0.00 0.15 0.0 5.9 a2 0.90 1.30 35.4 51.2 b 0.22 0.38 8.6 14.9 c 0.09 0.20 3.5 7.8 d 2.80 3.00 110.2 118.1 e 2.60 3.00 102.3 118.1 e1 1.50 1.75 59.0 68.8 e0.65 25.6 e1 1.95 76.7 l 0.35 0.55 13.7 21.6 sot23-8l mechanical data
74v2t14 6/9 dim. mm. mils min. typ max. min. typ. max. a 0.80 1.10 31.5 43.3 a1 0.00 0.10 0.0 3.9 a2 0.80 1.00 31.5 34.9 b 0.13 0.28 5.1 11.0 c 0.10 0.18 3.9 7.1 d 1.80 2.20 70.9 86.6 e 1.80 2.40 70.9 94.5 e1 1.15 1.35 45.3 53.1 e 0.5 19.7 e1 1.5 59.0 l 0.10 0.30 3.9 11.8 sot323-8l mechanical data
74v2t14 7/9 dim. mm. inch min. typ max. min. typ. max. a 180 7.086 c 12.8 13.0 13.2 0.504 0.512 0.519 d 20.2 0.795 n 60 2.362 t 14.4 0.567 ao 3.13 3.23 3.33 0.123 0.127 0.131 bo 3.07 3.17 3.27 0.120 0.124 0.128 ko 1.27 1.37 1.47 0.050 0.054 0.0.58 po 3.9 4.0 4.1 0.153 0.157 0.161 p 3.9 4.0 4.1 0.153 0.157 0.161 tape & reel sot23-xl mechanical data
74v2t14 8/9 dim. mm. inch min. typ max. min. typ. max. a 175 180 185 6.889 7.086 7.283 c 12.8 13 13.2 0.504 0.512 0.519 d 20.2 0.795 n 59.5 60 60.5 2.362 t 14.4 0.567 ao 2.25 0.088 bo 2.7 0.106 ko 1.2 0.047 po 3.98 4 4.2 0.156 0.157 0.165 p 3.98 4 4.2 0.156 0.157 0.165 tape & reel sot323-xl mechanical data
74v2t14 9/9 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no res ponsibility 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 devi ces or systems without express written approval of stmicroelectronics. ? the st logo is a registered trademark of stmicroelectronics ? 2002 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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