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may 2008 rev 2 1/14 14 m74hc14 hex schmitt inverter features high speed: t pd =12 ns (typ.) at v cc = 6 v low power dissipation: i cc = 1 a (max.) at t a =25c high noise immunity: v h = 1.2 v (typ.) at v cc = 6 v symmetrical output impedance: |i oh | = i ol = 4 ma (min.) balanced propagation delays: t plh ? t phl wide operating voltage range: v cc (opr) = 2 to 6 v pin and function compatible with 74 series 14 description the m74hc14 is a high speed cmos hex schmitt inverter fabricat ed with silicon gate c 2 mos technology. pin configuration and functions are the same as those of the m74hc04 but all the inputs have 20% v cc hysteresis level. this, together with its schmitt trigger function, allows the device to be used on line receivers with slow rise/fall input signals. all inputs are equipped with protection circuits against static discharge and transient excess voltage. so-14 tssop14 dip-14 table 1. device summary order code package packaging m74hc14b1r dip-14 tube m74hc14rm13tr so-14 tape and reel m74hc14ttr tssop14 tape and reel www.st.com
pin connection and iec logic symbols m74hc14 2/14 1 pin connection and iec logic symbols figure 1. pin connections and iec logic symbols figure 2. input and output equivalent circuit table 2. pin description pin number 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 (0 v) 14 v cc positive supply voltage table 3. truth table ay lh hl 1a 1y 2a 2y 3 a 3 y gnd v cc 6a 6y 5a 5y 4a 4y 1 2 3 4 5 7 6 14 1 3 12 11 10 8 9 o u tp u t v cc v cc gnd gnd inp u t
m74hc14 maximum rating 3/14 2 maximum rating stressing the device above the rating listed in the ?absolute maximum ratings? table may cause permanent damage to the device. these are stress ratings only, and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not imp lied. exposure to absolute ma ximum rating conditions for extended periods may affect device reliability. refer also to the stmicroelectronics sure program and other relevant quality documents. 2.1 recommended operating conditions table 4. absolute maximum ratings 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 25 ma i cc or i gnd dc v cc or ground current 50 ma p d power dissipation 500 (1) 1. 500 mw at 65 c; derate to 300 mw by 10 mw/ c from 65 c to 85 c mw t stg storage temperature -65 to +150 c t l lead temperature (10 sec) 300 c table 5. recommended operating conditions symbol parameter value unit v cc supply voltage 2 to 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
electrical characteristics m74hc14 4/14 3 electrical characteristics table 6. dc specifications 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 voltage 2.0 1.0 1.28 1.5 1.0 1.5 1.0 1.5 v 4.5 2.3 2.8 3.15 2.3 3.15 2.3 3.15 6.0 3.0 3.7 4.2 3.0 4.2 3.0 4.2 v t- low level input voltage 2.0 0.3 0.74 0.9 0.3 0.9 0.3 0.9 v 4.5 1.13 1.8 2.0 1.13 2.0 1.13 2.0 6.0 1.5 2.4 2.6 1.5 2.6 1.5 2.6 v h hysteresis voltage 2.0 0.3 0.54 1.0 0.3 1.0 0.3 1.0 v 4.5 0.6 1.0 1.4 0.6 1.4 0.6 1.4 6.0 0.8 1.3 1.4 0.8 1.7 0.8 1.7 v oh high level output voltage 2.0 i o = -20 a 1.9 2.0 1.9 1.9 v 4.5 i o = -20 a 4.4 4.5 4.4 4.4 6.0 i o = -20 a 5.9 6.0 5.9 5.9 4.5 i o = -4.0 ma 4.18 4.31 4.13 4.10 6.0 i o = -5.2 ma 5.68 5.8 5.63 5.60 v ol low level output voltage 2.0 i o = -20 a 0.0 0.1 0.1 0.1 v 4.5 i o = -20 a 0.0 0.1 0.1 0.1 6.0 i o = -20 a 0.0 0.1 0.1 0.1 4.5 i o = -4.0 ma 0.17 0.26 0.33 0.40 6.0 i o = -5.2 ma 0.18 0.26 0.33 0.40 i i input leakage current 6.0 v i = v cc or gnd 0.1 1 1 a i cc quiescent supply current 6.0 v i = v cc or gnd 11020 a
m74hc14 electrical characteristics 5/14 table 7. ac electrical characteristics (c l = 50 pf, input t r = t f = 6 ns) 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 tlh t thl output transition time 2.0 30 75 95 110 ns 4.5 8 15 19 22 6.0 7 13 16 19 t plh t phl propagation delay time 2.0 42 125 155 190 ns 4.5 14 25 31 38 6.0 12 21 16 32 table 8. capacitive characteristics 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 5.0 5 10 10 10 pf c pd power dissipation capacitance (1) 5.0 f in = 10 mhz 28 pf 1. c pd is defined as the value of the ic?s internal equivalent capacitance which is calculat ed 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).
electrical characteristics m74hc14 6/14 figure 3. test circuit figure 4. waveform: propagation delay times (f = 1 mhz; 50% duty cycle)
m74hc14 package mechanical data 7/14 4 package mechanical data in order to meet environmental requirements, st offers these devices in ecopack ? packages. these packages have a lead-free second level interconnect. the category of second level interconnect is marked on the package and on the inner box label, in compliance with jedec standard jesd97. the maximum ratings related to soldering conditions are also marked on the inner box label. ecopack is an st trademark. ecopack specifications are available at: www.st.com .
package mechanical data m74hc14 8/14 dim. mm. inch min. typ max. min. typ. max. a1 0.51 0.020 b 1.39 1.65 0.055 0.065 b 0.5 0.020 b1 0.25 0.010 d 20 0.787 e 8.5 0.335 e 2.54 0.100 e3 15.24 0.600 f 7.1 0.280 i 5.1 0.201 l 3.3 0.130 z 1.27 2.54 0.050 0.100 plastic dip-14 mechanical data p001a
m74hc14 package mechanical data 9/14 dim. h c n i . m m min. typ max. min. typ. max. 8 6 0 . 0 5 7 . 1 a 7 0 0 . 0 3 0 0 . 0 2 . 0 1 . 0 1 a 4 6 0 . 0 5 6 . 1 2 a 8 1 0 . 0 3 1 0 . 0 6 4 . 0 5 3 . 0 b 0 1 0 . 0 7 0 0 . 0 5 2 . 0 9 1 . 0 1 b 9 1 0 . 0 5 . 0 c ) . p y t ( 5 4 1 c 4 4 3 . 0 6 3 3 . 0 5 7 . 8 5 5 . 8 d 4 4 2 . 0 8 2 2 . 0 2 . 6 8 . 5 e 0 5 0 . 0 7 2 . 1 e 0 0 3 . 0 2 6 . 7 3 e 7 5 1 . 0 9 4 1 . 0 0 . 4 8 . 3 f 8 0 2 . 0 1 8 1 . 0 3 . 5 6 . 4 g 0 5 0 . 0 9 1 0 . 0 7 2 . 1 5 . 0 l 6 2 0 . 0 8 6 . 0 m ) . x a m ( 8 s so-14 mechanical data po13g
package mechanical data m74hc14 10/14 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 808 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
m74hc14 package mechanical data 11/14 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 22.4 0.882 ao 6.4 6.6 0.252 0.260 bo 9 9.2 0.354 0.362 ko 2.1 2.3 0.082 0.090 po 3.9 4.1 0.153 0.161 p 7.9 8.1 0.311 0.319 tape & reel so-14 mechanical data
package mechanical data m74hc14 12/14 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 22.4 0.882 ao 6.7 6.9 0.264 0.272 bo 5.3 5.5 0.209 0.217 ko 1.6 1.8 0.063 0.071 po 3.9 4.1 0.153 0.161 p 7.9 8.1 0.311 0.319 tape & reel tssop14 mechanical data
m74hc14 revision history 13/14 5 revision history table 9. document revision history date revision changes 01-jul-2001 1 initial release. 23-may-2008 2 document converted and restructured to new template. removed: m74hc14m1r order code. added: tape and reel specific ations for so-14 and tssop14 packages.
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