Datasheet

September 1993 4
Philips Semiconductors Product specification
Quad 2-input NAND Schmitt trigger 74HC/HCT132
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications” . Transfer characteristics are
given below.
Output capability: standard
I
CC
category: SSI
Transfer characteristics for 74HC
Voltages are referenced to GND (ground = 0 V)
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
r
=t
f
= 6 ns; C
L
= 50 pF
SYMBOL PARAMETER
T
amb
(°C)
UNIT
TEST CONDITIONS
74HC
V
CC
(V)
WAVEFORMS
+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
V
T+
positive-going threshold 0.7 1.18 1.5 0.7 1.5 0.7 1.5 V 2.0 Figs 6 and 7
1.7 2.38 3.15 1.7 3.15 1.7 3.15 4.5
2.1 3.14 4.2 2.1 4.2 2.1 4.2 6.0
V
T−
negative-going threshold 0.3 0.63 1.0 0.3 1.0 0.3 1.0 V 2.0 Figs 6 and 7
0.9 1.67 2.2 0.9 2.2 0.9 2.2 4.5
1.2 2.26 3.0 1.2 3.0 1.2 3.0 6.0
V
H
hysteresis (V
T+
− V
T−
) 0.2 0.55 1.0 0.2 1.0 0.2 1.0 V 2.0 Figs 6 and 7
0.4 0.71 1.4 0.4 1.4 0.4 1.4 4.5
0.6 0.88 1.6 0.6 1.6 0.6 1.6 6.0
SYMBOL PARAMETER
T
amb
(°C)
UNIT
TEST CONDITIONS
74HC
V
CC
(V)
WAVEFORMS
+25 −40 TO +85 −40 TO +125
min. typ. max. min. max. min. max.
t
PHL
/ t
PLH
propagation delay
nA, nB to nY
36 125 155 190 ns 2.0 Fig.13
13 25 31 38 4.5
10 21 26 32 6.0
t
THL
/ t
TLH
output transition time 19 75 95 110 ns 2.0 Fig.13
7 15 19 22 4.5
6 13 16 19 6.0