Datasheet

1998 Jul 08 5
Philips Semiconductors Product specification
Hex D-type flip-flop with reset; positive-edge trigger 74HC/HCT174
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications” .
Output capability: standard
I
CC
category: MSI
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.
t
PHL
/ t
PLH
propagation delay
CP to Q
n
55 165 205 250 ns 2.0 Fig.6
20 33 41 50 4.5
16 28 35 43 6.0
t
PHL
propagation delay
MR to Q
n
44 150 190 225 ns 2.0 Fig.7
16 30 38 45 4.5
13 26 33 38 6.0
t
THL
/ t
TLH
output transition time 19 75 95 110 ns 2.0 Fig.6
7 15 19 22 4.5
6 13 16 19 6.0
t
W
clock pulse width
HIGH or LOW
80 17 100 120 ns 2.0 Fig.6
16 6 20 24 4.5
14 5 17 20 6.0
t
W
master reset pulse
width; LOW
80 12 100 120 ns 2.0 Fig.7
16 4 20 24 4.5
14 3 17 20 6.0
t
rem
removal time
MR to CP
5 −11 5 5 ns 2.0 Fig.7
5 −4 5 5 4.5
5 −3 5 5 6.0
t
su
set-up time
D
n
to CP
60 6 75 90 ns 2.0 Fig.8
12 2 15 18 4.5
10 2 13 15 6.0
t
h
hold time
D
n
to CP
3 −6 3 3 ns 2.0 Fig.8
3 −2 3 3 4.5
3 −2 3 3 6.0
f
max
maximum clock pulse
frequency
6 30 5 4 MHz 2.0 Fig.6
30 90 24 20 4.5
35 107 28 24 6.0