Datasheet

1998 Jul 08 5
Philips Semiconductors Product specification
Quad D-type flip-flop with reset; positive-edge trigger 74HC/HCT175
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
, Q
n
55 175 220 265 ns 2.0 Fig.6
20 35 44 53 4.5
16 30 37 45 6.0
t
PHL
/ t
PLH
propagation delay
MR to Q
n
, Q
n
50 150 190 225 ns 2.0 Fig.8
18 30 38 45 4.5
14 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 22 100 120 ns 2.0 Fig.6
16 8 20 24 4.5
14 6 17 20 6.0
t
W
master reset pulse width
LOW
80 19 100 120 ns 2.0 Fig.8
16 7 20 24 4.5
14 6 17 20 6.0
t
rem
removal time
MR to CP
5 −33 5 5 ns 2.0 Fig.8
5 −12 5 5 4.5
5 −10 5 5 6.0
t
su
set-up time
D
n
to CP
80 3 100 120 ns 2.0 Fig.7
16 1 20 24 4.5
14 1 17 20 6.0
t
h
hold time
CP to D
n
25 2 30 40 ns 2.0 Fig.7
5 0 6 8 4.5
4 0 5 7 6.0
f
max
maximum clock pulse
frequency
6.0 25 4.8 4.0 MHz 2.0 Fig.6
30 75 24 20 4.5
35 89 28 24 6.0