74HC377 Philips, 74HC377 Datasheet - Page 6

• Manufacturer Part Number: 74HC377
• Description: Octal D-type flip-flop with data enable positive-edge trigger
• Manufacturer: Philips

Philips Semiconductors
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
Output capability: standard
I
Note to HCT types
The value of additional quiescent supply current ( I
To determine I
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
December 1990
CC
INPUT
E
CP
D
t
t
t
t
t
t
t
f
SYMBOL
PHL
THL
W
su
su
h
h
max
Octal D-type flip-flop with data enable;
positive-edge trigger
n
category: MSI
/ t
/ t
TLH
PLH
propagation delay
output transition time
clock pulse width
set-up time
set-up time
hold time
hold time
maximum clock pulse
r
CP to Q
HIGH or LOW
D
E to CP
D
E to CP
frequency
= t
UNIT LOAD COEFFICIENT
1.50
0.50
0.20
n
n
CC
f
to CP
to CP
= 6 ns; C
per input, multiply this value by the unit load coefficient shown in the table below.
PARAMETER
n
L
= 50 pF
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
20
12
22
2
3
27
min. typ. max. min. max. min. max.
17
7
8
4
12
48
4
2
25
CC
) for a unit load of 1 is given in the family specifications.
32
15
6
T
74HCT
amb
25
15
28
2
3
22
40 to 85
( C)
40
19
30
18
33
2
3
18
40 to 125
48
22
.
ns
ns
ns
ns
ns
MHz
UNIT
ns
ns
74HC/HCT377
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
TEST CONDITIONS
V
(V)
Product specification
CC
Fig.6
Fig.6
Fig.6
Fig.7
Fig.7
Fig.7
Fig.7
Fig.6
WAVEFORMS