参数资料
型号: MM54C374
厂商: National Semiconductor Corporation
英文描述: Octal D-Type Latch Octal D-Type Flip-Flop
中文描述: 八路D型锁存器八路D类触发器
文件页数: 3/8页
文件大小: 170K
代理商: MM54C374
AC Electrical Characteristics
*
MM54C373/MM74C373, T
A
e
25
§
C, C
L
e
50 pF, t
r
e
t
f
e
20 ns, unless otherwise noted
Symbol
Parameter
Conditions
Min
Typ
Max
Units
t
pd0
, t
pd1
Propagation Delay,
LATCH ENABLE to Output
V
CC
e
5V, C
L
e
50 pF
V
CC
e
10V, C
L
e
50 pF
V
CC
e
5V, C
L
e
150 pF
V
CC
e
10V, C
L
e
150 pF
165
70
195
85
330
140
390
170
ns
ns
ns
ns
t
pd0
, t
pd1
Propagation Delay Data
In to Output
LATCH ENABLE
e
V
CC
V
CC
e
5V, C
L
e
50 pF
V
CC
e
10V, C
L
e
50 pF
V
CC
e
5V, C
L
e
150 pF
V
CC
e
10V, C
L
e
150 pF
155
70
185
85
310
140
370
170
ns
ns
ns
ns
t
SET-UP
Minimum Set-Up Time Data In
to CLOCK/LATCH ENABLE
t
HOLD
e
0 ns
V
CC
e
5V
V
CC
e
10V
70
35
140
70
ns
ns
f
MAX
Maximum LATCH ENABLE
Frequency
V
CC
e
5V
V
CC
e
10V
3.5
4.5
6.7
9.0
MHz
MHz
t
PWH
Minimum LATCH ENABLE
Pulse Width
V
CC
5V
V
CC
e
10V
75
55
150
110
ns
ns
t
r
, t
f
Maximum LATCH ENABLE
Rise and Fall Time
V
CC
e
5V
V
CC
e
10V
NA
NA
m
s
m
s
t
1H
, t
0H
Propagation Delay OUTPUT
DISABLE to High Impedance
State (from a Logic Level)
R
L
e
10k, C
L
e
5 pF
V
CC
e
5V
V
CC
e
10V
105
60
210
120
ns
ns
t
H1
, t
H0
Propagation Delay OUTPUT
DISABLE to Logic Level
(from High Impedance State)
R
L
e
10k, C
L
e
50 pF
V
CC
e
5V
V
CC
e
10V
105
45
210
90
ns
ns
t
THL
, t
TLH
Transition Time
V
CC
e
5V, C
L
e
50 pF
V
CC
e
10V, C
L
e
50 pF
V
CC
e
5V, C
L
e
150 pF
V
CC
e
10V, C
L
e
150 pF
65
35
110
70
130
70
220
140
ns
ns
ns
ns
C
LE
Input Capacitance
LE Input (Note 2)
7.5
10
pF
C
OD
Input Capacitance
OUTPUT DISABLE
Input (Note 2)
7.5
10
pF
C
IN
Input Capacitance
Any Other Input (Note 2)
5
7.5
pF
C
OUT
Output Capacitance
High Impedance
State (Note 2)
10
15
pF
C
PD
*
AC Parameters are guaranteed by DC correlated testing.
Power Dissipation Capacitance
Per Package (Note 3)
200
pF
3
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