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參數(shù)資料
| 型號(hào)： | 74AC378DMX |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Parallel D Register with Enable |
| 中文描述： | 并行D注冊(cè)與啟用 |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大?。?/td> | 175K |
| 代理商： | 74AC378DMX |
DC Characteristics for ’AC Family Devices
(Continued)
74AC
54AC
74AC
Symbol
Parameter
V
CC
(V)
T
A
e
a
25
§
C
T
A
e
T
A
e
Units
Conditions
b
55
§
C to
a
125
§
C
b
40
§
C to
a
85
§
C
Typ
Guaranteed Limits
I
OLD
2
Minimum Dynamic
Output Current
5.5
50
75
mA
V
OLD
e
1.65V Max
V
OHD
e
3.85V Min
V
IN
e
V
CC
or GND
I
OHD
5.5
b
50
b
75
mA
I
CC
Maximum Quiescent
Supply Current
5.5
4.0
80.0
40.0
m
A
2
Maximum test duration 2.0 ms, one output loaded at a time.
Note:
I
IN
and I
CC
@
3.0V are guaranteed to be less than or equal to the respective limit
@
5.5V V
CC
.
I
CC
for 54AC
25
§
C is identical to 74AC
@
25
§
C.
AC Electrical Characteristics
74AC
54AC
74AC
V
CC
*
(V)
T
A
e a
25
§
C
C
L
e
50 pF
T
A
e b
55
§
C
to
a
125
§
C
C
L
e
50 pF
T
A
e b
40
§
C
to
a
85
§
C
C
L
e
50 pF
Symbol
Parameter
Units
Min
Typ
Max
Min
Max
Min
Max
f
max
Maximum Clock
Frequency
3.3
5.0
125
160
160
200
95
95
110
145
MHz
t
PLH
Propagation Delay
CP to Q
n
3.3
5.0
2.5
1.5
8.5
6.0
11.0
8.0
1.5
1.5
12.0
9.0
2.5
1.5
12.5
9.0
ns
t
PHL
Propagation Delay
CP to Q
n
3.3
5.0
2.5
1.5
8.0
5.5
10.5
7.5
1.5
1.5
12.0
9.0
2.5
1.5
11.0
8.0
ns
*
Voltage Range 3.3 is 3.3V
g
0.3V
Voltage Range 5.0 is 5.0V
g
0.5V
AC Operating Requirements
74AC
54AC
74AC
V
CC
*
(V)
T
A
e a
25
§
C
C
L
e
50 pF
T
A
e b
55
§
C
to
a
125
§
C
C
L
e
50 pF
T
A
e b
40
§
C
to
a
85
§
C
C
L
e
50 pF
Symbol
Parameter
Units
Typ
Guaranteed Minimum
t
s
Setup Time, HIGH or LOW
D
n
to CP
3.3
5.0
1.5
1.0
3.0
2.0
4.0
4.0
3.5
2.5
ns
t
h
Hold Time, HIGH or LOW
D
n
to CP
3.3
5.0
1.0
1.0
2.0
2.0
4.0
4.0
2.0
2.0
ns
t
s
Setup Time, HIGH or
LOW, E to CP
3.3
5.0
0
0
2.0
2.0
2.5
2.5
2.0
2.0
ns
t
h
Hold Time, HIGH or
LOW, E to CP
3.3
5.0
1.0
1.0
2.0
2.0
4.0
4.0
2.0
2.0
ns
t
w
CP Pulse Width
HIGH or LOW
3.3
5.0
3.0
2.0
4.5
3.5
6.5
6.5
5.5
4.0
ns
*
Voltage Range 3.3 is 3.3V
g
0.3V
Voltage Range 5.0 is 5.0V
0.5V
Capacitance
Symbol
Parameter
Typ
Units
Conditions
C
IN
Input Capacitance
4.5
pF
V
CC
e
OPEN
V
CC
e
5.0V
C
PD
Power Dissipation Capacitance
28
pF
4
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| 74AC399_ZAA3026B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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| 74AC399SC | 制造商:Fairchild Semiconductor Corporation 功能描述:IC REGISTERS LOGIC ROHS COMPLIANT:NO |
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