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參數(shù)資料
| 型號(hào)： | DM74LS469 |
| 廠商： | Fairchild Semiconductor Corporation |
| 元件分類： | 通用總線功能 |
| 英文描述： | 8-Bit Up/Down Counter |
| 中文描述： | 8位加/減計(jì)數(shù)器 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 143K |
| 代理商： | DM74LS469 |
Absolute Maximum Ratings
(Note 1)
Supply Voltage V
CC
Input Voltage
7V
5.5V
Off-State Output Voltage
Storage Temperature
5.5V
65C to +150C
Operating Conditions
Symbol
Parameter
Military
Typ
5
Commercial
Typ
5
Units
Min
4.5
55
40
30
60
0
Max
5.5
Min
4.75
0
35
25
50
0
Max
5.25
75
V
CC
T
A
t
W
Supply Voltage
Operating Free-Air Temperature
Width of Clock
V
C
ns
125 (Note 2)
Low
High
10
t
SU
t
h
Set Up Time
Hold Time
ns
15
15
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is func-
tional, but do not guarantee specific performance limits.
Note 2:
Case Temperature
Electrical Characteristics
Over Operating Conditions
Symbol
Parameter
Test Conditions
Min
Typ
(Note 4)
Max
Units
V
IL
V
IH
V
IC
I
IL
I
IH
I
I
Low-Level Input Voltage
High-Level Input Voltage
Input Clamp Voltage
Low-Level Input Current
High-Level Input Current
Maximum Input Current
0.8
V
V
V
2
V
CC
=MIN
V
CC
=MAX
V
CC
=MAX
V
CC
=MAX
V
CC
=MIN
V
IL
=0.8V
V
IH
=2V
V
CC
=MIN
V
IL
=0.8V
V
IH
=2V
V
CC
=MAX
V
IL
=0.8V
V
IH
=2V
V
CC
=5.0V
I
I
=18 mA
V
I
=0.4V
V
I
=2.4V
V
I
=5.5V
MIL
1.5
0.25
25
1
mA
μA
mA
I
OL
=12 mA
V
OL
Low-Level Output Voltage
0.5
V
COM
MIL
I
OL
=24 mA
I
OH
=2 mA
V
OH
High-Level Output Voltage
2.4
V
COM
I
OH
=3.2 mA
V
O
=0.4V
I
OZL
100
μA
Off-State Output Current
I
OZH
I
OS
V
O
=2.4V
V
O
=0V
100
130
μA
mA
Output Short-Circuit Current
(Note 3)
Supply Current
30
I
CC
V
CC
=MAX
120
180
mA
Note 3:
No more than one output should be shorted at a time and duration of the short-circuit should not exceed one second
Note 4:
All typical values are V
CC
=5V, T
A
=25C.
3
www.fairchildsemi.com
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| DM74LS51 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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