參數(shù)資料
型號: HEF40194BF
廠商: NXP Semiconductors N.V.
英文描述: 4-bit bidirectional universal shift register
中文描述: 4位雙向通用移位寄存器
文件頁數(shù): 4/8頁
文件大?。?/td> 73K
代理商: HEF40194BF
January 1995
4
Philips Semiconductors
Product specification
4-bit bidirectional universal shift register
HEF40194B
MSI
FUNCTION TABLE
Notes
1.
2.
3.
4.
H = HIGH state (the more positive voltage)
L = LOW state (the less positive voltage)
X = state is immaterial
t
n
+
1
= state after next LOW to HIGH transition of CP
AC CHARACTERISTICS
V
SS
= 0 V; T
amb
= 25
°
C; input transition times
20 ns
INPUTS (MR = HIGH)
OUTPUTS AT T
n
+
1
OPERATING MODE
S
1
L
H
H
L
L
H
H
S
0
L
L
L
H
H
H
H
D
SR
X
X
X
L
H
X
X
D
SL
X
L
H
X
X
X
X
P
0
TO P
3
X
X
X
X
X
L
H
O
0
O
0
O
1
O
1
L
H
L
H
O
1
O
1
O
2
O
2
O
0
O
0
L
H
O
2
O
2
O
3
O
3
O
1
O
1
L
H
O
3
O
3
L
H
O
2
O
2
L
H
hold
shift left
shift right
parallel load
V
DD
V
TYPICAL FORMULA FOR P (
μ
W)
Dynamic power
dissipation per
package (P)
5
1 500 f
i
+ ∑
(f
o
C
L
)
×
V
DD2
6 900 f
i
+ ∑
(f
o
C
L
)
×
V
DD2
18 900 f
i
+ ∑
(f
o
C
L
)
×
V
DD2
where
f
i
= input freq. (MHz)
f
o
= output freq. (MHz)
C
L
= load cap. (pF)
(f
o
C
L
) = sum of outputs
V
DD
= supply voltage (V)
10
15
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