CD74HC4094 查看數據表（PDF） - Harris Semiconductor
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CD74HC4094
Harris Semiconductor
CD74HC4094 Datasheet PDF : 8 Pages
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Functional Diagram
CD74HC4094, CD74HCT4094
2
DATA
3
CP
8-STAGE
SHIFT
REGISTER
9
QS1
10
QS2
1
STROBE
8-BIT
STORAGE
REGISTER
15
OE
THREE-
STATE
OUTPUT
4
5 Q0
6 Q1
7 Q2
14 Q3
13 Q4
Q5
12
Q6
11
Q7
GND = 8
VCC = 16
TRUTH TABLE
INPUTS
PARALLEL OUTPUTS
SERIAL OUTPUTS
CP
OE
STR
D
Q0
Qn
QS1 (NOTE 4)
QS2
↑
L
X
X
Z
Z
Q’6
NC
↓
L
X
X
Z
Z
NC
Q7
↑
H
L
X
NC
NC
Q’6
NC
↑
H
H
L
L
Qn -1
Q’6
NC
↑
H
H
H
H
Qn -1
Q’6
NC
↓
H
H
H
NC
NC
NC
Q7
NOTES:
3. H = High Voltage Level, L = Low Voltage Level, X = Don’t Care, NC = No charge, Z = High Impedance Off-state,
↑ = Transition from Low to High Level, ↓ = Transition from High to Low.
4. At the positive clock edge the information in the seventh register stage is transferred to the 8th register stage and QS1 output.
2
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