SN74HC165-EP Datasheet, PDF (2/16 Pages) Texas Instruments – 8-BIT PARALLEL-LOAD SHIFT REGISTER

SN74HC165ĆEP
8ĆBIT PARALLELĆLOAD SHIFT REGISTER
SCLS473A − APRIL 2003 − REVISED JANUARY 2004
FUNCTION TABLE
INPUTS
FUNCTION
SH/LD CLK CLK INH
L
X
X
Parallel load
H
H
X
No change
H
X
H
No change
H
L
↑
Shift†
H
↑
L
Shift†
† _{Shift = content of each internal register shifts}
toward serial output QH. Data at SER is
shifted into the first register.
logic diagram (positive logic)
SH/LD ¹
A
B
C
D
E
F
G
H
11
12
13
14
3
4
5
6
CLK INH ¹⁵
CLK ²
SER ¹⁰
9 _QH
S
S
S
S
S
S
S
S
C1
C1
C1
C1
C1
C1
C1
C1
1D
1D
1D
1D
1D
1D
1D
1D
R
R
R
R
R
R
R
R
7
QH
2
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