tc74vhc165f TOSHIBA Semiconductor CORPORATION, tc74vhc165f Datasheet - Page 2

• Manufacturer Part Number: tc74vhc165f
• Description: 8-bit Shift Register
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Pin Assignment
Truth Table
X: Don’t care
a······h: The level of steady state input voltage at inputs A through H respectively
QA
SHIFT/
n
LOAD
GND
to QG
H
H
H
H
H
H
S/
L
Q
CK
L
H
G
H
E
F
n
: The level of QA to QG, respectively, before the most recent positive transition of the CK.
1
2
3
4
5
6
7
8
INH
CK
X
X
H
L
L
CK
X
H
X
L
L
Inputs
SERIAL
IN
X
H
H
X
X
L
L
16
15
14
13
12
11
10
9
V
CK INH
D
C
B
A
SI
QH
CC
PARALLEL
A······H
a······h
X
X
X
X
X
X
2
QA
H
H
a
L
L
Outputs
Internal
CK INH
IEC Logic Symbol
QA
QA
QA
QA
S/
No Change
No Change
QB
b
CK
SI
L
G
A
B
C
D
E
H
F
n
n
n
n
(15)
(10)
(11)
(12)
(13)
(14)
(1)
(2)
(3)
(4)
(5)
(6)
QG
QG
QG
QG
QH
h
Outputs
n
n
n
n
TC74VHC165F/FN/FT/FK
C1 [LOAD]
2D
1D
1D
1D
Q
Q
Q
Q
Q
>
h
G
G
G
G
H
1
n
n
n
n
SRG 8
C2/
(9)
(7)
2007-10-01
QH
Q
H