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74VHC164FT View Datasheet(PDF) - Toshiba

Part Name
Description
Manufacturer
74VHC164FT Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
Pin Assignment
TC74VHC164F/FT/FK
IEC Logic Symbol
A1
B2
QA 3
QB 4
QC 5
QD 6
GND 7
(top view)
14 VCC
13 QH
12 QG
11 QF
10 QE
9 CLR
8 CK
CLR (9)
CK (8)
SRG 8
R
C1/
A (1)
B (2)
&
1D
(3) QA
(4) QB
(5) QC
(6) QD
(10) QE
(11) QF
(12) QG
(13) QH
Truth Table
Inputs
CLR CK
Serial IN
A
B
L
X
X
X
H
X
X
H
L
X
H
X
L
H
H
H
Outputs
QA QB ··· QH
L
L
···
L
No Change
L QAn ··· QGn
L QAn ··· QGn
H QAn ··· QGn
X: Don’t care
QAn to QGn: The level of QA to QG, respectively, before the most recent positive edge of the clock.
System Diagram
9
CLR
A1
Serial
Inputs B 2
8
CK
R
DQ
R
DQ
R
DQ
R
DQ
R
DQ
R
DQ
R
DQ
R
DQ
CK Q CK Q CK Q CK Q CK Q CK Q CK Q CK Q
3
QA
4
QB
5
QC
6
QD
10
QE
11
QF
12
QG
13
QH
2
2012-02-29
 

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