ꢀꢁꢂ ꢃ ꢄꢅ ꢆ ꢇꢃ ꢈ ꢀꢁꢉ ꢃꢄ ꢅꢆ ꢇꢃ
ꢊ ꢋꢌꢍ ꢎ ꢏꢐꢑꢐ ꢒꢒ ꢓꢒ ꢋꢔ ꢕꢎ ꢀꢓ ꢑꢍꢐ ꢒ ꢀꢄ ꢍꢖ ꢎ ꢑꢓ ꢗ ꢍꢀ ꢎꢓ ꢑ ꢀ
SCLS115D − DECEMBER 1982 − REVISED AUGUST 2003
SN54HC164 . . . J OR W PACKAGE
SN74HC164 . . . D, N, NS, OR PW PACKAGE
(TOP VIEW)
D
D
D
D
D
D
D
D
D
Wide Operating Voltage Range of 2 V to 6 V
Outputs Can Drive Up To 10 LSTTL Loads
Low Power Consumption, 80-µA Max I
CC
1
2
3
4
5
6
7
14
13
12
11
10
9
Typical t = 20 ns
pd
4-mA Output Drive at 5 V
A
B
V
CC
Q
Q
Q
Q
H
G
F
Q
A
B
C
D
Low Input Current of 1 µA Max
AND-Gated (Enable/Disable) Serial Inputs
Fully Buffered Clock and Serial Inputs
Direct Clear
Q
Q
Q
E
CLR
CLK
8
GND
description/ordering information
SN54HC164 . . . FK PACKAGE
(TOP VIEW)
These 8-bit shift registers feature AND-gated
serial inputs and an asynchronous clear (CLR)
input. The gated serial (A and B) inputs permit
complete control over incoming data; a low at
either input inhibits entry of the new data and
resets the first flip-flop to the low level at the next
clock (CLK) pulse. A high-level input enables the
other input, which then determines the state of the
first flip-flop. Data at the serial inputs can be
changed while CLK is high or low, provided the
minimum setup time requirements are met.
Clocking occurs on the low-to-high-level transition
of CLK.
3
2
1
20 19
18
Q
Q
4
5
6
7
8
G
A
NC
NC
17
16
Q
F
Q
B
NC
15 NC
14
9 10 11 12 13
Q
Q
C
E
NC − No internal connection
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP − N
Tube of 25
Tube of 50
Reel of 2500
Reel of 250
Reel of 2000
Tube of 90
Reel of 2000
Reel of 250
Tube of 25
Tube of 150
Tube of 55
SN74HC164N
SN74HC164N
SN74HC164D
SN74HC164DR
SN74HC164DT
SN74HC164NSR
SN74HC164PW
SN74HC164PWR
SN74HC164PWT
SNJ54HC164J
SNJ54HC164W
SNJ54HC164FK
SOIC − D
SOP − NS
HC164
HC164
−40°C to 85°C
TSSOP − PW
HC164
CDIP − J
CFP − W
LCCC − FK
SNJ54HC164J
SNJ54HC164W
SNJ54HC164FK
−55°C to 125°C
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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Copyright 2003, Texas Instruments Incorporated
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