ꢀꢁꢂ ꢃ ꢄꢅ ꢆ ꢇꢇ ꢈ ꢀꢁꢉ ꢃꢄ ꢅꢆ ꢇꢇ
ꢋꢌꢍ ꢎ ꢏꢐꢑꢐ ꢒꢒ ꢓꢒ ꢋꢒ ꢔ ꢐꢕ ꢀꢄꢍ ꢖ ꢎ ꢑꢓꢗ ꢍ ꢀ ꢎꢓ ꢑꢀ
ꢊ
SCLS117D − DECEMBER 1982 − REVISED SEPTEMBER 2003
D
D
D
D
D
Wide Operating Voltage Range of 2 V to 6 V
Outputs Can Drive Up To 10 LSTTL Loads
D
D
D
D
Low Input Current of 1 µA Max
Synchronous Load
Low Power Consumption, 80-µA Max I
Direct Overriding Clear
CC
Typical t = 13 ns
pd
4-mA Output Drive at 5 V
Parallel-to-Serial Conversion
SN54HC166 . . . J OR W PACKAGE
SN74HC166 . . . D, DB, N, NS, OR PW PACKAGE
(TOP VIEW)
SN54HC166 . . . FK PACKAGE
(TOP VIEW)
SER
V
CC
SH/LD
H
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
A
3
2
1
20 19
18
H
Q
B
C
B
4
5
6
7
8
C
NC
17
16
15
14
Q
H
G
H
NC
G
D
D
CLK INH
CLK
F
F
CLK INH
E
9 10 11 12 13
GND
CLR
NC − No internal connection
description/ordering information
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP − N
SOIC − D
Tube of 25
Tube of 40
Reel of 2500
Reel of 250
Reel of 2000
Reel of 2000
Tube of 90
Reel of 2000
Reel of 250
Tube of 25
Tube of 150
Tube of 55
SN74HC166N
SN74HC166N
SN74HC166D
SN74HC166DR
SN74HC166DT
SN74HC166NSR
SN74HC166DBR
SN74HC166PW
SN74HC166PWR
SN74HC166PWT
SNJ54HC166J
HC166
SOP − NS
HC166
HC166
−40°C to 85°C
SSOP − DB
TSSOP − PW
HC166
CDIP − J
CFP − W
LCCC − FK
SNJ54HC166J
SNJ54HC166W
SNJ54HC166FK
SNJ54HC166W
SNJ54HC166FK
−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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