SN74HCT273DWRG4 Datasheet, PDF (1/17 Pages) Texas Instruments – OCTAL D-TYPE FLIP-FLOPS WITH CLEAR

D Operating Voltage Range of 4.5 V to 5.5 V
D Outputs Can Drive Up To 10 LSTTL Loads
D Low Power Consumption, 80-µA Max I_CC
D Typical t_pd = 12 ns
D ±4-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
SN54HCT273 . . . J OR W PACKAGE
SN74HCT273 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
SN54HCT273, SN74HCT273
OCTAL DĆTYPE FLIPĆFLOPS
WITH CLEAR
SCLS068E − NOVEMBER 1988 − REVISED AUGUST 2003
D Inputs Are TTL-Voltage Compatible
D Contain Eight D-Type Flip-Flops
D Direct Clear Input
D Applications Include:
− Buffer/Storage Registers
− Shift Registers
− Pattern Generators
SN54HCT273 . . . FK PACKAGE
(TOP VIEW)
CLR 1
1Q 2
1D 3
2D 4
2Q 5
3Q 6
3D 7
4D 8
4Q 9
GND 10
20 V_CC
19 8Q
18 8D
17 7D
16 7Q
15 6Q
14 6D
13 5D
12 5Q
11 CLK
3 2 1 20 19
2D 4
18 8D
2Q 5
17 _7D
3Q 6
16 _7Q
3D ⁷
15 _6Q
4D ⁸
14 _6D
9 10 11 12 13
description/ordering information
These devices are positive-edge-triggered D-type flip-flops with a common enable input. The ’HCT273 devices
are similar to the ’HCT377 devices, but feature a common clear enable (CLR) input instead of a latched clock.
Information at the data (D) inputs meeting the setup time requirements is transferred to the Q outputs on the
positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a particular voltage level and is not
directly related to the positive-going pulse. When CLK is at either the high or low level, the D input has no effect
at the output. The circuits are designed to prevent false clocking by transitions at CLR.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N
Tube of 20
SN74HCT273N
SN74HCT273N
SOIC − DW
Tube of 25
Reel of 2000
SN74HCT273DW
SN74HCT273DWR
HCT273
−40°C to 85°C
SOP − NS
SSOP − DB
Reel of 2000
Reel of 2000
SN74HCT273NSR
SN74HCT273DBR
HCT273
HT273
Tube of 70
SN74HCT273PW
TSSOP − PW
Reel of 2000 SN74HCT273PWR
HT273
Reel of 250
SN74HCT273PWT
CDIP − J
Tube of 20
SNJ54HCT273J
SNJ54HCT273J
−55°C to 125°C CFP − W
Tube of 85
SNJ54HCT273W
SNJ54HCT273W
LCCC − FK
Tube of 55
SNJ54HCT273FK
SNJ54HCT273FK
† _{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.
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information current as of publication date. Products conform to
specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all
parameters.
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