SN54AHCT273 Datasheet, PDF (1/15 Pages) Texas Instruments – OCTAL D-TYPE FLIP-FLOPS WITH CLEAR

D Inputs Are TTL-Voltage Compatible
D Contain Eight Flip-Flops With Single-Rail
Outputs
D Direct Clear Input
D Individual Data Input to Each Flip-Flop
D Applications Include:
– Buffer/Storage Registers
– Shift Registers
– Pattern Generators
D Latch-Up Performance Exceeds 250 mA Per
JESD 17
D ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
description
These devices are positive-edge-triggered D-type
flip-flops with a direct clear (CLR) input.
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 transition time of the positive-going pulse.
When CLK is at either the high or low level, the
D input has no effect at the output.
SN54AHCT273, SN74AHCT273
OCTAL D-TYPE FLIP-FLOPS
WITH CLEAR
SCLS375E – JUNE 1997 – REVISED APRIL 2002
SN54AHCT273 . . . J OR W PACKAGE
SN74AHCT273 . . . DB, DGV, DW, N, NS, OR PW 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
SN54AHCT273 . . . FK PACKAGE
(TOP VIEW)
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
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube
SN74AHCT273N
SN74AHCT273N
SOIC – DW
Tube
Tape and reel
SN74AHCT273DW
SN74AHCT273DWR
AHCT273
–40°C to 85°C SOP – NS
Tape and reel SN74AHCT273NSR AHCT273
SSOP – DB
Tape and reel SN74AHCT273DBR HB273
TSSOP – PW Tape and reel SN74AHCT273PWR HB273
TVSOP – DGV Tape and reel SN74AHCT273DGVR HB273
CDIP – J
Tube
SNJ54AHCT273J
SNJ54AHCT273J
–55°C to 125°C CFP – W
Tube
SNJ54AHCT273W
SNJ54AHCT273W
LCCC – FK
Tube
SNJ54AHCT273FK SNJ54AHCT273FK
† _{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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