SN54HC273_16 Datasheet, PDF (1/32 Pages) Texas Instruments – Octal D-Type Flip-Flops With Clear

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SN54HC273, SN74HC273
SCLS136E – DECEMBER 1982 – REVISED JULY 2016
SNx4HC273 Octal D-Type Flip-Flops With Clear
1 Features
•1 Wide Operating Voltage Range of 2 V to 6 V
• Outputs Can Drive Up to 10 LSTTL Loads
• Low Power Consumption, 80-µA Maximum I_CC
• Typical t_pd = 12 ns
• ±4-mA Output Drive at 5 V
• Low Input Current of 1-µA Maximum
• Contain Eight Flip-Flops With Single-Rail Outputs
• Direct Clear Input
• Individual Data Input to Each Flip-Flop
• On Products Compliant to MIL-PRF-38535,
All Parameters Are Tested Unless Otherwise
Noted. On All Other Products, Production
Processing Does Not Necessarily Include Testing
of All Parameters.
2 Applications
• Buffer or Storage Registers
• Shift Registers
• Pattern Generators
3 Description
The SNx4HC273 devices are positive-edge-triggered
D-type flip-flops with a direct active low 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 related directly 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.
Device Information⁽¹⁾
PART NUMBER PACKAGE (PINS) BODY SIZE (NOM)
SN54HC273J
CDIP (20)
24.20 mm × 6.92 mm
SN54HC273W
CFP (20)
13.09 mm × 6.92 mm
SN54HC273FK
LCCC (20)
8.89 mm × 8.89 mm
SN74HC273D
SOIC (20)
12.80 mm × 7.50 mm
SN74HC273DB
SSOP (20)
7.20 mm × 5.30 mm
SN74HC273NS
SO (20)
12.60 mm × 5.30 mm
SN74HC273N
PDIP (20)
24.33 mm × 6.35 mm
SN74HC273PW
TSSOP (20)
6.50 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Logic Diagram, Each Flip-Flop (Positive Logic)
C
C
D
CLK(I)
R
TG
C
C
TG
C
C
C
TG
Q
C
C
TG
C
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.