SN54AHC273_15 Datasheet, PDF (1/30 Pages) Texas Instruments – Octal D-Type Flip-Flops With Clear

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SN54AHC273, SN74AHC273
SCLS376I – JUNE 1997 – REVISED MARCH 2015
SNx4AHC273 Octal D-Type Flip-Flops With Clear
1 Features
•1 Operating Range 2-V to 5.5-V V_CC
• Contain Eight Flip-Flops With Single-Rail Outputs
• Direct Clear Input
• Individual Data Input to Each Flip-Flop
• Latch-Up Performance Exceeds 250 mA Per
JESD 17
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
• 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
• Buffers and Storage Registers
• Shift Registers
• Pattern Generators
• Servers
• PCs and Notebooks
• Network Switches
• Memory Systems
• Databases
3 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.
PART NUMBER
SNx4AHC273
Device Information⁽¹⁾
PACKAGE
BODY SIZE (NOM)
PDIP (20)
24.33 mm × 6.35 mm
SSOP (20)
7.20 mm × 5.30 mm
TSSOP (20)
6.50 mm × 4.40 mm
TVSOP (20)
5.00 mm × 4.40 mm
SOIC (20)
12.80 mm × 7.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
4 Simplified Schematics
1D
2D
3D
4D
5D
6D
7D
8D
3
4
7
8
13
14
17
18
11
CLK
1
CLR
1D
C1
R
1D
C1
R
1D
C1
R
1D
C1
R
1D
C1
R
1D
C1
R
1D
C1
R
1D
C1
R
2
5
6
9
12
15
16
19
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
C
C
D
TG
TG
Q
C
C
C
C
TG
CLK(I)
C
TG
C
C
C
R
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.