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54ABT273E-QML Datasheet

  • 54ABT273E-QML

  • Octal D-Type Flip-Flop

  • 8頁

  • NSC

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54ABT273 Octal D-Type Flip-Flop
July 1998
54ABT273
Octal D-Type Flip-Flop
General Description
The 鈥橝BT273 has eight edge-triggered D-type flip-flops with
individual D inputs and Q outputs. The common buffered
Clock (CP) and Master Reset (MR) inputs load and reset
(clear) all flip-flops simultaneously.
The register is fully edge-triggered. The state of each D in-
put, one setup time before the LOW-to-HIGH clock transi-
tion, is transferred to the corresponding flip-flop鈥檚 Q output.
All outputs will be forced LOW independently of Clock or
Data inputs by a LOW voltage level on the MR input. The de-
vice is useful for applications where the true output only is re-
quired and the Clock and Master Reset are common to all
storage elements.
n
n
n
n
n
n
n
n
n
n
n
Buffered common clock
Buffered, asynchronous Master Reset
See 鈥橝BT377 for clock enable version
See 鈥橝BT373 for transparent latch version
See 鈥橝BT374 for TRI-STATE
廬
version
Output sink capability of 48 mA, source capability of
24 mA
Guaranteed latchup protection
High impedance glitch free bus loading during entire
power up and power down cycle
Non-destructive hot insertion capability
Disable time less than enable time to avoid bus
contention
Standard Microcircuit Drawing (SMD) 5962-9321701
Features
n
Eight edge-triggered D flip-flops
Ordering Code
Military
54ABT273J-QML
54ABT273W-QML
54ABT273E-QML
J20A
W20A
E20A
Package
Number
20-Lead Ceramic Dual-In-Line
20-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier, Type C
Package Description
TRI-STATE
廬
is a registered trademark of National Semiconductor Corporation.
漏 1998 National Semiconductor Corporation
DS100205
www.national.com

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