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54298 Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. 54298
Description  Quad 2-Port Register (Multiplexer With Storage)
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

54298 Datasheet(HTML) 1 Page - National Semiconductor (TI)

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TLF10215
June 1989
54298
Quad 2-Port Register (Multiplexer With Storage)
General Description
The ’298 is a quad 2-port register It is the logical equivalent
of a quad 2-input multiplexer followed by a quad 4-bit edge-
triggered register A Common Select input selects between
two 4-bit input ports (data sources) The selected data is
transferred to the output register synchronous with the
HIGH-to-LOW transition of the Clock input
Features
Y
Select from two data sources
Y
Fully edge-triggered operation
Connection Diagram
Dual-In-Line Package
TLF10215 – 1
Order Number 54298DMQB or 54298FMQB
See NS Package Number J16A or W16A
Logic Symbol
TLF10215 – 2
VCC e Pin 16
GND e Pin 8
Pin Names
Description
S
Common Select Input
CP
Clock Pulse Input (Active Falling Edge)
I0a – I0d
Source 0 Data Inputs
I1a – I1d
Source 1 Data Inputs
Qa Qd
Flip-Flop Outputs
C1995 National Semiconductor Corporation
RRD-B30M105Printed in U S A


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