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DM74LS564 Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. DM74LS564
Description  Octal D-Type Flip-Flop with TRI-STATE Outputs
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DM74LS564 Datasheet(HTML) 1 Page - National Semiconductor (TI)

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TLF10191
February 1992
DM74LS564
Octal D-Type Flip-Flop with TRI-STATE
Outputs
General Description
The ’LS564 is a high speed low power octal flip-flop with a
buffered common Clock (CP) and a buffered common Out-
put Enable (OE) The information presented to the D inputs
is stored in the flip-flops on the LOW-to-HIGH Clock (CP)
transition
This device is functionally identical to the ’LS574 but has
inverted outputs For complete discussions of operations
truth tables AC and DC electrical specifications refer to the
’LS374 data sheet
Features
Y
Inputs and outputs on opposite sides of package allow-
ing easy interface with microprocessors
Y
Useful as input or output port for microprocessors
Y
Functionally identical to ’LS574
Y
Input clamp diodes limit high speed termination effects
Y
Fully TTL and CMOS compatible
Connection Diagram
Dual-In-Line Package
TLF10191 – 1
Order Number DM74LS564WM or DM74LS564N
See NS Package Number M20B or N20A
Logic Symbol
TLF10191 – 2
VCC e Pin 20
GND e Pin 10
Pin Names
Description
D0 – D7
Data Inputs
CP
Clock Pulse Input (Active Rising Edge)
OE
TRI-STATE Output Enable Input
(Active LOW)
O0–O7
TRI-STATE Outputs
TRI-STATE
is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation
RRD-B30M105Printed in U S A


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