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DM74ALS373 Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DM74ALS373
Description  Octal D-Type TRI-STATE Transparent Latch
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DM74ALS373 Datasheet(HTML) 1 Page - National Semiconductor (TI)

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TLF6220
March 1996
DM74ALS373
Octal D-Type TRI-STATE
Transparent Latch
General Description
These 8-bit registers feature totem-pole TRI-STATE outputs
designed specifically for driving highly-capacitive or relative-
ly low-impedance loads The high-impedance state and in-
creased high-logic-level drive provide these registers with
the capability of being connected directly to and driving the
bus lines in a bus-organized system without need for inter-
face or pull-up components They are particularly attractive
for implementing buffer registers IO ports bidirectional
bus drivers and working registers
The eight latches of the ALS373 are transparent D-type
latches While the enable (G) is high the Q outputs will fol-
low the data (D) inputs When the enable is taken low the
output will be latched at the level of the data that was set
up
A buffered output control input can be used to place the
eight outputs in either a normal logic state (high or low logic
levels) or a high-impedance state In the high-impedance
state the outputs neither load nor drive the bus lines signifi-
cantly
The output control does not affect the internal operation of
the latches That is the old data can be retained or new
data can be entered even while the outputs are off
Features
Y
Switching specifications at 50 pF
Y
Switching specifications guaranteed over full tempera-
ture and VCC range
Y
Advanced oxide-isolated
ion-implanted Schottky TTL
process
Y
Functionally and pin for pin compatible with LS TTL
counterpart
Y
Improved AC performance over LS373 at approximately
half the power
Y
TRI-STATE buffer-type outputs drive bus lines directly
Connection Diagram
Dual-In-Line Package
TLF6220 – 1
Order Number DM74ALS373WM DM74ALS373N or DM74ALS373SJ
See NS Package Number M20B M20D or N20A
TRI-STATE
is a registered trademark of National Semiconductor Corporation
C1996 National Semiconductor Corporation
RRD-B30M36Printed in U S A
http
www nationalcom


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