dm74ls374 National Semiconductor Corporation, dm74ls374 Datasheet

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dm74ls374

Manufacturer Part Number
dm74ls374
Description
Tri-statee Octal D-type Transparent Latches And Edge-triggered Flip-flops
Manufacturer
National Semiconductor Corporation
Datasheet

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C 1995 National Semiconductor Corporation
DM54LS373 DM74LS373
DM54LS374 DM74LS374
TRI-STATE Octal D-Type Transparent
Latches and Edge-Triggered Flip-Flops
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 I O ports bidirectional
bus drivers and working registers
Connection Diagrams
TRI-STATE is a registered trademark of National Semiconductor Corp
TL F 6431
Dual-In-Line Packages
’LS373
’LS374
(Continued)
Features
Y
Y
Y
Y
Y
Choice of 8 latches or 8 D-type flip-flops in a single
package
TRI-STATE bus-driving outputs
Full parallel-access for loading
Buffered control inputs
P-N-P inputs reduce D-C loading on data lines
TL F 6431 – 1
TL F 6431 – 2
See NS Package Number
See NS Package Number
J20A M20B N20A or
J20A M20B N20A or
DM74LS374WM or
DM74LS373N or
DM74LS373WM
Order Number
DM54LS373W
Order Number
DM54LS374W
DM54LS373J
DM54LS374J
DM74LS374N
RRD-B30M105 Printed in U S A
W20A
W20A
May 1992

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dm74ls374 Summary of contents

Page 1

... DM54LS373 DM74LS373 DM54LS374 DM74LS374 TRI-STATE Octal D-Type Transparent Latches and Edge-Triggered Flip-Flops 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 ...

Page 2

General Description (Continued) The eight latches of the DM54 74LS373 are transparent D- type latches meaning that while the enable (G) is high the Q outputs will follow the data (D) inputs When the enable is taken low the output ...

Page 3

Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage Input Voltage Storage Temperature Range b Operating Free Air Temperature Range DM54LS b DM74LS Recommended Operating ...

Page 4

... Clock High 15 Clock Low 125 b 4 667X C 150 pF Units e L Min Max DM74LS374 Units Min Nom Max ...

Page 5

Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted) Symbol Parameter V Input Clamp Voltage High Level Output Voltage Low Level Output Voltage ...

Page 6

Physical Dimensions inches (millimeters) 20-Lead Ceramic Dual-In-Line Package (J) Order Number DM54LS373J or DM54LS374J NS Package Number J20A 6 ...

Page 7

... Physical Dimensions inches (millimeters) (Continued) 20-Lead Wide Small Outline Molded Package (M) Order Number DM74LS373WM or DM74LS374WM 20-Lead Molded Dual-In-Line Package (N) Order Number DM74LS373N and DM74LS374N NS Package Number M20B NS Package Number N20A 7 ...

Page 8

Physical Dimensions inches (millimeters) (Continued) 20-Lead Ceramic Flat Package (W) Order Number DM54LS373W or DM54LS374W LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF ...

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