dm74ls323wm National Semiconductor Corporation, dm74ls323wm Datasheet

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dm74ls323wm

Manufacturer Part Number
dm74ls323wm
Description
8-bit Universal Shift/storage Register With Synchronous Reset And Common I/o Pins
Manufacturer
National Semiconductor Corporation
Datasheet
C 1995 National Semiconductor Corporation
DM54LS323 DM74LS323
8-Bit Universal Shift Storage Register
with Synchronous Reset and Common I O Pins
General Description
The ’LS323 is an 8-bit universal shift storage register with
TRI-STATE
with the exception of Synchronous Reset Parallel load in-
puts and flip-flop outputs are multiplexed to minimize pin
count Separate inputs and outputs are provided for flip-
flops Q0 and Q7 to allow easy cascading Four operation
modes are possible hold (store) shift left shift right and
parallel load All modes are activated on the LOW-to-HIGH
transition of the Clock
Connection Diagram
TRI-STATE is a registered trademark of National Semiconductor Corporation
outputs Its function is similar to the ’LS299
Order Number DM54LS323J DM54LS323W DM74LS323WM or DM74LS323N
TL F 9829
Pin Names
CP
D
D
S0 S1
SR
OE1 OE2
I O0 – I O7 Parallel Data Inputs or TRI-STATE
Q0 Q7
S
S
See NS Package Number J20A M20B N20A or W20A
0
7
Clock Pulse Input (Active Rising Edge)
Serial Data Input for Right Shift
Serial Data Input for Left Shift
Mode Select Inputs
Synchronous Reset Input (Active LOW)
TRI-STATE Output Enable Inputs (Active LOW)
Parallel Outputs
Serial Outputs
Dual-In-Line Package
Description
Features
Y
Y
Y
Y
Y
Common I O for reduced pin count
Four operation modes shift left shift right parallel load
and store
Separate continuous inputs and outputs from Q0 and
Q7 allow easy cascading
Fully synchronous reset
TRI-STATE outputs for bus oriented applications
TL F 9829 – 1
RRD-B30M115 Printed in U S A
April 1992

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dm74ls323wm Summary of contents

Page 1

... Q0 and Q7 to allow easy cascading Four operation modes are possible hold (store) shift left shift right and parallel load All modes are activated on the LOW-to-HIGH transition of the Clock Connection Diagram Order Number DM54LS323J DM54LS323W DM74LS323WM or DM74LS323N See NS Package Number J20A M20B N20A or W20A Pin Names CP D ...

Page 2

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 Operating Free Air Temperature Range DM54LS DM74LS Storage Temperature Range ...

Page 3

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

Page 4

Functional Description The ’LS323 contains eight edge-triggered D-type flip-flops and the interstage logic necessary to perform synchronous reset shift left shift right parallel load and hold operations The type of operation is determined by S0 and S1 as shown in ...

Page 5

Logic Diagram 5 ...

Page 6

... Physical Dimensions inches (millimeters) 20-Lead Ceramic Dual-In-Line Package (J) 20-Lead Wide Small Outline Molded Package (M) Order Number DM54LS323J NS Package Number J20A Order Number DM74LS323WM NS Package Number M20B 6 ...

Page 7

Physical Dimensions inches (millimeters) (Continued) 20-Lead Molded Dual-In-Line Package (N) Order Number DM74LS323N NS Package Number N20A 7 ...

Page 8

Physical Dimensions inches (millimeters) (Continued) 20-Lead Ceramic Flat Package (W) 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 THE PRESIDENT OF NATIONAL SEMICONDUCTOR ...

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