SN74LS323N Motorola, SN74LS323N Datasheet

SN74LS323N

Manufacturer Part Number

SN74LS323N

Description

8-BIT SHIFT/STORAGE REGISTER WITH 3-STATE OUTPUTS

Manufacturer

Motorola

Datasheet

1.SN74LS323N.pdf (5 pages)

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8-BIT SHIFT/STORAGE REGISTER

WITH 3-STATE OUTPUTS

3-state outputs. Its function is similar to the SN54 / 74LS299 with the exception

of Synchronous Reset. Parallel load inputs and flip-flop outputs are

multiplexed to minimize pin count. Separate inputs and outputs are provided

for flip-flops Q 0 and Q 7 to allow easy cascading.

parallel load. All modes are activated on the LOW-to-HIGH transition of the

Clock.

NOTES:

a) 1 TTL LOAD = 40 A HIGH/1.6 mA LOW.

b) The output LOW drive factor is 2.5 U.L for Military (54) and 5 U.L. for Commercial Temperature Ranges.

c) The output LOW drive factor is 7.5 U.L for Military (54) and 15 U.L. for Commercial Temperature Ranges.

PIN NAMES

DS 0

DS 7

I/O n

OE 1 , OE 2

Q 0 , Q 7

S 0 , S 1

The output HIGH drive factor is 25 U.L. for Military (54) and 65 U.L. for Commercial Temperature Ranges.

The SN54 / 74LS323 is an 8-Bit Universal Shift / Storage Register with

Four operation modes are possible: hold (store), shift left, shift right, and

Common I/O for Reduced Pin Count

Four Operation Modes: Shift Left, Shift Right, Parallel Load and Store

Separate Continuous Inputs and Outputs from Q 0 and Q 7 Allow Easy

Fully Synchronous Reset

3-State Outputs for Bus Oriented Applications

Input Clamp Diodes Limit High-Speed Termination Effects

ESD > 3500 Volts

Cascading

V CC

S 0

OE 1 OE 2 I/O 6 I/O 4 I/O 2 I/O 0 Q 0

S 1

DS 7 Q 7 I/O 7

CONNECTION DIAGRAM DIP (TOP VIEW)

Clock Pulse (active positive going edge) Input

Serial Data Input for Right Shift

Serial Data Input for Left Shift

Parallel Data Input or

Parallel Output (3-State) (Note c)

3-State Output Enable (active LOW) Inputs

Serial Outputs (Note b)

Mode Select Inputs

Synchronous Reset (active LOW) Input

I/O 5

I/O 3

I/O 1

SR GND

DS 0

FAST AND LS TTL DATA

NOTE:

The Flatpak version

has the same pinouts

(Connection Diagram) as

the Dual In-Line Package.

5-1

8-BIT SHIFT/STORAGE REGISTER

65 (25) U.L.

SN54/74LS323

WITH 3-STATE OUTPUTS

ORDERING INFORMATION

LOW POWER SCHOTTKY

HIGH

SN54LSXXXJ

SN74LSXXXN

SN74LSXXXDW SOIC

0.5 U.L.

1.0 U.L.

0.5 U.L.

10 U.L.

1 U.L.

LOADING (Note a)

Ceramic

Plastic

15 (7.5) U.L.

CASE 751D-03

5 (2.5) U.L.

CASE 732-03

CASE 738-03

DW SUFFIX

0.25 U.L.

CERAMIC

N SUFFIX

LOW

J SUFFIX

PLASTIC

0.5 U.L.

SOIC

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SN74LS323N Summary of contents

Page 1

SHIFT/STORAGE REGISTER WITH 3-STATE OUTPUTS The SN54 / 74LS323 is an 8-Bit Universal Shift / Storage Register with 3-state outputs. Its function is similar to the SN54 / 74LS299 with the exception of Synchronous Reset. Parallel load inputs and ...

Page 2

I/O 0 I/O 1 FUNCTIONAL DESCRIPTION The logic diagram and ...

Page 3

GUARANTEED OPERATING RANGES Symbol Parameter V CC Supply Voltage T A Operating Ambient Temperature Range I OH Output Current — High I OL Output Current — Low I OH Output Current — High I OL Output Current — Low DC ...

Page 4

AC CHARACTERISTICS ( 5.0 V) Symbol Symbol Parameter Parameter f MAX Maximum Clock Frequency t PHL Propagation Delay, Clock t PLH PHL Propagation Delay, Clock t ...

Page 5

PLH 1 OUT Figure 1 PZL V OUT 1.5 V Figure SW1 TO OUTPUT UNDER TEST ...

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