74ACT323 Fairchild Semiconductor, 74ACT323 Datasheet

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74ACT323

Manufacturer Part Number
74ACT323
Description
8-Bit Universal Shift/Storage Register with Synchronous Reset and Common I/O Pins
Manufacturer
Fairchild Semiconductor
Datasheet
© 1999 Fairchild Semiconductor Corporation
74ACT323
8-Bit Universal Shift/Storage Register with
Synchronous Reset and Common I/O Pins
General Description
The ACT323 is an 8-bit universal shift/storage register with
3-STATE outputs. Parallel load inputs and flip-flop outputs
are multiplexed to minimize pin count. Separate serial
inputs and outputs are provided for Q
easy cascading. Four operation modes are possible: hold
(store), shift left, shift right and parallel load.
Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbols
FACT
Order Number
74ACT323PC
is a trademark of Fairchild Semiconductor Corporation.
Package Number
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
0
and Q
DS009787.prf
7
to allow
Features
Connection Diagram
Pin Descriptions
I
Common parallel I/O for reduced pin count
Additional serial inputs and outputs for expansion
Four operating modes: shift left, shift right, load and
store
3-STATE outputs for bus-oriented applications
Outputs source/sink 24 mA
TTL-compatible inputs
DS
DS
S
OE
I/O
CC
CP
SR
Q
Pin Name
0
0
, S
0
0
7
1
, Q
and I
–I/O
, OE
Package Description
1
7
7
OZ
2
reduced by 50%
Clock Pulse Input
Serial Data Input for Right Shift
Serial Data Input for Left Shift
Mode Select Inputs
Synchronous Reset Input
3-STATE Output Enable Inputs
Multiplexed Parallel Data Inputs or
Serial Outputs
3-STATE Parallel Data Outputs
Pin Assignment
for DIP
June 1988
Revised October 1998
Description
www.fairchildsemi.com

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74ACT323 Summary of contents

Page 1

... Ordering Code: Order Number Package Number 74ACT323PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. ...

Page 2

Functional Description The ACT323 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 S and the ...

Page 3

Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. 3 www.fairchildsemi.com ...

Page 4

Absolute Maximum Ratings Supply Voltage ( Input Diode Current ( 0. 0. Input Voltage ( Output Diode Current ( ...

Page 5

AC Electrical Characteristics Symbol Parameter f Maximum Input Frequency max t Propagation Delay PLH Propagation Delay PHL Propagation Delay PLH CP to I/O n ...

Page 6

Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL ...

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