參數(shù)資料
型號: SN74LS323N
廠商: MOTOROLA INC
元件分類: 通用總線功能
英文描述: 8-BIT SHIFT/STORAGE REGISTER WITH 3-STATE OUTPUTS
中文描述: LS SERIES, 8-BIT BIDIRECTIONAL PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PDIP20
封裝: PLASTIC, DIP-20
文件頁數(shù): 1/5頁
文件大?。?/td> 143K
代理商: SN74LS323N
5-1
FAST AND LS TTL DATA
8-BIT 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 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.
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
3-State Outputs for Bus Oriented Applications
Input Clamp Diodes Limit High-Speed Termination Effects
ESD > 3500 Volts
CONNECTION DIAGRAM DIP
(TOP VIEW)
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
18
17
16
15
14
13
1
2
3
4
5
6
7
20
19
8
VCC
S0
S1
DS7
Q7
I/O7
I/O3
I/O5
I/O1
OE1OE2
I/O6 I/O4
I/O2
I/O0
Q0
9
10
GND
SR
12
11
CP
DS0
PIN NAMES
LOADING
(Note a)
HIGH
LOW
CP
DS0
DS7
I/On
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
0.5 U.L.
0.5 U.L.
0.5 U.L.
1.0 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
0.5 U.L.
15 (7.5) U.L.
0.25 U.L.
5 (2.5) U.L.
65 (25) U.L.
0.5 U.L.
10 U.L.
1 U.L.
0.5 U.L.
OE1, OE2
Q0, Q7
S0, S1
SR
0.25 U.L.
NOTES:
a) 1 TTL LOAD = 40
μ
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.
The output HIGH drive factor is 25 U.L. for Military (54) and 65 U.L. for Commercial Temperature Ranges.
SN54/74LS323
8-BIT SHIFT/STORAGE REGISTER
WITH 3-STATE OUTPUTS
LOW POWER SCHOTTKY
ORDERING INFORMATION
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXDW SOIC
Ceramic
Plastic
20
1
J SUFFIX
CERAMIC
CASE 732-03
20
1
N SUFFIX
PLASTIC
CASE 738-03
20
1
DW SUFFIX
SOIC
CASE 751D-03
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