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74LS273 数据表(PDF) 2 Page - ON Semiconductor

部件名 74LS273
功能描述  LOW POWER SCHOTTKY
PDF  8 Pages
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制造商  ONSEMI [ON Semiconductor]
网页  http://www.onsemi.com
标志 ONSEMI - ON Semiconductor

74LS273 数据表(HTML) 2 Page - ON Semiconductor

  74LS273 Datasheet HTML 1Page - ON Semiconductor 74LS273 Datasheet HTML 2Page - ON Semiconductor 74LS273 Datasheet HTML 3Page - ON Semiconductor 74LS273 Datasheet HTML 4Page - ON Semiconductor 74LS273 Datasheet HTML 5Page - ON Semiconductor 74LS273 Datasheet HTML 6Page - ON Semiconductor 74LS273 Datasheet HTML 7Page - ON Semiconductor 74LS273 Datasheet HTML 8Page - ON Semiconductor  
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SN74LS273
http://onsemi.com
2
18
17
16
15
14
13
12
3
4
5
6
7
20
19
8
VCC
MR
Q7
D7
D6
Q6
D5
Q5
D4
Q0
D0
D1
Q1
Q2
D2
D3
910
Q3 GND
12
11
Q4
CP
CONNECTION DIAGRAM DIP (TOP VIEW)
Clock (Active HIGH Going Edge) Input
Data Inputs
Master Reset (Active LOW) Input
Register Outputs
CP
D0 – D7
MR
Q0 – Q7
0.5 U.L.
0.5 U.L.
0.5 U.L.
10 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
5 U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40
mA HIGH/1.6 mA LOW.
HIGH
LOW
(Note a)
LOADING
PIN NAMES
TRUTH TABLE
MR
CP
Dx
Qx
L
X
X
L
H
H
H
H
L
L
H = HIGH Logic Level
L = LOW Logic Level
X = Immaterial
LOGIC DIAGRAM
CP
MR
D0
D1
D2
D3
D4
D5
D6
D7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
CP D
CD Q
CP D
CD Q
CP D
CD Q
CP D
CD Q
CP D
CD Q
CP D
CD Q
CP D
CD Q
CP D
CD Q
14
1
26
7
3
8
4
5
9
11
12
13
15
VCC = PIN 20
GND = PIN 10
= PIN NUMBERS
17
18
16
19



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