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SN74LS251 数据表(PDF) 2 Page - ON Semiconductor

部件名 SN74LS251
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

SN74LS251 数据表(HTML) 2 Page - ON Semiconductor

  SN74LS251 Datasheet HTML 1Page - ON Semiconductor SN74LS251 Datasheet HTML 2Page - ON Semiconductor SN74LS251 Datasheet HTML 3Page - ON Semiconductor SN74LS251 Datasheet HTML 4Page - ON Semiconductor SN74LS251 Datasheet HTML 5Page - ON Semiconductor SN74LS251 Datasheet HTML 6Page - ON Semiconductor SN74LS251 Datasheet HTML 7Page - ON Semiconductor SN74LS251 Datasheet HTML 8Page - ON Semiconductor  
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SN74LS251
http://onsemi.com
2
CONNECTION DIAGRAM DIP (TOP VIEW)
Select Inputs
Output Enable (Active LOW) Inputs
Multiplexer Inputs
Multiplexer Output
Complementary Multiplexer Output
S0 – S2
E0
I0 – I7
Z
Z
0.5 U.L.
0.5 U.L.
0.5 U.L.
65 U.L.
65 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
15 U.L.
15 U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40
mA HIGH/1.6 mA LOW.
HIGH
LOW
(Note a)
LOADING
PIN NAMES
LOGIC DIAGRAM
14
1
2
6
7
3
4
5
9
11
12
10
13
15
VCC = PIN 16
GND = PIN 8
= PIN NUMBERS
S2
S1
S0
E1
ZZ
I0
I1
I2
I3
I4
I5
I6
I7
14
13
12
11
10
9
1234
5
6
7
16
15
8
VCC
I3
I4
I5
I6
I7
S1
S0
S2
I2
I1
I0
ZZ
E0
GND



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