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SN74LS90 Datasheet(PDF) 4 Page - ON Semiconductor

Part No. SN74LS90
Description  4-BIT BINARY COUNTER
Download  7 Pages
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

SN74LS90 Datasheet(HTML) 4 Page - ON Semiconductor

  SN74LS90 Datasheet HTML 1Page - ON Semiconductor SN74LS90 Datasheet HTML 2Page - ON Semiconductor SN74LS90 Datasheet HTML 3Page - ON Semiconductor SN74LS90 Datasheet HTML 4Page - ON Semiconductor SN74LS90 Datasheet HTML 5Page - ON Semiconductor SN74LS90 Datasheet HTML 6Page - ON Semiconductor SN74LS90 Datasheet HTML 7Page - ON Semiconductor  
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SN74LS90
http://onsemi.com
4
LS90
MODE SELECTION
RESET / SET INPUTS
OUTPUTS
MR1 MR2 MS1 MS2
Q0 Q1
Q2 Q3
H
H
X
L
X
L
X
H
H
X
X
L
X
L
L
X
H
L
X
X
L
L
L
H
L
L
L
L
L
L
L
L
H
Count
Count
Count
Count
X
L
H
X
L
L
X
H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
LS92 AND LS93
MODE SELECTION
RESET
INPUTS
OUTPUTS
MR1 MR2
Q0 Q1
Q2 Q3
H
L
H
L
H
H
L
L
LL
LL
Count
Count
Count
H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
LS90
BCD COUNT SEQUENCE
COUNT
OUTPUT
Q0 Q1
Q2 Q3
0
1
2
3
4
5
6
7
8
9
L
H
L
H
L
H
L
H
L
H
L
L
H
H
L
L
H
H
L
L
L
L
L
L
H
H
H
H
L
L
L
L
L
L
L
L
L
L
H
H
NOTE: Output Q0 is connected to Input
CP1 for BCD count.
LS92
TRUTH TABLE
COUNT
OUTPUT
Q0 Q1
Q2 Q3
0
1
2
3
4
5
6
7
8
9
10
11
L
H
L
H
L
H
L
H
L
H
L
H
L
L
H
H
L
L
L
L
H
H
L
L
L
L
L
L
H
H
L
L
L
L
H
H
L
L
L
L
L
L
H
H
H
H
H
H
NOTE: Output Q0 is connected to Input
CP1.
LS93
TRUTH TABLE
COUNT
OUTPUT
Q0 Q1
Q2 Q3
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
NOTE: Output Q0 is connected to Input
CP1.
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
54
74
4.5
4.75
5.0
5.0
5.5
5.25
V
TA
Operating Ambient Temperature Range
54
74
−55
0
25
25
125
70
°C
IOH
Output Current — High
54, 74
−0.4
mA
IOL
Output Current — Low
54
74
4.0
8.0
mA


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