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SN54LS90 Datasheet(PDF) 2 Page - Motorola, Inc

Part # SN54LS90
Description  DECADE COUNTER; DIVIDE-BY-TWELVE COUNTER; 4-BIT BINARY COUNTER
PDF  6 Pages
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Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

SN54LS90 Datasheet(HTML) 2 Page - Motorola, Inc

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5-91
FAST AND LS TTL DATA
SN54/74LS90
• SN54/74LS92 • SN54/74LS93
LOGIC DIAGRAM
MS1
MS2
MR1
MR2
CP0
CP1
Q0
Q1
Q2
Q3
MR1
CP0
CP1
Q0
Q1
Q2
Q3
MR2
LS90
MR1
CP0
CP1
Q0
Q1
Q2
Q3
MR2
SD
J
CP
K
Q
Q
CD
SD
R
CP
S
Q
Q
CD
SD
J
CP
K
Q
Q
CD
SD
J
CP
K
Q
Q
CD
J
CP
K
Q
Q
CD
J
CP
K
Q
Q
CD
J
CP
K
Q
Q
CD
J
CP
K
Q
Q
CD
J
CP
K
Q
Q
CD
J
CP
K
Q
Q
CD
J
CP
K
Q
Q
CD
J
CP
K
Q
Q
CD
14
11
12
1
2
6
7
9
3
8
14
13
12
11
10
9
1
2
3
4
5
6
8
7
CP0
NC
Q0
Q3
GND
Q1
Q2
CP1
MR1
MR2
NC
VCC
MS1
MS2
CONNECTION DIAGRAM
DIP (TOP VIEW)
NC = NO INTERNAL CONNECTION
NOTE:
The Flatpak version has the same
pinouts (Connection Diagram) as
the Dual In-Line Package.
14
1
6
7
12
11
9
8
LOGIC DIAGRAM
LS92
14
13
12
11
10
9
1
2
3
4
5
6
8
7
CP0
NC
Q0
Q1
GND
Q2
Q3
CP1
NC
NC
NC
VCC
MR1
MR2
CONNECTION DIAGRAM
DIP (TOP VIEW)
NC = NO INTERNAL CONNECTION
NOTE:
The Flatpak version has the same
pinouts (Connection Diagram) as
the Dual In-Line Package.
LOGIC DIAGRAM
LS93
VCC = PIN 5
GND = PIN 10
= PIN NUMBERS
VCC = PIN 5
GND = PIN 10
= PIN NUMBERS
VCC = PIN 5
GND = PIN 10
= PIN NUMBERS
14
1
2
3
12
9
8
11
14
13
12
11
10
9
1
2
3
4
5
6
8
7
CP0
NC
Q0
Q3
GND
Q1
Q2
CP1
MR1
MR2
NC
VCC
NC
NC
CONNECTION DIAGRAM
DIP (TOP VIEW)
NC = NO INTERNAL CONNECTION
NOTE:
The Flatpak version has the same
pinouts (Connection Diagram) as
the Dual In-Line Package.



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