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SN54LS190 Datasheet(PDF) 2 Page - Motorola, Inc

Part No. SN54LS190
Description  PRESETTABLE BCD/DECADE UP/DOWN COUNTERS PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS
Download  10 Pages
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Maker  MOTOROLA [Motorola, Inc]
Homepage  http://www.freescale.com
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SN54LS190 Datasheet(HTML) 2 Page - Motorola, Inc

 
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FAST AND LS TTL DATA
SN54/74LS190
• SN54/74LS191
STATE DIAGRAMS
UP:
TC = Q0 ⋅ Q3 ⋅ (U/D)
DOWN: TC = Q0 ⋅ Q1 ⋅ Q2 ⋅ Q3 ⋅ (U/D)
LS190
LS191
UP:
TC = Q0 ⋅ Q1 ⋅ Q2 ⋅ Q3 ⋅ (U/D)
DOWN: TC = Q0 ⋅ Q1 ⋅ Q2 ⋅ Q3 ⋅ (U/D)
LS190
LS191
COUNT UP
COUNT DOWN
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
DECADE COUNTER
LS190
CP
P0
P1
P2
P3
U/D
CE
PL
RC TC
Q0
Q1
Q2
Q3
J CLOCK K
PRESET CLEAR
Q
Q
J CLOCK K
PRESET CLEAR
Q
Q
J CLOCK K
PRESET CLEAR
Q
Q
J CLOCK K
PRESET CLEAR
Q
Q
14
1
2
6
7
3
4
5
9
11
12
10
13
15
LOGIC DIAGRAMS
VCC = PIN 16
GND = PIN 8
= PIN NUMBERS


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