SN54-74LS390 ON Semiconductor, SN54-74LS390 Datasheet - Page 3

• Manufacturer Part Number: SN54-74LS390
• Description: DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER
• Manufacturer: ON Semiconductor

GUARANTEED OPERATING RANGES
V CC
T A
I OH
I OL
Symbol
COUNT
(Input on CP 0 ; Q 0 CP 1 )
SN54 / 74LS390 BCD
0
1
2
3
4
5
6
7
8
9
TRUTH TABLE
Supply Voltage
Operating Ambient Temperature Range
Output Current — High
Output Current — Low
Q 3 Q 2 Q 1
H
H
L
L
L
L
L
L
L
L
OUTPUTS
H
H
H
H
L
L
L
L
L
L
H
H
H
H
L
L
L
L
L
L
Q 0
H
H
H
H
H
L
L
L
L
L
Parameter
SN54/74LS390 SN54/74LS393
SN54 / 74LS390 10 (50% @ Q 0 )
FAST AND LS TTL DATA
(Input on CP 1 , Q 3 to CP 0 )
COUNT
COUNT
0
1
2
3
4
5
6
7
8
9
SN54/ 74LS390 5
TRUTH TABLE
TRUTH TABLE
(Input on CP 1 )
0
1
2
3
4
Q 3 Q 2 Q 1
H
H
L
L
L
L
L
L
L
L
5-3
Q 3 Q 2 Q 1
H
L
L
L
L
OUTPUTS
OUTPUTS
H
H
H
H
L
L
L
L
L
L
H
H
L
L
L
54, 74
H
H
H
H
L
L
L
L
L
L
54
74
54
74
54
74
H
H
L
L
L
Q 0
H
H
H
H
H
L
L
L
L
L
4.75
– 55
Min
4.5
0
H = HIGH Voltage Level
L = LOW Voltage Level
COUNT
Typ
5.0
5.0
25
25
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
SN54 / 74LS393
TRUTH TABLE
Q 3 Q 2 Q 1
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
OUTPUTS
– 0.4
Max
5.25
125
5.5
4.0
8.0
70
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
Q 0
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
Unit
mA
mA
V
C