MC74HC390A Motorola, MC74HC390A Datasheet - Page 6

• Manufacturer Part Number: MC74HC390A
• Description: Dual 4-Stage Binary Ripple Counter
• Manufacturer: Motorola

MOTOROLA
MC54/74HC390A
CLOCK A
RESET
Q A
Q B
Q C
Q D
0
1
2
CLOCK A
CLOCK B
RESET
3
4
4, 12
2, 14
1, 15
EXPANDED LOGIC DIAGRAM
5
(Q A Connected to Clock B)
TIMING DIAGRAM
6
7
D
D
D
D
6
C
C
C
C
R
R
R
R
8
Q
Q
Q
Q
Q
Q
Q
9
0
1
3, 13
6, 10
5, 11
7, 9
Q A
Q B
Q C
Q D
2
High–Speed CMOS Logic Data
3
4
5
DL129 — Rev 6
6