HD74HC4518 Datasheet, PDF (2/9 Pages) Hitachi Semiconductor – Dual BCD Use Converters/Dual Binary Up Converters

HD74HC4518, HD74HC4520
Pin Arrangement
Clock A 1
Enable A 2
Q0 A 3
Q1 A 4
Q2 A 5
Q3 A 6
Reset A 7
GND 8
16 VCC
15 Reset B
C
R
Q0
Q3 14 Q3 B
Q1
Q2 13 Q2 B
Q2
Q1 12 Q1 B
Q3
Q0 11 Q0 B
R
C
10 Enable B
9 Clock B
(Top view)
Block Diagram
HD74HC4518
Q0
Q1
Q2
Q3
Reset
Enable
Clock
D
Q
C
Q
R
D
Q
C
Q
R
D
Q
C
Q
R
D
Q
C
Q
R
Rev.2.00, Mar 30, 2006 page 2 of 8