Datasheet

2
Functional Diagram
Pinouts
CD54HC534, CD54HCT534
(CERDIP)
CD74HC534, CD74HCT534
(PDIP)
TOP VIEW
CD54HC564, CD54HCT564
(CERDIP)
CD74HC564, CD74HCT564
(PDIP, SOIC)
TOP VIEW
TRUTH TABLE
INPUTS OUTPUT
OE CP Dn Qn
L ↑ HL
L ↑ LH
L L X No Change
HXXZ
H = High Level (Steady State)
L = Low Level (Steady State)
X= Don’t Care
↑= Transition from Low to High Level
Z = High Impedance State
11
12
13
14
15
16
17
18
20
19
10
9
8
7
6
5
4
3
2
1
OE
Q0
D0
D1
Q1
Q2
D3
D2
Q3
GND
V
CC
D7
D6
Q6
Q7
Q5
D5
D4
Q4
CP 11
12
13
14
15
16
17
18
20
19
10
9
8
7
6
5
4
3
2
1
OE
D0
D1
D2
D3
D4
D6
D5
D7
GND
V
CC
Q1
Q2
Q3
Q0
Q4
Q5
Q6
Q7
CP
Q
0
D
0
CP
OE
Q
1
D
1
Q
2
D
2
Q
3
D
3
Q
4
D
4
Q
5
D
5
Q
6
D
6
O
7
D
7
D
Q
D
Q
D
Q
D
Q
D
Q
D
Q
D
Q
D
Q
CP CP CP CP CP CP CP CP
CD54/74HC534, CD54/74HCT534, CD54/74HC564, CD54/74HCT564