
Functional Block Diagram
TTL
2
TTL
3
TTL
4
TTL
5
TTL
6
TTL
7
TTL
8
HCTS541MS
VDD
P
P
P
N
P
18
N
N
N
OE
17
TTL
P
16
=
P
N
15
VDD
14
13
12
TTL
1
OE
19
TTL
TRUTH TABLE
INPUTS
OE1
OE2
An
OUTPUTS
L
L
H
H
H
X
X
Z
X
H
X
Z
L
L
L
L
H = High Voltage Level, L = Low Voltage Level, X = Immaterial, Z = High Impedance
Spec Number 518630
683