TL/F/10209
9321/DM9321
Dual
1-of-4
Decoder
June 1989
9321/DM9321
Dual 1-of-4 Decoder
General Description
The 9321 consists of two independent multipurpose decod-
ers, each designed to accept two inputs and provide four
mutually exclusive outputs. In addition an active LOW en-
able input, which gives demultiplexing capability, is provided
for each decoder.
Features
Y
Multifunction capability
Y
Mutually exclusive outputs
Y
Demultiplexing capability
Y
Active low enable for each decoder
Connection Diagram
Dual-In-Line Package
TL/F/10209–1
Order Number 9321DMQB, 9321FMQB or DM9321N
See NS Package Number J16A, N16E or W16A
Logic Symbol
TL/F/10209–2
V
CC
e Pin 16
GND e Pin 8
Pin Names Description
Ea, Eb Enable Inputs (Active LOW)
A0a, A1a, A0b, A1b Address Inputs
O0a–O3a
Decoder Outputs (Active LOW)
O0b–O3b (
C
1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.