54F 74F138 1-of-8 Decoder Demultiplexer
November 1994
54F 74F138
1-of-8 Decoder Demultiplexer
General Description
The 鈥橣138 is a high-speed 1-of-8 decoder demultiplexer
This device is ideally suited for high-speed bipolar memory
chip select address decoding The multiple input enables
allow parallel expansion to a 1-of-24 decoder using just
three 鈥橣138 devices or a 1-of-32 decoder using four 鈥橣138
devices and one inverter
Features
Y
Y
Y
Y
Demultiplexing capability
Multiple input enable for easy expansion
Active LOW mutually exclusive outputs
Guaranteed 4000V minimum ESD protection
Commercial
74F138PC
Military
Package
Number
N16E
Package Description
16-Lead (0 300 Wide) Molded Dual-In-Line
16-Lead Ceramic Dual-In-Line
16-Lead (0 150 Wide) Molded Small Outline JEDEC
16-Lead (0 300 Wide) Molded Small Outline EIAJ
16-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier Type C
54F138DM (Note 2)
74F138SC (Note 1)
74F138SJ (Note 1)
54F138FM (Note 2)
54F138LM (Note 2)
J16A
M16A
M16D
W16A
E20A
Note 1
Devices also available in 13 reel Use suffix
e
SCX and SJX
Note 2
Military grade device with environmental and burn-in processing Use suffix
e
DMQB FMQB and LMQB
Logic Symbols
Connection Diagrams
Pin Assignment for DIP
SOIC and Flatpak
Pin Assignment
for LCC
TL F 9478鈥?
IEEE IEC
TL F 9478 鈥?1
TL F 9478 鈥?2
TL F 9478鈥?
TRI-STATE is a registered trademark of National Semiconductor Corporation
C
1995 National Semiconductor Corporation
TL F 9478
RRD-B30M75 Printed in U S A