HD74AC138_15 Datasheet, PDF (3/12 Pages) Renesas Technology Corp – 1-of-8 Decoder/Demultiplexer

HD74AC138/HD74ACT138
1-of-8 Decoder/Demultiplexer
REJ03D0248–0200Z
(Previous ADE-205-368 (Z))
Rev.2.00
Jul.16.2004
Description
The HD74AC138/HD74ACT138 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 HD74AC138/HD74ACT138 devices or a 1-of-32 decoder using four
HD74AC138/HD74ACT138 devices and one inverter.
Features
• Demultiplexing Capability
• Multiple Input Enable for Easy Expansion
• Active LOW Mutually Exclusive Outputs
• Outputs Source/Sink 24 mA
• HD74ACT138 has TTL-Compatible Inputs
• Ordering Information: Ex. HD74AC138
Part Name
Package Type Package Code Package Abbreviation Taping Abbreviation (Quantity)
HD74AC138AP DIP-16 pin
DP-16E, -16FV P
—
HD74AC138AFPEL SOP-16 pin (JEITA) FP-16DAV
FP
EL (2,000 pcs/reel)
HD74AC138ARPEL SOP-16 pin (JEDEC) FP-16DNV
RP
EL (2,500 pcs/reel)
HD74AC138TELL TSSOP-16 pin
TTP-16DAV
T
ELL(2,000 pcs/reel)
Notes: 1. Please consult the sales office for the above package availability.
2. The packages with lead-free pins are distinguished from the conventional products by adding V at the end of
the package code.
Pin Arrangement
A0 1
A1 2
A2 3
E1 4
E2 5
E3 6
O7 7
GND 8
(Top view)
16 VCC
15 O0
14 O1
13 O2
12 O3
11 O4
10 O5
9 O6
Rev.2.00, Jul.16.2004, page 1 of 9