74ACT138
74ACT138 is Dual 1-of-8 Decoder/Demultiplexer manufactured by onsemi.
- Part of the 74AC138 comparator family.
- Part of the 74AC138 comparator family.
Description
The AC138/ACT138 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 AC138/ACT138 devices or a 1- of- 32 decoder using four AC138/ACT138 devices and one inverter
Features
- ICC Reduced by 50%
- Demultiplexing Capability
- Multiple Input Enable for Easy Expansion
- Active LOW Mutually Exclusive Outputs
- Outputs Source/Sink 24 m A
- ACT138 Has TTL patible Inputs
- These are Pb- Free Devices
VCC O0 O1 O2 O3 O4 O5 O6 16 15 14 13 12 11 10 9
DATA SHEET .onsemi.
16 1
16 1
MARKING DIAGRAMS
16 SOIC- 16 CASE 751BG
XXXXXX AWLYWW
TSSOP- 16 CASE 948AH
XXX XXX ALYWG
XXX = Specific Device Code
= Assembly Location
WL or L = Wafer Lot
= Year
WW or W = Work Week
G or G = Pb- Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information on page 8 of this data sheet.
12345678 A0 A1 A2 E1 E2 E3 O7 GND
Figure 1. Pinout: 16- Lead Packages Conductors (Top View)
A0 A1 A2
E1 E2 E3
O0 O1 O2 O3 O4 O5 O6 O7
Figure 2. Logic Symbol
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