MC74ACT139
MC74ACT139 is Dual 1-of-4 Decoder/Demultiplexer manufactured by onsemi.
Features
- Multifunctional Capability
- Two pletely Independent 1- of- 4 Decoders
- Active LOW Mutually Exclusive Outputs
- Outputs Source/Sink 24 m A
- ′ACT139 Has TTL patible Inputs
- These are Pb- Free Devices
VCC Eb A0b A1b O0b O1b O2b O3b 16 15 14 13 12 11 10 9
12345678 Ea A0a A1a O0a O1a O2a O3a GND
Figure 1. Pinout: 16- Lead Packages Conductors (Top View)
PIN ASSIGNMENT
PIN FUNCTION
A0, A1 E
Address Inputs Enable Inputs
O0- O3
Outputs
TRUTH TABLE
Inputs
E A0...
