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SN74HCT139DR Breakout
IC DECODER 1OF4 3-TO-8V 16-SOIC
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Design a Custom BoardAbout This Component
Dual 1-of-4 decoder/demultiplexer in 16-SOIC package. Accepts 2-bit binary inputs and provides 4 mutually exclusive outputs. HCT logic with 3V-6V supply tolerance and TTL-compatible inputs. Commonly used for address decoding, output selection, and logic signal routing in digital circuits.
Package: SOIC-16 (3.9×9.9mm) · 16 pins
Why does this need a breakout?
The 1.27mm pin pitch on this 16-pin package makes hand-soldering impractical and breadboard mounting impossible. A breakout board brings the pins to standard 2.54mm spacing, enabling quick prototyping of RS-232/RS-485 transceivers, ADCs, and line drivers without requiring surface-mount soldering skills or PCB fabrication.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Texas Instruments |
| Part Number | SN74HCT139DR |
| Package | SOIC-16 (3.9×9.9mm) |
| Pin Count | 16 |
| Circuit | 1 x 2:4 |
| Type | Decoder/Demultiplexer |
| Voltage - Supply | 4.5V ~ 5.5V |
| Voltage Supply Source | Single Supply |
What's Included
BILL OF MATERIALS
- 1x SN74HCT139DR soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS