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SN74HC138DR Breakout
IC DECODER 3:8 LINE 16-SOIC 15NS
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Design a Custom BoardAbout This Component
3-to-8 line decoder/demultiplexer in 16-SOIC package with active-low outputs. Operates from 2V to 6V with 15ns typical propagation delay and ±4mA output drive. Features three enable inputs for cascading and minimal power consumption, ideal for memory decoding and data routing applications.
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 | SN74HC138DR |
| Package | SOIC-16 (3.9×9.9mm) |
| Pin Count | 16 |
| Circuit | 1 x 3:8 |
| Type | Decoder/Demultiplexer |
| Voltage - Supply | 2V ~ 6V |
What's Included
BILL OF MATERIALS
- 1x SN74HC138DR 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
WIDTH
< 0.9" (straddles breadboard)
PITCH
2.54mm standard
SOLDER
Lead-free, reflow assembled
FINISH
FR4, lead-free HASL