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UA9638CDR Breakout
IC TRANSCEIVER 2/0 8SOIC RS232
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Design a Custom BoardAbout This Component
Dual-channel RS-232 line driver and receiver IC in 8-pin SOIC package. Converts between TTL/CMOS logic levels and RS-232 voltage levels (±12V typically). Commonly used for serial communication interfaces in microcontroller and FPGA applications, providing robust signal conditioning for longer-distance RS-232 communication over standard serial cables.
Package: SOIC-8 (3.9×4.9mm) · 8 pins
Why does this need a breakout?
An 8-pin SOIC with 1.27mm pitch is too fine for breadboards and hand-soldering without a microscope. A breakout board routes these pins to standard 0.1" headers, enabling rapid prototyping and reliable connections for op-amps, transceivers, and small power MOSFETs without requiring reflow equipment.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Texas Instruments |
| Part Number | UA9638CDR |
| Package | SOIC-8 (3.9×4.9mm) |
| Pin Count | 8 |
| Number of Drivers/Receivers | 2/0 |
| Protocol | RS422, RS485 |
| Type | Driver |
| Voltage - Supply | 4.75V ~ 5.25V |
What's Included
BILL OF MATERIALS
- 1x UA9638CDR 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