UM3232EESE
Union Semiconductor International Limited
Needs validationmedium risk
UM3232EESE is a lower-speed RS232 2/2 candidate in matching 16-SOIC.
Best Alternatives to MAX3232CSE+T
MAX3232CSE+T is a 1Mbps RS232 2/2 transceiver in 16-SOIC. Lower-speed same-role parts may work only after pinout and capacitor review.
AI replacement insight
Electrical riskmedium
Speed derating and cap network need review.
Package risklow
Kept parts show 16-SOIC.
Firmware risklow
Protocol remains RS232.
Sourcing riskmedium
Use catalog status and lifecycle checks.
Can it be replaced directly?
No confirmed pin-compatible replacement is proven from the provided fields.
Best replacement path
Review ADM3202ARNZ first for lower-speed RS232 use; keep MAX3232 for 1Mbps designs.
Main risk
Candidate data rates are below the 1Mbps target and pinout is not verified.
Recommended alternatives
1Alternative comparison matrix
| Feature / factor | MAX3232CSE+T | ADM3202ARNZ | UM3232EESE | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Interface | RS232 2/2, 1Mbps | RS232 2/2, 460kbps | RS232 2/2, 250kbps | RS232 2/2, 460kbps / RS232 2/2, 250kbps — Speed derated; UM3232EESE: Speed derated | |
| Voltage | 3.0-5.5V | 3-5.5V | 3-5.5V | 3-5.5V — Supply aligns; UM3232EESE: Supply aligns | |
| Package | 16-SOIC 3.90mm | 16-SOIC 3.90mm | 16-SOIC 3.90mm | 16-SOIC 3.90mm — Form matches; UM3232EESE: Form matches | |
| Pinout | MAX3232 pinout | not checked | not checked | not checked — Needs FAE check; UM3232EESE: Needs FAE check | |
| Temperature | 0 to 70C | -40 to 85C | -40 to 85C | -40 to 85C — Wider range; UM3232EESE: Wider range |
Application & sourcing insights
Questions & answers
ADM3202ARNZ is the closest kept candidate, but only for designs that can accept 460kbps and pass pinout review.