
Maxim Integrated Products, Inc.
Cross-vendor alternative with a wider operating temperature range and higher data rate.
The MAX3232CPWR is a popular 3V to 5.5V RS-232 transceiver in a TSSOP-16 package. Several cross-vendor alternatives exist, but require careful review of electrical specifications like ESD rating and operating temperature.
Some alternatives have lower ESD ratings.
All viable alternatives match the TSSOP-16 package.
Yes, parts like MAX3232EEUE+T are functionally similar and share the same package, but pinout and key parameters like ESD rating must be verified.
MAX3232EEUE+T offers an upgrade in temperature range and is from a major manufacturer, making it a strong candidate.
The main risk is using a part with lower ESD protection or an unverified pinout, which could lead to device failure or board redesign.

Maxim Integrated Products, Inc.
Cross-vendor alternative with a wider operating temperature range and higher data rate.
| Feature / factor | MAX3232CPWR | MAX3232EEUE+T | UT3232G-P16-R | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | TSSOP-16 | TSSOP-16 | TSSOP-16 | TSSOP-16 — Package matches.; UT3232G-P16-R: Package matches. | |
| Voltage | 3 V to 5.5 V | 3V to 5.5V | 3.0V ~ 5.5V | 3V to 5.5V / 3.0V ~ 5.5V — Supply voltage range matches.; UT3232G-P16-R: Supply voltage range matches. | |
| Temperature | 0°C to 70°C | -40°C to +85°C | 0°C ~ 70°C | -40°C to +85°C / 0°C ~ 70°C — Wider industrial temperature range.; UT3232G-P16-R: Operating temperature range matches. | |
| Interface | 250 kbit/s | up to 1Mbps | ±8kV (HBM) | up to 1Mbps / ±8kV (HBM) — Higher maximum data rate.; UT3232G-P16-R: Lower ESD protection rating. |
The MAX3232EEUE+T is a strong alternative, offering a wider temperature range and higher data rate capability. However, pinout compatibility should always be confirmed from the datasheets.