RS-232 link at 250 kbps — what the data rate buys the design
That rate covers the common UART speeds up to 115200 baud with margin, plus faster protocols like 230400 baud.
Receiver hysteresis is 300 mV, which rejects line noise on longer cable runs.

Texas Instruments MAX3232IDBR, RS-232 transceiver, full duplex, 250 kbps data rate, 3V to 5.5V supply, 2 drivers / 2 receivers, 16-SSOP package, -40°C to 85°C operating temperature.
| Parameter | Value |
|---|---|
| Type | Transceiver |
| Mounting | Surface Mount |
| Supply voltage | 3V ~ 5.5V |
| Protocol | RS232 |
| Operating temperature | -40°C~85°C |
| Duplex | Full |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Data rate | 250kbps |
| Case | 16-SSOP (0.209\", 5.30mm Width) |
| Receiver hysteresis | 300 mV |
| Number of drivers (Receivers) | 2/2 |
That rate covers the common UART speeds up to 115200 baud with margin, plus faster protocols like 230400 baud.
Receiver hysteresis is 300 mV, which rejects line noise on longer cable runs.
The MAX3232IDBR supports a data rate of 250 kbps. This is sufficient for standard UART speeds up to 115200 baud and faster protocols like 230400 baud.
The MAX3232 family includes multiple package and temperature-grade variants. For a pin-compatible drop-in, look for other MAX3232 variants in the same 16-SSOP footprint.