Texas Instruments MAX3222EIPWR, RS-232 transceiver, full duplex, 2/2 drivers/receivers, 500 kbps data rate, 3V to 5.5V supply, -40°C to 85°C, 20-TSSOP package.
| 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 | 500kbps |
| Case | 20-TSSOP (0.173\", 4.40mm Width) |
| Receiver hysteresis | 300 mV |
| Number of drivers (Receivers) | 2/2 |
With a supply range of 3V to 5.5V, this part works on a 3.3V rail directly — no extra regulator needed. The receiver hysteresis of 300 mV cleans up noisy RS-232 lines, which matters when the cable runs through a plant floor with motor drives nearby.
ROHS3 compliant, which keeps it clear of the RoHS exemption deadlines.
Yes. The supply range covers 3V to 5.5V, so it runs directly from a 3.3V rail and interfaces with 3.3V UARTs without level translation.
Within the same family, the MAX3222EUPWR shares the same driver/receiver count and data rate but comes in a 20-TSSOP package with a different pinout orientation — verify the footprint before swapping. For a direct drop-in, the MAX3222EC adds ±15 kV ESD protection on the bus pins.