Texas Instruments MAX3222EIDW, RS-232 Transceiver, Full Duplex, 2/2 Drivers/Receivers, 500 kbps, 3V to 5.5V, -40°C to 85°C, 20-SOIC.
| Parameter | Value |
|---|---|
| Type | Transceiver |
| Mounting | Surface Mount |
| Supply voltage | 3V ~ 5.5V |
| Protocol | RS232 |
| Operating temperature | -40°C~85°C |
| Duplex | Full |
| Package | Tube |
| Data rate | 500kbps |
| Case | 20-SOIC (0.295\", 7.50mm Width) |
| Receiver hysteresis | 300 mV |
| Number of drivers (Receivers) | 2/2 |
The receiver hysteresis of 300 mV provides noise immunity on longer cable runs.
The 3V to 5.5V supply range lets it run from a 3.3V rail in low-power designs or a 5V rail in legacy backplanes without a level shifter.
The MAX3222EIDW and MAX3222EIPW share the same RS-232 transceiver core, 2/2 driver/receiver count, 500 kbps data rate, and 3V to 5.5V supply range. The difference is the package: the EIDW variant comes in a 20-SOIC (0.295", 7.50mm width) body, while the EIPW is a 20-TSSOP. The SOIC package is easier to hand-solder and inspect, whereas the TSSOP saves board area for dense layouts.