Texas Instruments
Texas Instruments MAX3222IDWR, RS-232 transceiver, full duplex, 2 drivers / 2 receivers, 250 kbps data rate, 3V to 5.5V supply, -40°C to 85°C, 20-SOIC wide package.
MOQ 1 · Tape & Reel (TR); Cut Tape (CT) · RoHS · EIA-481 · DAP/DDP · T/T
| Parameter / Attribute | Specification / 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 | 20-SOIC (0.295\", 7.50mm Width) |
| Receiver hysteresis | 300 mV |
| Number of drivers (Receivers) | 2/2 |
Rated at 250 kbps, this transceiver handles 115200 baud with substantial margin — about 2x the symbol rate needed. The 300 mV receiver hysteresis provides noise rejection on longer cable runs, which is where RS-232 links typically pick up ground offset and crosstalk.
The 20-SOIC wide-body (7.50 mm width) is a common footprint; the 1.27 mm pitch makes hand-assembly and inspection straightforward.
