The MAX3222EIDBR: The 2/2 driver/receiver count gives you two full RS-232 channels in one package, enough for a basic DTE-to-DCE link or a two-port interface on a single PCB. The 500 kbps data rate is fast enough for most industrial UART applications (115200 baud is typical), but if you need higher throughput, you will be looking at a different transceiver family. Receiver hysteresis of 300 mV provides noise immunity on the incoming serial lines, which matters in electrically noisy environments like motor drives or relay panels.
MAX3222EIDBR RS-232 Transceiver, 500 kbps, 20-SSOP
MPNMAX3222EIDBR
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Texas Instruments MAX3222EIDBR RS-232 transceiver, full duplex, 2/2 drivers/receivers, 500 kbps data rate, 3V to 5.5V supply, 20-SSOP package, -40°C to 85°C.
$2.6100Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| 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-SSOP (0.209\", 5.30mm Width) |
| Receiver hysteresis | 300 mV |
| Number of drivers (Receivers) | 2/2 |
Product details
Frequently asked questions
Is MAX3222EIDBR equivalent to MAX3222EIDB?
The MAX3222EIDBR and MAX3222EIDB share the same base product number (MAX3222) and are functionally identical. The 'R' suffix typically indicates a different packaging or reel option — the electrical specifications (2/2 drivers/receivers, 500 kbps, 3V-5.5V supply) are the same. Verify the package code if footprint compatibility is critical.
What is the data rate of MAX3222EIDBR?
The MAX3222EIDBR supports a data rate of 500 kbps, which is sufficient for standard RS-232 applications up to 115200 baud and beyond.