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Texas Instruments MAX3222IDBRE4 — Interface & Transceivers

MAX3222IDBRE4 RS-232 Transceiver, 250 kbps, 20-SSOP

MPNMAX3222IDBRE4
End of Life

Texas Instruments MAX3222IDBRE4, RS-232 Transceiver, Full Duplex, 250 kbps, 3V–5.5V, -40°C–85°C, 20-SSOP.

Texas Instruments MAX3222IDBRE4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX3222IDBRE4 specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage3V ~ 5.5V
ProtocolRS232
Operating temperature-40°C~85°C
DuplexFull
PackageTape & Reel (TR)
Data rate250kbps
Case20-SSOP (0.209\", 5.30mm Width)
Receiver hysteresis300 mV
Number of drivers (Receivers)2/2

Product details

250 kbps data rate — enough for most RS-232 links

At 250 kbps this transceiver covers the standard RS-232 baud rates up to 115200 and then some. If your design runs 921600 baud or higher, you need a faster part — but for terminal servers, industrial HMI panels, and legacy peripheral ports, 250 kbps is the sweet spot. The receiver hysteresis of 300 mV cleans up noisy lines common in factory environments.

Package and mounting — 20-SSOP, surface-mount only

No through-hole variant exists in this order code. If your rework station is set up for SSOP, the pitch is standard — just watch the soldering profile for the lead-free finish.

Frequently asked questions

Is MAX3222IDBRE4 a direct replacement for MAX3222IDBR?

The base product number is MAX3222, and the suffix IDBRE4 vs IDBR typically indicates a different packaging or environmental compliance variant. Without a cross-reference from the manufacturer, assume the pinout and function are identical, but verify the specific suffix differences — particularly RoHS status — before committing the BOM.