Skip to main content
Texas Instruments MAX3232CDWG4 — Interface & Transceivers

MAX3232CDWG4 RS-232 Transceiver, 250 kbps, 3V–5.5V

MPNMAX3232CDWG4
End of Life

Texas Instruments MAX3232CDWG4 RS-232 transceiver, full duplex, 2 drivers / 2 receivers, 250 kbps data rate, 3V to 5.5V supply, 16-SOIC package, 0°C to 70°C operating temperature.

$6.2100Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX3232CDWG4 specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage3V ~ 5.5V
ProtocolRS232
Operating temperature0°C~70°C
DuplexFull
PackageTube
Data rate250kbps
Case16-SOIC (0.295\", 7.50mm Width)
Receiver hysteresis300 mV
Number of drivers (Receivers)2/2

Product details

RS-232 transceiver with a wide supply net

The 300 mV receiver hysteresis keeps noise on longer cable runs from causing false start bits — useful in industrial panels or point-of-sale terminals where the cable leaves the cabinet.

Supply voltage — 3V to 5.5V covers both worlds

The wide supply range is the headline feature here. It works with 3.3V logic natively — no extra regulator or level translator — and also accepts 5V for legacy UARTs or mixed-voltage backplanes. That makes it a drop-in for designs migrating from 5V to 3.3V without a board spin.

Data rate — 250 kbps is enough for most serial links

At 250 kbps, this transceiver comfortably handles standard UART speeds up to 115200 baud and then some. It is not built for high-speed RS-232 like 1 Mbps links, but for the vast majority of terminal, sensor, and control interfaces 250 kbps is more than adequate.

Frequently asked questions

Does MAX3232CDWG4 work with 5V logic?

Yes. The 3V to 5.5V supply range includes 5V, so it interfaces directly with 5V UARTs and microcontrollers.