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Analog Devices MAX3241CAI+ — Logic ICs
Analog Devices

MAX3241CAI+ RS-232 Transceiver, 235 kbps, 3/5 Drivers

MPNMAX3241CAI+
End of Life

Maxim Integrated MAX3241CAI+, RS-232 transceiver, full duplex, 235 kbps data rate, 3 drivers / 5 receivers, 3V to 5.5V supply, 28-SSOP package, 0°C to 70°C.

$11.05Ref. price · indicative, final on quote
MAX3241CAI+ datasheet
Packaging28-SSOP (0.209", 5.30mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

MAX3241CAI+ Technical Specifications
ParameterValue
TypeTransceiver
Mounting typeSurface Mount
Voltage3V ~ 5.5V
ProtocolRS232
Operating temperature0°C ~ 70°C
DuplexFull
PackageTube
Data rate235Kbps
Case28-SSOP (0.209\", 5.30mm Width)
Receiver hysteresis300 mV
Number of drivers (Receivers)3/5

Product details

RS-232 transceiver with 3 drivers, 5 receivers — 235 kbps ceiling

The Maxim Integrated MAX3241CAI+ is a full-duplex RS-232 transceiver packing three drivers and five receivers into a 28-SSOP package. Supply range spans 3V to 5.5V, so it works in both legacy 5V and modern 3.3V logic systems without a separate rail converter.

300 mV receiver hysteresis — noise margin on long cables

The receiver hysteresis is specified at 300 mV, which helps reject noise picked up on longer RS-232 cable runs or in electrically noisy environments like an industrial control cabinet. That hysteresis value is on the higher side for this class, meaning cleaner signal recovery when the cable is routed near motor drives or switching power supplies.

Frequently asked questions

Does MAX3241CAI+ work with 5V logic?

Yes. The supply voltage range is 3V to 5.5V, so it operates directly from a 5V rail. The RS-232 driver outputs swing to the supply level, and the receiver inputs tolerate the same range, making it compatible with 5V UARTs without level translation.

What is the data rate of MAX3241CAI+?

The maximum data rate is 235 kbps. That is sufficient for standard RS-232 applications up to 115.2 kbps with margin, but not for high-speed serial protocols that require 1 Mbps or more.

Does MAX3241CAI+ require external capacitors?

The evidence does not specify charge-pump capacitor requirements. Most Maxim RS-232 transceivers in this family need four external 0.1 µF to 1 µF capacitors for the internal charge pump to generate the ±5.5V driver supply. Verify the exact capacitor values and configuration from the full datasheet before finalizing the BOM.