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Analog Devices MAX3221EAE+ — Analog & Data Acquisition
Analog Devices

MAX3221EAE+ RS-232 Transceiver, 235 kbps, 3V–5.5V, 16-SSOP

MPNMAX3221EAE+
End of Life

Maxim Integrated MAX3221EAE+, RS-232 Transceiver, Full Duplex, 1 Driver / 1 Receiver, 235 kbps Data Rate, 3V to 5.5V Supply, -40°C to 85°C, 16-SSOP Package.

$6.28Ref. price · indicative, final on quote
MAX3221EAE+ datasheet
Packaging16-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.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

MAX3221EAE+ Technical Specifications
ParameterValue
TypeTransceiver
Mounting typeSurface Mount
Voltage3V ~ 5.5V
ProtocolRS232
Operating temperature-40°C ~ 85°C
DuplexFull
PackageTube
Data rate235Kbps
Case16-SSOP (0.209\", 5.30mm Width)
Receiver hysteresis300 mV
Number of drivers (Receivers)1/1

Product details

RS-232 interface in a compact 16-SSOP

The MAX3221EAE+ from Maxim Integrated is a single-channel RS-232 transceiver in a 16-SSOP package, delivering one driver and one receiver in full-duplex configuration. It operates from a 3V to 5.5V supply rail, covering both 3.3V and 5V logic domains without a separate level shifter. The part supports a 235 kbps data rate, sufficient for legacy serial ports, industrial terminal links, and configuration interfaces on embedded controllers. Industrial temperature rating (-40°C to 85°C) qualifies it for factory-floor, outdoor telecom, and engine-bay environments where commercial-grade parts would drift out of spec.

Supply flexibility and receiver hysteresis

The 3V to 5.5V supply range means the MAX3221EAE+ can be dropped into a 3.3V-only BOM or a legacy 5V RS-232 port without a regulator change. The receiver hysteresis of 300 mV provides noise immunity on longer cable runs, reducing bit errors in electrically noisy environments like motor drives or switching power supplies.

Active production — no LTB concern

The part is ROHS3 compliant.

Frequently asked questions

What is the data rate of MAX3221EAE+?

The MAX3221EAE+ supports a data rate of 235 kbps, which covers standard RS-232 baud rates up to 230.4 kbaud. For higher-speed serial links (e.g., 1 Mbps RS-232), consider a transceiver rated for that rate.