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Analog Devices MAX3221ECTE+ — DC-DC Power Modules
Analog Devices

MAX3221ECTE+ RS232 Transceiver, 250kbps, 1/1 Driver/Receiver

MPNMAX3221ECTE+
End of Life

Maxim Integrated MAX3221ECTE+, RS232 Transceiver, Full Duplex, 1/1 Drivers/Receivers, 250kbps Data Rate, 3V to 5.5V Supply, 16-WQFN Exposed Pad, 0°C to 70°C, Tube.

$5.19Ref. price · indicative, final on quote
MAX3221ECTE+ datasheet
Packaging16-WQFN Exposed Pad
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

MAX3221ECTE+ Technical Specifications
ParameterValue
TypeTransceiver
Mounting typeSurface Mount
Voltage3V ~ 5.5V
ProtocolRS232
Operating temperature0°C ~ 70°C
DuplexFull
PackageTube
Data rate250kbps
Case16-WQFN Exposed Pad
Receiver hysteresis500 mV
Number of drivers (Receivers)1/1

Product details

RS232 interface in a compact 16-TQFN

The Maxim Integrated MAX3221ECTE+ is a single-channel RS232 transceiver in a 16-TQFN package, handling one driver and one receiver in full-duplex mode. It is designed for serial communication links where board space is tight and the supply rail can range from 3V to 5.5V, covering both 3.3V and 5V logic domains without a separate level shifter. Data rate is rated at 250kbps. The receiver hysteresis of 500 mV helps reject noise on longer cable runs. The package is 16-TQFN (5x5 mm). Surface-mount assembly is standard.

Lifecycle and sourcing posture

The MAX3221ECTE+ carries an Active lifecycle status and is ROHS3 compliant.

Frequently asked questions

What is the difference between MAX3221ECTE+ and MAX3222?

The MAX3222 is a dual driver/receiver RS232 transceiver, whereas the MAX3221ECTE+ is a single driver/receiver. The MAX3222 is not a direct pin-compatible replacement; the choice depends on whether your design needs one or two serial channels.

Can I use MAX3221ECTE+ as a replacement for MAX3221ECA?

The MAX3221ECA is a different package variant (SSOP vs TQFN). Electrical specifications are similar, but the footprint differs. Verify the package compatibility on your board before substituting.