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Texas Instruments MAX3222CPW — Interface & Transceivers

MAX3222CPW RS-232 Transceiver, 250 kbps, 20-TSSOP

MPNMAX3222CPW
Obsolete

Texas Instruments MAX3222CPW RS-232 transceiver, full-duplex, 2/2 drivers/receivers, 250 kbps data rate, 3V to 5.5V supply, 20-TSSOP package, 0°C to 70°C.

$2.6600Ref. price · indicative, final on quote
Texas Instruments MAX3222CPW datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

MAX3222CPW specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage3V ~ 5.5V
ProtocolRS232
Operating temperature0°C~70°C
DuplexFull
PackageTube
Data rate250kbps
Case20-TSSOP (0.173\", 4.40mm Width)
Receiver hysteresis300 mV
Number of drivers (Receivers)2/2

Product details

RS-232 transceiver for legacy serial links — what the 250 kbps rating means

The 250 kbps ceiling means it comfortably supports 115200 baud with margin, but it won't keep up with high-speed RS-232 variants pushing 1 Mbps or more.

Obsolete — plan your BOM around a broker or second source

For existing BOM lines, the supply risk is real: availability tightens as surplus stock dries up, so securing inventory through a broker with verified stock is the move.

Package and supply — what the 20-TSSOP and 3V–5.5V range tell you

The 20-TSSOP body measures 4.40 mm wide, a common footprint for multi-channel serial transceivers. Receiver hysteresis is specified at 300 mV, which gives clean edge detection on noisy RS-232 lines without external schmitt triggers.

Frequently asked questions

Where can I buy MAX3222CPW?

The MAX3222CPW is obsolete from the factory, but we source it through independent distribution. Submit an RFQ — we confirm availability and current pricing at quote time, no commitment needed.

Is MAX3222CPW obsolete?

Yes, Texas Instruments lists the MAX3222CPW as obsolete. No factory production remains; supply is limited to surplus and broker-channel stock.

What is the data rate of MAX3222CPW?

The MAX3222CPW supports data rates up to 250 kbps, suitable for standard UART baud rates up to 115200 bps with margin.

What is the equivalent of MAX3222CPW?

No official replacement is listed by Texas Instruments. For a current-production alternative in the same 20-TSSOP footprint, look at the MAX3222E series or other RS-232 transceivers from TI with similar pinout — verify compatibility against your specific BOM requirements.