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Texas Instruments MAX3232IDRG4 — Interface & Transceivers

MAX3232IDRG4 RS-232 Transceiver, 250kbps, 16-SOIC, Last Buy

MPNMAX3232IDRG4
Last Buy

Texas Instruments MAX3232IDRG4, RS-232 Transceiver, Full Duplex, 2/2 Drivers/Receivers, 250kbps Data Rate, 3V~5.5V Supply, -40°C~85°C, 16-SOIC Package.

$1.2750Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

MAX3232IDRG4 specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage3V ~ 5.5V
ProtocolRS232
Operating temperature-40°C~85°C
DuplexFull
PackageTape & Reel (TR); Cut Tape (CT)
Data rate250kbps
Case16-SOIC (0.154\", 3.90mm Width)
Receiver hysteresis300 mV
Number of drivers (Receivers)2/2

Product details

Its 3V to 5.5V supply range means it runs from a single 3.3V rail or legacy 5V logic without a separate level translator — the charge-pump generates the RS-232 bipolar swing internally. Data rate hits 250kbps, enough for most serial console, modem, and industrial terminal links. The 300 mV receiver hysteresis cleans up noisy lines from long cable runs.

That means TI has announced end-of-life for this specific reeled variant — the last order window is open but closing. If this part is on your active BOM, the procurement move is to secure final stock or qualify a replacement before the LTB cutoff. The base product number MAX3232 covers a family of pin-compatible options; a shift to the non-G4 suffix or a different tape/reel code may extend availability, but verify current status with your distributor at quote time.

Frequently asked questions

Is MAX3232IDRG4 still available or obsolete?

The MAX3232IDRG4 is in Last Buy status — TI has flagged it for discontinuation. If you need a long-term supply, plan to qualify a replacement or secure final stock now.

What is the replacement for MAX3232IDRG4?

TI's base product number MAX3232 covers multiple suffix variants. A direct pin-compatible replacement within the same family would share the 2/2 driver/receiver count, 3V to 5.5V supply, and 16-SOIC package. The specific replacement depends on the tape/reel and temperature grade your BOM requires — confirm the exact alternate order code with your distributor at quote time.

Can I use MAX3232IDRG4 in a 5V system?

Yes — the supply range covers 3V to 5.5V, so it runs directly from a 5V rail without any external regulator. The internal charge-pump still generates the RS-232 bipolar levels from a single 5V supply.