Skip to main content
Texas Instruments MAX232DRG4 — Interface & Transceivers

MAX232DRG4 RS232 Transceiver, 120 Kbps, 2/2 Driver, 16-SOIC

MPNMAX232DRG4
End of Life

Texas Instruments MAX232DRG4 RS232 transceiver, full-duplex, 120 Kbps data rate, 2/2 drivers/receivers, 4.5V to 5.5V supply, 16-SOIC package, 0°C to 70°C.

$1.2500Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX232DRG4 specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
ProtocolRS232
Operating temperature0°C~70°C
DuplexFull
PackageTape & Reel (TR); Cut Tape (CT)
Data rate120Kbps
Case16-SOIC (0.154\", 3.90mm Width)
Receiver hysteresis500 mV
Number of drivers (Receivers)2/2

Product details

RS232 transceiver in a 16-SOIC — what the 120 Kbps and 5V-only rail mean for your BOM

The 120 Kbps data rate is the ceiling for serial throughput; if your UART runs at 115200 baud standard, you have margin, but designs targeting 250 Kbps or 1 Mbps need a faster transceiver family.

For procurement, this means no last-time-buy exposure and no forced redesign cycle.

Frequently asked questions

What is the data rate of MAX232DRG4?

The data rate is 120 Kbps. This supports standard 115200 baud UART communication with margin, but does not reach higher rates like 250 Kbps or 1 Mbps.

Does MAX232DRG4 need external capacitors?

Yes, like all MAX232-family devices, it requires external charge-pump capacitors for the voltage doubler and inverter that generate the RS232 voltage levels. The exact values are specified in the datasheet.