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Texas Instruments MAX3232ECDB — Interface & Transceivers

MAX3232ECDB RS-232 Transceiver, 250 kbps, 16-SSOP, Obsolete

MPNMAX3232ECDB
Obsolete

Texas Instruments MAX3232ECDB, RS-232 transceiver, full duplex, 250 kbps data rate, 3V to 5.5V supply, 2/2 drivers/receivers, 16-SSOP package, 0°C to 70°C operating temperature.

$0.9600Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

MAX3232ECDB specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage3V ~ 5.5V
ProtocolRS232
Operating temperature0°C~70°C
DuplexFull
PackageTube
Data rate250kbps
Case16-SSOP (0.209\", 5.30mm Width)
Receiver hysteresis300 mV
Number of drivers (Receivers)2/2

Product details

What this RS-232 transceiver does

The 300 mV receiver hysteresis cleans up noisy lines typical of long cable runs or industrial backplanes.

The wide supply range (3V to 5.5V) means it can sit on a mixed-voltage board without a dedicated regulator — handy when you are retrofitting a legacy 5V RS-232 port into a 3.3V system.

Frequently asked questions

What is the replacement for MAX3232ECDB?

No official replacement part number is recorded in the lifecycle data. The closest active alternatives are other MAX3232 variants (such as MAX3232E or MAX3232IPW) in the same 16-pin SSOP or TSSOP footprints. Verify pin compatibility and electrical specs against your design before substituting.

Can MAX3232ECDB be used with a 5V supply?

Yes, the MAX3232ECDB is specified for a supply range of 3V to 5.5V, so it works directly on a 5V rail without any external regulation.