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Texas Instruments SN75176BPSRG4 — Interface & Transceivers

SN75176BPSRG4 RS485/RS422 Transceiver, Half-Duplex, 5V

MPNSN75176BPSRG4
End of Life

Texas Instruments SN75176BPSRG4, RS422/RS485 half-duplex transceiver, 1/1 driver/receiver, 4.75V–5.25V supply, 50 mV hysteresis, 0°C–70°C, 8-SOIC package.

Texas Instruments SN75176BPSRG4 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN75176BPSRG4 specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Voltage4.75V ~ 5.25V
ProtocolRS422, RS485
Operating temperature0°C~70°C
DuplexHalf
PackageTape & Reel (TR); Cut Tape (CT)
Case8-SOIC (0.209\", 5.30mm Width)
Receiver hysteresis50 mV
Number of drivers (Receivers)1/1

Product details

Half-duplex RS485 transceiver for 5 V industrial buses

The 50 mV receiver hysteresis provides a clean noise margin on differential lines without external biasing, which simplifies the bill of materials for point-to-point or multi-drop RS485 links.

If the design sees ambient below freezing or above 70°C, an industrial-temperature variant (e.g., SN65HVD3082E or SN75176B with -I suffix) would be the safer call.

Supplied in an 8-SOIC package (0.209", 5.30 mm width) with surface-mount termination. The supplier device package is 8-SO.

Frequently asked questions

Is SN75176BPSRG4 lead-free and RoHS compliant?

Yes, the SN75176BPSRG4 is lead-free and RoHS compliant. The suffix 'G4' in the order code denotes TI's green/RoHS-compliant plating option.

What is the difference between SN75176BPSRG4 and SN75176BDR?

Both are functionally identical half-duplex RS485/RS422 transceivers with the same supply range and temperature grade, but the footprint differs — the 'PSR' suffix signals the wider SO package. Verify the PCB land pattern before substituting one for the other.

Can SN75176BPSRG4 be used for RS422 half-duplex communication?

Yes. The part is specified for both RS422 and RS485 protocols and operates in half-duplex mode, which is the standard wiring for RS422 multidrop or point-to-point links. The single driver and single receiver pair directly to the bus.

Can SN75176BPSRG4 be used with 3.3V logic?

No. Driving them with 3.3 V logic may not guarantee valid logic-high levels. For 3.3 V RS485 designs, consider a part like the SN65HVD3082E or a 3.3 V transceiver from the SN65HVD family.