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Texas Instruments SN75176AP — Interface & Transceivers

SN75176AP RS-485/RS-422 Transceiver, Half-Duplex, 8-DIP

MPNSN75176AP
Active

Texas Instruments SN75176AP, RS-422/RS-485 half-duplex transceiver, 1 driver / 1 receiver, 4.75V–5.25V supply, 50 mV hysteresis, 0°C to 70°C, 8-DIP through-hole package.

$1.9600Ref. price · indicative, final on quote
Texas Instruments SN75176AP datasheet (PDF)
Packaging8-DIP (0.300", 7.62mm)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN75176AP specifications
ParameterValue
TypeTransceiver
MountingThrough Hole
Supply voltage4.75V ~ 5.25V
ProtocolRS422, RS485
Operating temperature0°C~70°C
DuplexHalf
PackageTube
Case8-DIP (0.300\", 7.62mm)
Receiver hysteresis50 mV
Number of drivers (Receivers)1/1

Product details

The TI SN75176AP is a half-duplex transceiver for RS-422 and RS-485 serial buses, packing one driver and one receiver into an 8-pin DIP package. It runs on a single 5V supply (4.75V to 5.25V) and includes 50 mV of receiver hysteresis for noise immunity on differential lines.

Active lifecycle — still a current-production part

ROHS3 compliant.

Through-hole DIP — field-swappable without a rework station

The 8-DIP package (0.300" wide, 7.62 mm pitch) is socket-friendly. On a customer site you can pull the old one with a chip puller and seat a new SN75176AP in seconds — no hot air, no solder wick, no lab bench. Keep a few in the field kit for RS-485 bus repairs on PLCs, VFDs, or serial gateway boards.

5V supply — straight into legacy logic rails

The 4.75V to 5.25V supply range means this transceiver mates directly with 5V TTL or CMOS logic without level shifters. The receiver outputs are 5V-compatible, and the driver inputs present a standard TTL load. If your design has moved to 3.3V or lower, you will need a different transceiver or a voltage translator — this part is strictly a 5V-rail component.

Frequently asked questions

Is SN75176AP compatible with 5V logic?

Yes, the driver inputs and receiver outputs are 5V TTL/CMOS compatible. No level translation is needed when interfacing with 5V logic families.

What is the difference between SN75176AP and SN75176B?

The SN75176B is a later revision with improved ESD protection and typically tighter parametric limits. The SN75176AP is the original commercial-grade DIP variant. Both are half-duplex RS-485 transceivers with the same pinout and basic function, but the B version is preferred for new designs where available.