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Texas Instruments SN65HVD20P — Interface & Transceivers

SN65HVD20P RS-485/RS-422 Transceiver, 25 Mbps, 8-DIP

MPNSN65HVD20P
Active

Texas Instruments SN65HVD20P RS-422/RS-485 transceiver, half-duplex, 1/1 driver/receiver, 25 Mbps data rate, 4.5 V to 5.5 V supply, -40°C to 85°C, 8-DIP through-hole package.

$6.5600Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN65HVD20P specifications
ParameterValue
TypeTransceiver
MountingThrough Hole
Supply voltage4.5V ~ 5.5V
ProtocolRS422, RS485
Operating temperature-40°C~85°C
DuplexHalf
PackageTube
Data rate25Mbps
Case8-DIP (0.300\", 7.62mm)
Receiver hysteresis130 mV
Number of drivers (Receivers)1/1

Product details

Through-hole DIP package — still the right call for rugged backplanes

This part comes in an 8-pin DIP package (8-PDIP, 0.300" body width) with through-hole mounting. For a maintenance-access panel or a high-vibration environment where a connectorized module gets swapped in the field, the DIP package is mechanically more robust than a surface-mount SOIC. It also simplifies hand-rework during prototype builds or small-batch production. The 1/1 driver/receiver count matches the classic RS-485 node topology — one driver, one receiver per chip, with the half-duplex bus contention handled by the microcontroller's DE pin.

Active lifecycle — no last-time-buy clock ticking

The base product number 65HVD20 covers the family, and the 'P' suffix identifies the DIP package variant.

Frequently asked questions

Is SN65HVD20P a direct replacement for SN65HVD22P?

The SN65HVD20P and SN65HVD22P share the same 8-DIP pinout and base function, but the SN65HVD22P is a 1 Mbps variant while the SN65HVD20P is rated for 25 Mbps. If your bus runs at 1 Mbps or slower, the SN65HVD22P is a pin-compatible alternative; for higher data rates, the SN65HVD20P is the correct choice.