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Texas Instruments SN65HVD485EP — Interface & Transceivers

SN65HVD485EP RS-485 Transceiver, 10 Mbps, 8-PDIP

MPNSN65HVD485EP
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Texas Instruments SN65HVD485EP RS-485/RS-422 transceiver, half-duplex, 1/1 driver/receiver, 10 Mbps data rate, 4.5 V to 5.5 V supply, 30 mV receiver hysteresis, -40°C to 85°C, 8-PDIP package.

$2.8500Ref. price · indicative, final on quote
Texas Instruments SN65HVD485EP datasheet (PDF)
Packaging8-DIP (0.300", 7.62mm)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN65HVD485EP specifications
ParameterValue
TypeTransceiver
MountingThrough Hole
Supply voltage4.5V ~ 5.5V
ProtocolRS422, RS485
Operating temperature-40°C~85°C
DuplexHalf
PackageTube
Data rate10Mbps
Case8-DIP (0.300\", 7.62mm)
Receiver hysteresis30 mV
Number of drivers (Receivers)1/1

Product details

10 Mbps half-duplex RS-485 in a through-hole DIP

The 30 mV of receiver hysteresis provides built-in noise margin on long cable runs without external fail-safe biasing resistors. Typical applications include industrial control networks, building automation, motor drive interfaces, and any RS-485 bus where the designer wants a through-hole package for prototyping or vibration-resistant socketing.

If your system uses 3.3 V logic, the receiver output is 5 V tolerant but the driver input thresholds are referenced to the 5 V supply; a level shifter or open-drain buffer is needed between a 3.3 V UART and the DI pin.

For dual-sourcing resilience, the base product number 65HVD485 covers several package and temperature variants; the 'EP' suffix denotes the extended temperature range in the PDIP package.

Frequently asked questions

What is the typical application for SN65HVD485EP?

Typical applications include industrial control networks, building automation, motor drive interfaces, and any RS-485 bus requiring a half-duplex transceiver at 10 Mbps over a single twisted pair. The through-hole PDIP package makes it a common choice for prototyping, breadboard testing, and retrofit of legacy 8-pin DIP sockets.

Is SN65HVD485EP compatible with 3.3 V logic?

The driver input thresholds are referenced to the 5 V rail, so a 3.3 V UART output will not reliably drive the DI pin without a level shifter. The receiver output (RO) is 5 V CMOS and will drive a 3.3 V input if the 3.3 V device is 5 V-tolerant, but check the absolute maximum ratings of the receiving device.

What is the difference between SN65HVD485EP and SN65HVD485E?

The SN65HVD485EP is the through-hole PDIP version of the SN65HVD485E, which is typically offered in an SOIC surface-mount package. The 'P' suffix in the TI numbering convention indicates the PDIP package. The choice is purely a board-assembly and footprint decision.