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Texas Instruments SN65HVD11SHKQ — Interface & Transceivers

Texas Instruments SN65HVD11SHKQ RS-485/422 Transceiver

MPNSN65HVD11SHKQ
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Texas Instruments SN65HVD11SHKQ, RS485/RS422 Transceiver, Half Duplex, 1/1 Drivers/Receivers, 10Mbps, 3V to 3.6V, -55°C to 210°C, 8-CFP (Ceramic Flatpack).

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN65HVD11SHKQ specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage3V ~ 3.6V
ProtocolRS422, RS485
Operating temperature-55°C~210°C
DuplexHalf
PackageTube
Data rate10Mbps
Case8-CSOIC (0.220\", 5.65mm Width)
Receiver hysteresis41 mV
Number of drivers (Receivers)1/1

Product details

Ceramic flatpack for extreme environments

The 8-CFP footprint (0.220" width, 5.65 mm body) is a ceramic hermetic package, not a standard SOIC; the reflow profile and board layout differ from a plastic SOIC-8, and the part is typically soldered with high-temperature solder or conductive epoxy.

The 10 Mbps data rate supports Profibus, Modbus RTU, and other industrial fieldbuses running at their maximum bit rate. Receiver hysteresis of 41 mV provides noise margin on long cable runs, reducing the chance of bit errors from ground shifts or coupled interference. The single driver and single receiver confirm half-duplex operation on a two-wire bus; for full-duplex four-wire RS-422 you would need two of these or a different part.

This is a standard catalog item, not a special or obsolete military part.

Frequently asked questions

Does SN65HVD11SHKQ support full-duplex communication?

No, it is a half-duplex transceiver with one driver and one receiver. For full-duplex RS-422 you would need two devices or a different part number.

What is the difference between SN65HVD11SHKQ and SN65HVD11D?

The SN65HVD11SHKQ is the ceramic flatpack (8-CFP) version rated for -55°C to 210°C. The electrical specs (10 Mbps, 3.3 V supply, 41 mV hysteresis) are the same, but the package and temperature grade are completely different — they are not drop-in replacements on the same board.

Is SN65HVD11SHKQ compatible with 5V logic?

The logic inputs are not 5 V tolerant unless the datasheet explicitly states otherwise — use a level shifter if interfacing with a 5 V controller.