SN65HVD1781D

Active

Texas Instruments

SINGLE TRANSMITTER/RECEIVER RS-485 8-PIN SOIC TUBE

SN65HVD1781D

Active

Texas Instruments

SINGLE TRANSMITTER/RECEIVER RS-485 8-PIN SOIC TUBE

Description Specifications Series Pricing CAD Documents

Description

General part information

65HVD1781 Series

The device is designed to survive overvoltage faults such as direct shorts to power supplies, mis-wiring faults, connector failures, cable crushes, and tool mis-applications. It is also robust to ESD events, with high levels of protection to the human-body-model specification.

The SN65HVD1781A-Q1 combines a differential driver and a differential receiver, which operate from a single power supply. The driver differential outputs and the receiver differential inputs are connected internally to form a bus port suitable for half-duplex (two-wire bus) communication. This port features a wide common-mode voltage range, making the device suitable for multipoint applications over long cable runs. The device is characterized from –40°C to 125°C. The SN65HVD1781A-Q1 device is pin-compatible with the industry-standard SN75176 transceiver, making it a drop-in upgrade in most systems.

The device is fully compliant with ANSI TIA/EIA 485-A with a 5-V supply and can operate with a 3.3-V supply with reduced driver output voltage for low-power applications. For applications where operation is required over an extended common-mode voltage range, see the SN65HVD1785 (SLLS872) data sheet.

Technical Specifications

Parameters and characteristics for this part

Specification	SN65HVD1781D

Data Rate	1 Mbps
Duplex	Half
Mounting Type	Surface Mount
Number of Drivers	1
Number of Receivers	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Package Length	0.154 in
Package Name	8-SOIC
Package Width	3.9 mm
Protocol	RS422, RS485
Receiver Hysteresis	50 mV
Type	Transceiver
Voltage - Supply (Maximum)	5.5 V
Voltage - Supply (Minimum)	3.15 V

65HVD1781 Series

Automotive Catalog 70-V Fault-Protected RS-485 Transceivers

Part	Mounting Type	Receiver Hysteresis	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Package Name	Type	Data Rate	Duplex	Package Length	Package Width	Operating Temperature (Max)	Operating Temperature (Min)	Protocol	Number of Drivers	Number of Receivers	Grade	Qualification
Texas Instruments SN65HVD1781DR	Surface Mount	50 mV	5.5 V	3.15 V	8-SOIC	Transceiver	1 Mbps	Half	0.154 in	3.9 mm	125 °C	-40 °C	RS422 RS485	1	1
Texas Instruments SN65HVD1781D	Surface Mount	50 mV	5.5 V	3.15 V	8-SOIC	Transceiver	1 Mbps	Half	0.154 in	3.9 mm	125 °C	-40 °C	RS422 RS485	1	1
Texas Instruments SN65HVD1781P	Through Hole	50 mV	5.5 V	3.15 V	8-DIP 8-PDIP	Transceiver	1 Mbps	Half	0.3 in	7.62 mm	125 °C	-40 °C	RS422 RS485	1	1
Texas Instruments SN65HVD1781DG4	Surface Mount	50 mV	5.5 V	3.15 V	8-SOIC	Transceiver	1 Mbps	Half	0.154 in	3.9 mm	125 °C	-40 °C	RS422 RS485	1	1
Texas Instruments SN65HVD1781QDRQ1	Surface Mount	50 mV	5.5 V	3.15 V	8-SOIC	Transceiver	1 Mbps	Half	0.154 in	3.9 mm	125 °C	-40 °C	RS422 RS485	1	1	Automotive	AEC-Q100
Texas Instruments SN65HVD1781AQDRQ1	Surface Mount	50 mV	5.5 V	3.15 V	8-SOIC	Transceiver	1 Mbps	Half	0.154 in	3.9 mm	125 °C	-40 °C	RS422 RS485	1	1	Automotive	AEC-Q100

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

SN65HVD178x Fault-Protected RS-485 Transceivers With 3.3-V to 5-V Operation datasheet (Rev. H)

SN65HVD178x Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA

RS-485 Half-Duplex EVM User's Guide (Rev. C)