Specification	SN65HVD21MDREPG4

Data Rate	5 MBd
Duplex	Half
Mounting Type	Surface Mount
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-55 °C
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Protocol	RS422, RS485
Receiver Hysteresis	130 mV
Supplier Device Package	8-SOIC
Type	Transceiver
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V

SN65HVD21M-EP Series

Enhanced Product Extended Common-Mode Rs-485 Transceivers

Part	Type	Mounting Type	Protocol	Operating Temperature [Max]	Operating Temperature [Min]	Duplex	Voltage - Supply [Min]	Voltage - Supply [Max]	Data Rate	Supplier Device Package	Receiver Hysteresis	Package / Case	Package / Case [y]	Package / Case [x]
Texas Instruments SN65HVD21AD	Transceiver	Surface Mount	RS422 RS485	85 °C	-40 °C	Half	4.5 V	5.5 V	5 MBd	8-SOIC	130 mV	8-SOIC	3.9 mm	0.154 in
Texas Instruments SN65HVD21ADR	Transceiver	Surface Mount	RS422 RS485	85 °C	-40 °C	Half	4.5 V	5.5 V	5 MBd	8-SOIC	130 mV	8-SOIC	3.9 mm	0.154 in
Texas Instruments SN65HVD21D	Transceiver	Surface Mount	RS422 RS485	85 °C	-40 °C	Half	4.5 V	5.5 V	5 MBd	8-SOIC	130 mV	8-SOIC	3.9 mm	0.154 in
Texas Instruments SN65HVD21MDREPG4	Transceiver	Surface Mount	RS422 RS485	125 °C	-55 °C	Half	4.5 V	5.5 V	5 MBd	8-SOIC	130 mV	8-SOIC	3.9 mm	0.154 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	2500	$ 5.18
Texas Instruments	LARGE T&R	1	$ 8.34
		100	$ 6.80
		250	$ 5.35
		1000	$ 4.53

Description

General part information

SN65HVD21M-EP Series

The SN65HVD21M offers performance exceeding typical RS-485 devices. In addition to meeting all requirements of the TIA/EIA-485-A standard, the HVD2x family operates over an extended range of common-mode voltage, and has features such as high ESD protection, wide receiver hysteresis, and failsafe operation. This family of devices is ideally suited for long-cable networks, and other applications where the environment is too harsh for ordinary transceivers.

The SN65HVD21M is designed for bidirectional data transmission on multipoint twisted-pair cables. Example applications are digital motor controllers, remote sensors and terminals, industrial process control, security stations, and environmental control systems.

The SN65HVD21M combines a 3-state differential driver and a differential receiver, which operates from a single 5-V power supply. The driver differential outputs and the receiver differential inputs are connected internally to form a differential bus port that offers minimum loading to the bus. This port features an extended common-mode voltage range making the device suitable for multipoint applications over long cable runs.

Documents

Technical documentation and resources

Extended Common-Mode RS-485 Transceivers datasheet

Data sheet