SN75HVD08

Features:

· Operates With a 3-V to 5.5-V Supply
· Consumes Less Than 90 mW Quiescent Power
· Open-Circuit, Short Circuit, and Idle-Bus Failsafe Receiver
· 1/8th Unit-Load (up to 256 nodes on the bus)
· Bus-Pin ESD Protection Exceeds 16 kV HBM
· Driver Output Voltage Slew-Rate Limited for Optimum Signal Quality at 10 Mbps
· Electrically Compatible With ANSI TIA/EIA-485 Standard


Application

· Data Transmission With Remote Stations Powered From the Host
· Isolated Multipoint Data Buses
· Industrial Process Control Networks
· Point-of-Sale Networks
· Electric Utility Metering


Pinout




Specifications

			A, B, and GND
Supply voltage, VCC			-0.3 V to 6 V
Voltage range at A or B			-9 V to 14 V
Input voltage range at D, DE, R or RE			-0.5 V to VCC + 0.5 V
Voltage input range, transient pulse, A and B, through 100 W			-25 V to 25 V
Electrostatic discharge	Human Body Model(3)	A, B, and GND	±16 kV
		All pins	±4 kV
	Charged-Device Model(4)	All pins	1 kV
Continuous power dissipation			See Dissipation Rating Table
Storage temperature range			−65°C to 150°C

Description

The SN75HVD08 combines a 3-state differential line driver and differential line receiver designed for balanced data transmission and interoperation with ANSI TIA/EIA-485-A and ISO-8482E standard-compliant devices.

The wide supply voltage range and low quiescent current requirements allow the SN75HVD08s to operate from a 5-V power bus in the cable with as much as a 2-V line voltage drop. Busing power in the cable can alleviate the need for isolated power to be generated at each connection of a ground-isolated bus.

The SN75HVD08 driver differential outputs and receiver differential inputs connect internally to form a differential in-put/output (I/O) bus port that is designed to offer minimum loading to the bus whenever the driver is disabled or not powered. The drivers and receivers have active-high and active-low enables respectively, which can be externally connected together to func- tion as a direction control.