SN75HVD08_08 Datasheet, PDF (1/19 Pages) Texas Instruments – WIDE SUPPLY RANGE RS-485 TRANSCEIVER

SN75HVD08, SN65HVD08
www.ti.com
SLLS550C – NOVEMBER 2002 – REVISED JULY 2006
WIDE SUPPLY RANGE RS-485 TRANSCEIVER
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
• 1/8^th 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
APPLICATIONS
• Data Transmission With Remote Stations
Powered From the Host
• Isolated Multipoint Data Buses
• Industrial Process Control Networks
• Point-of-Sale Networks
• Electric Utility Metering
DESCRIPTION
The SN65HVD08 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 SN65HVD08s 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 driver differential outputs and receiver
differential inputs connect internally to form a
differential input/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 function as a direction control.
D or P PACKAGE
(TOP VIEW)
R
1
RE
2
DE
3
D
4
8
V_CC
7B
6A
5 GND
LOGIC DIAGRAM (Positive Logic)
A
D
B
DE
RE
R
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2002–2006, Texas Instruments Incorporated