SN65HVD485EDR Datasheet, PDF (1/22 Pages) Texas Instruments – HALF-DUPLEX RS-485 TRANSCEIVER

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DGK D
SN65HVD485E
P
SLLS612C – JUNE 2004 – REVISED MARCH 2007
HALF-DUPLEX RS-485 TRANSCEIVER
FEATURES
• Bus-Pin ESD Protection Up to 15 kV
• 1/2 Unit Load–Up to 64 Nodes on a Bus
• Bus-Open-Failsafe Receiver
• Glitch-Free Power-Up/Down Bus Inputs and
Outputs
• Available in Small MSOP-8 Package
• Meets or Exceeds the Requirements of the
TIA/EIA-485A Standard
• Industry-Standard SN75176 Footprint
APPLICATIONS
• Motor Control
• Power Inverters
• Industrial Automation
• Building Automation Networks
• Industrial Process Control
• Battery-Powered Applications
• Telecommunications Equipment
DESCRIPTION
The SN65HVD485E is a half-duplex transceiver
designed for RS-485 data bus networks. Powered by
a 5V supply, it is fully compliant with the
TIA/EIA-485A standard. This device is suitable for
data transmission up to 10Mbps over long
twisted-pair cables and is designed to operate with
very low supply current, typically less than 2mA,
exclusive of the load. When in the inactive shutdown
mode, the supply current drops below 1mA.
The wide common-mode range and high ESD
protection levels of this device make it suitable for
demanding applications such as, electrical inverters,
status/command signals across telecom racks,
cabled chassis interconnects, and industrial
automation networks where noise tolerance is
essential. The SN65HVD485E matches the
industry-standard footprint of the SN75176.
Power-on reset circuits keep the outputs in a
high-impedence state until the supply voltage has
stabilized. A thermal shutdown function protects the
device from damage due to system fault conditions.
The SN65HVD485E is characterized for operation
from –40°C to 85°C air temperature.
IMPROVED REPLACEMENT FOR:
PART NUMBER
REPLACE WITH
ADM485
HVD485E:
Better ESD protection (±15 kV vs unspecified)
Faster signaling rate (10 Mbps vs 5 Mbps)
More nodes on a bus (64 vs. 32) Wider power supply tolerance (10% vs 5%)
SP485E
HVD485E:
More nodes on a bus (64 vs. 32)
Wider power supply tolerance (10% vs. 5%)
LMS485E
HVD485E:
Higher signaling rate (10 Mbps vs 2.5 Mbps)
More nodes on a bus (64 vs 32)
Wider power supply tolerance (10% vs 5%)
DS485
HVD485E:
Higher signaling rate (10 Mbps vs 2.5 Mbps)
Better ESD (±15 kV vs ±2 kV)
More nodes on a bus (64 vs 32)
Wider power supply tolerance (10% vs 5%)
LTC485
HVD485E:
Better ESD (±15 kV vs ±2 kV)
Wider power supply tolerance (10% vs 5%)
MAX485E
HVD485E:
Higher signaling rate (10 Mbps vs 2.5 Mbps)
More nodes on a bus (64 vs 32)
Wider power supply tolerance (10% vs 5%)
ST485E
HVD485E:
Higher signaling rate (10 Mbps vs 5 Mbps)
Wider power supply tolerance (10% vs 5%)
ISL8485E
HVD485:
More nodes on a bus (64 vs 32)
Faster signaling rate (10 Mbps vs 5 Mbps)
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 © 2004–2007, Texas Instruments Incorporated