Datasheet 搜索 > 接口芯片 > TI（德州仪器） > SN65HVD1781DR 数据手册 > SN65HVD1781DR 数据手册 1/31 页
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SN65HVD1781DR 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
接口芯片
封装:
SOIC-8
描述:
TEXAS INSTRUMENTS SN65HVD1781DR 芯片, RS422/RS485 收发器, 1MBPS, SOIC-8 新
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SN65HVD1781DR数据手册
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V up to 70 V
FAULT
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SN65HVD1780
,
SN65HVD1781
,
SN65HVD1782
SLLS877G –DECEMBER 2007–REVISED AUGUST 2015
SN65HVD178x Fault-Protected RS-485 Transceivers With 3.3-V to 5-V Operation
1 Features 3 Description
The SN65HVD178x devices are designed to survive
1
• Bus-Pin Fault Protection to:
overvoltage faults such as direct shorts to power
– > ±70 V (SN65HVD1780, SN65HVD1781)
supplies, mis-wiring faults, connector failures, cable
– > ±30 V (SN65HVD1782)
crushes, and tool mis-applications. The devices are
also robust to ESD events with high levels of
• Operation With 3.3-V to 5-V Supply Range
protection to the human-body-model specification.
• ±16-kV HBM Protection on Bus Pins
The SN65HVD178x devices combine a differential
• Reduced Unit Load for Up to 320 Nodes
driver and a differential receiver, which operate from
• Failsafe Receiver for Open-Circuit, Short-Circuit,
a single power supply. In the SN65HVD1782, the
and Idle-Bus Conditions
driver differential outputs and the receiver differential
• Low Power Consumption
inputs are connected internally to form a bus port
suitable for half-duplex (two-wire bus)
– Low Standby Supply Current, 1 µA Maximum
communication. This port features a wide common-
– I
CC
4-mA Quiescent Current During Operation
mode voltage range, making the devices suitable for
• Pin-Compatible With Industry-Standard SN75176
multipoint applications over long cable runs. These
devices are characterized from –40°C to 125°C.
• Signaling Rates of 115 kbps, 1 Mbps, and up to
These devices are pin-compatible with the industry-
10 Mbps
standard SN75176 transceiver, making them drop-in
upgrades in most systems.
2 Applications
These devices are fully compliant with ANSI TIA/EIA
• HVAC Networks
485-A with a 5-V supply and can operate with a 3.3-V
• Security Electronics
supply with reduced driver output voltage for low-
• Building Automation
power applications. For applications where operation
is required over an extended common-mode voltage
• Telecommunication Equipment
range, see the SN65HVD1785 (SLLS872) data sheet.
• Motion Control
• Industrial Networks
Device Information
(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
SOIC (8) 4.90 mm × 3.91 mm
SN65HVD178x
PDIP (8) 9.81 mm × 6.35 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Protection Against Bus Shorts
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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