SN65HVD96 Datasheet, PDF (1/10 Pages) Texas Instruments – SymPol™ Transceiver

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SymPol™ Transceiver
Check for Samples: SN65HVD96
SN65HVD96
SLLSE35 – JUNE 2010
FEATURES
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•2 Communicate Without Errors on Normal or
Reversed-Wire Bus Lines
• Up to 5 Mbps Signaling
• Industrial Temperature Range: –40°C to 85°C
• Symmetric Polarity Receiver
Thresholds ≥ 100 mV Receiver Hysteresis
• Connect up to 32 Nodes on one Bus
• Transient Protection
– ±12 kV Human Body Model on Bus Pins
– ±25 V Repetitive Transient Pulse on Bus
Pins
• Additional Reliability Features:
– Bus Standoff From –35 V to 40 V
– Driver Output Short-Circuit Current Limit
– Automatic Thermal Shutdown and
Recovery
DESCRIPTION
The SN65HVD96 is specifically designed to meet the requirements for a transceiver which operates with no
errors if the twisted-pair signal wires are connected normally or reversed. This allows for error free operation in
applications where the signal wires may become inadvertently reversed during installation or maintenance. This
feature is corrected internally so no intervention from the controller or operator is required.
Similar to RS-485, these transceivers can be used for point-to-point, multi-drop, or multi-point networks.
Sympol™ devices are not backwards compatible with, but are an upgrade to, existing RS-485 networks. The
pin-out is identical to the industry-standard SN75176 transceiver, allowing direct upgrade from RS-485 to
SymPol. Current-limited differential outputs protect in case of driver contention on a party-line bus. High receiver
input impedance allows connection of at least 32 nodes. Several fault tolerant features are integrated into the
device from operational hazards. Current limiting on the driver outputs protects against short-circuit faults, and
operates independently on each driver output. An automatic thermal shutdown protects the driver circuits against
over temperature conditions. The receiver output enters a deterministic failsafe state if the bus connection is left
disconnected or if the bus wires are shorted together.
The small outline integrated circuit (SOIC) package saves board space compared to equivalent discrete
implementations. These devices are fully characterized for operation over the industrial temperature range of
–40°C to 85°C.
SN65HVD96
Driver signaling(DE = high)
Receiver detecting(RE = low)
D
A or B
R¹
RE ²
DE ³
D⁴
Temp.
SHDN
8 _Vcc
B
A
7_B
6
A
V_OD
5 _GND
passive active
B or A
|V_ID|
R
passive active
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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.
Sympol is a trademark of Texas Instruments.
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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 © 2010, Texas Instruments Incorporated