Datasheet

SN65HVD96
B
A
D
V
OD
passive active
A or B
B or A
R
|V
ID
|
passive active
Driver signaling(DE = high) Receiver detecting(RE = low)
GND
5
Temp.
SHDN
R
1
2
RE
DE
3
D
4
A
6
B
7
8
Vcc
SN65HVD96
www.ti.com SLLSE35B – JUNE 2010– REVISED NOVEMBER 2011
SymPol™ Transceiver
Check for Samples: SN65HVD96
1
FEATURES
• Transient Protection
– ±12 kV Human Body Model on Bus Pins
2
• Communicate Without Errors on Normal or
Reversed-Wire Bus Lines
– ±25 V Repetitive Transient Pulse on Bus
Pins
• Up to 5 Mbps Signaling
• Additional Reliability Features:
• Industrial Temperature Range: –40°C to 85°C
– Bus Standoff From –35 V to 40 V
• Symmetric Polarity Receiver
– Driver Output Short-Circuit Current Limit
• Receiver Hysteresis > 100 mV
– Automatic Thermal Shutdown and
• Connect up to 32 Nodes Plus Parallel
Recovery
Terminators on one Bus, or Connect up to 200
Nodes on an Unterminated Bus
• Complies with ANSI/TIA-4963 Standard
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. The SN65HVD96
complies with the requirements of ANSI/TIA-4963, Electrical Characteristics of Reversible Balanced Voltage
Digital Interface Circuits.
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 to protect 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.
1
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.
2Sympol is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2010–2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.