SN65HVD252_13 Datasheet, PDF (1/18 Pages) Texas Instruments – DeviceNet CAN Transceivers

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DeviceNet™ CAN Transceivers
Check for Samples: SN65HVD252, SN65HVD253
SN65HVD252
SN65HVD253
SLLSE37 – JUNE 2010
FEATURES
1
•2 DeviceNet Compliant Supporting 64 DeviceNet
Nodes
• Loopback Function (HVD253)
• Bus-Fault Protection of –36 V to 40 V
• Power-Up/Down Glitch-Free Bus I/O
• 3.3-V Compatible Receiver Output
APPLICATIONS
• DeviceNet Networks (Vendor ID # 806)
• Industrial Automation
• HVAC Networks
• Security Systems
• Telecom Base Station Status and Control
• CANopen Data Bus
• SDS Data Bus
• CAN Kingdom Data Bus
DESCRIPTION
The SN65HVD252 and SN65HVD253 CAN transceivers meet or exceed the specifications of DeviceNet and are
compatible to the ISO 11898-2:2003 standard for use in applications employing a controller area network (CAN).
This device provides differential transmit and receive capability at signaling rates up to 1 megabit per second
(Mbps).
Designed for operation in harsh industrial environments, these devices feature bus-pin voltage protection from
–36 V to 40 V, driver output current limiting, and overtemperature driver shutdown.
Pin 8 provides for two different modes of operation: normal and silent mode. The normal mode of operation is
selected by connecting S (pin 8) to ground. If a high logic level is applied to the S pin, the device enters a
listen-only silent mode during which the driver is inactive while the receiver remains fully functional.
The Vref pin 5 of the SN65HVD252 is a V_CC/2 voltage reference for systems which use split termination.
The AB pin of the SN65HVD253 implements a listen-only loopback feature which allows the local node controller
to synchronize its baud rate with that of the CAN bus. In loopback mode, the driver differential outputs are placed
in high-impedance state while the receiver bus inputs remain active. For more information on the loopback mode,
see the Application Information section.
The SN65HVD252 and SN65HVD253 are characterized for operation from –40°C to 85°C.
SPACER
1
TXD
8
S
1
TXD
8
S
2
GND
7
CANH
2
GND
7
CANH
3
VCC
6
CANL
3
VCC
6
CANL
4
RXD
V_CC / 2
SN65HVD252
5
V_REF
4
RXD
5
AB
SN65HVD253
1
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
DeviceNet is a trademark of Open DeviceNet Vendor Association .
2
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