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TJA1050

High speed CAN transceiver

Preliminary specification 1999 Sep 27

File under Integrated Circuits, IC18

Philips Semiconductors Preliminary specification

High speed CAN transceiver TJA1050

FEATURES GENERAL DESCRIPTION

• Fully compatible with the “ISO 11898” standard The TJA1050 is the interface between the CAN protocol

• High speed (up to 1 Mbaud) controller and the physical bus. The device provides

differential transmit capability to the bus and differential

• Transmit Data (TXD) dominant time-out function

receive capability to the CAN controller.

• Bus lines protected against transients in an automotive

environment The TJA1050 is the successor to the PCA82C250 high

speed CAN transceiver. The most important

• Silent mode in which the transmitter is disabled

improvements are:

• Differential receiver with wide common-mode range for • Much lower ElectroMagnetic Emission (EME) due to

high ElectroMagnetic Immunity (EMI) optimal matching of the CANH and CANL output signals

• Input levels compatible with 3.3 V devices • Improved behaviour in case of an unpowered node.

• Thermally protected

• Short-circuit proof to battery and ground

• An unpowered node does not disturb the bus lines

• At