Fully compatible with the ISO 11898 standard
High speed (up to 1 MBaud)
Very low-current standby mode with remote wake-up capability via the bus
Very low ElectroMagnetic Emission (EME)
Differential receiver with high common-mode range for ElectroMagnetic Immunity (EMI)
Transceiver in unpowered state disengages from the bus (zero load)
Input levels compatible with 3.3 V and 5 V devices
Voltage source for stabilizing the recessive bus level if split termination is used (further improvement of EME)
At least 110 nodes can be connected
Transmit Data (TXD) dominant time-out function
Bus pins protected against transients in automotive environments
Bus pins and pin SPLIT short-circuit proof to battery and ground
Thermally protected.

General description

The TJA1040 is the interface between the Controller Area Network (CAN) protocol controller and the physical bus. It is primarily intended for high speed applications, up to 1 MBaud, in passenger cars. The device provides differential transmit capability to the bus and differential receive capability to the CAN controller.

The TJA1040 is the next step up from the TJA1050 high speed CAN transceiver. Being pin compatible and offering the same excellent EMC performance, the TJA1040 also features:

• An ideal passive behaviour when supply voltage is off
• A very low-current standby mode with remote wake-up capability via the bus.

This makes the TJA1040 an excellent choice in nodes which can be in power-down or standby mode in partially powered networks

Features and benefits

• Fully compatible with the ISO 11898 standard
• High speed (up to 1 MBaud)
• Very low-current standby mode with remote wake-up capability via the bus
• Very low ElectroMagnetic Emission (EME)
• Differential receiver with high common-mode range for ElectroMagnetic Immunity (EMI)
• Transceiver in unpowered state disengages from the bus (zero load)
• Input levels compatible with 3.3 V and 5 V devices
• Voltage source for stabilizing the recessive bus level if split termination is used (further improvement of EME)
• At least 110 nodes can be connected
• Transmit Data (TXD) dominant time-out function
• Bus pins protected against transients in automotive environments
• Bus pins and pin SPLIT short-circuit proof to battery and ground
• Thermally protected.

Block diagrams