NXP Semiconductors TJA1055 Product Data Sheet

1. General description

2. Features and benefits

2.1 Optimized for in-car low-speed communication

2.2 Bus failure management

TJA1055
Enhanced fault-tolerant CAN transceiver
Rev. 5 — 6 December 2013
The TJA1055 is the interface between the protocol controller and the physical bus wires in
a Controller Area Network (CAN). It is primarily intended for low-speed applications up to
125 kBd in passenger cars. The device provides differential receive and transmit
capability but will switch to single-wire transmitter and/or receiver in error conditions. The
TJA1055 is the enhanced version of the TJA1054 and TJA1054A. TJA1055 has the same
functionality but in addition offering a number of improvements. The most important
improvements of the TJA1055 with respect to the TJA1054 and TJA1054A are:
•
Improved ElectroStatic Discharge (ESD) performance
•
Lower current consumption in sleep mode
•
Wake-up signalling on RXD and ERR without V
•
3 V interfacing with microcontroller possible with TJA1055T/3

Pin-to-pin compatible with TJA1054 and TJA1054A

Baud rate up to 125 kBd

Up to 32 nodes can be connected

Supports unshielded bus wires

Very low ElectroMagnetic Emission (EME) due to built-in slope control function and a
very good matching of the CANL and CANH bus outputs

Very high ElectroMagnetic Immunity (EMI) in normal operating mode and in low power
modes

Fully integrated receiver filters

Transmit Data (TxD) dominant time-out function

High ESD robustness:
8 kV Electrostatic Discharge (ESD) protection Human Body Model (HBM) for

off-board pins
6 kV Electrostatic Discharge (ESD) protection IEC 61000-4-2 for off-board pins


Low-voltage microcontroller support

Supports single-wire transmission modes with ground offset voltages up to 1.5 V

Automatic switching to single-wire mode in the event of bus failures, even when the
CANH bus wire is short-circuited to V
active
CC
CC
Product data sheet