Philips Semiconductors
Product specification
Fault-tolerant CAN transceiver
FEATURES
Optimized for in-car low-speed communication
•
Baud rate up to 125 kBaud
•
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
•
Good ElectroMagnetic Immunity (EMI) in normal
operating mode and in low power modes
•
Fully integrated receiver filters
•
Transmit Data (TxD) dominant time-out function.
Bus failure management
•
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
CC
•
Automatic reset to differential mode if bus failure is
removed
•
Full wake-up capability during failure modes.
Protections
•
Bus pins short-circuit safe to battery and to ground
•
Thermally protected
•
Bus lines protected against transients in an automotive
environment
•
An unpowered node does not disturb the bus lines.
Support for low power modes
•
Low current sleep and standby mode with wake-up via
the bus lines
•
Power-on reset flag on the output.
ORDERING INFORMATION
TYPE
NUMBER
TJA1054AT
TJA1054AU
PACKAGE
NAME
SO14
−
DESCRIPTION
plastic small outline package; 14 leads; body width 3.9 mm
bare die; 1990
×
2730
×
375
µm
GENERAL DESCRIPTION
TJA1054A
The TJA1054A 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 kBaud 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 TJA1054A is the ESD improved version of the
TJA1054. For an overview of the differences between the
TJA1054 and the TJA1054A, please refer to “Appendix A”.
The TJA1054AT is, as the TJA1054T, pin and downwards
compatible with the PCA82C252T and the TJA1053T. This
means that these two devices can be replaced by the
TJA1054AT or the TJA1054T with retention of all
functions.
The most important improvements of the TJA1054 and the
TJA1054A with respect to the PCA82C252 and the
TJA1053 are:
•
Very low EME due to a very good matching of the CANL
and CANH output signals
•
Good EMI, especially in low power modes
•
Full wake-up capability during bus failures
•
Extended bus failure management including
short-circuit of the CANH bus line to V
CC
•
Support for easy system fault diagnosis
•
Two-edge sensitive wake-up input signal via pin WAKE.
VERSION
SOT108-1
−
2004 Mar 23
2
PHILIPS [ NXP SEMICONDUCTORS ]
