Overview
The TJA1054AT/N,112 is a fault-tolerant CAN (Controller Area Network) transceiver produced by NXP USA Inc. This device serves as the interface between the CAN protocol controller and the physical bus wires in a CAN network. It is primarily designed for low-speed applications, up to 125 kBd, and is particularly suited for use in passenger cars. The TJA1054AT/N,112 is an improved version of the TJA1054, offering enhanced ElectroStatic Discharge (ESD) protection and other significant improvements over its predecessors, such as the PCA82C252 and TJA1053.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 14-SOIC (0.154", 3.90mm Width) |
| Supply Voltage | 4.75 V to 5.25 V |
| Operating Temperature | -40°C to 150°C |
| Baud Rate | Up to 125 kBd |
| Number of Nodes | Up to 32 nodes |
| Bus Type | Differential transmit and receive capability |
| Wake-up Input | Two-edge sensitive wake-up input via pin WAKE |
| Bus Failure Management | Supports single-wire transmission modes with ground offset voltages up to 1.5 V |
| EME and EMI | Very low ElectroMagnetic Emission (EME) and good ElectroMagnetic Immunity (EMI) |
Key Features
- Optimized for in-car low-speed communication.
- Supports unshielded bus wires.
- Very low ElectroMagnetic Emission (EME) due to built-in slope control function and good matching of 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.
- Extended bus failure management including short-circuit of the CANH bus line to VCC.
- Support for easy system fault diagnosis.
- Two-edge sensitive wake-up input signal via pin WAKE.
Applications
The TJA1054AT/N,112 is primarily used in automotive applications, particularly in passenger cars, for low-speed CAN communication. It is suitable for systems that require robust and fault-tolerant communication over the CAN bus, such as vehicle control systems, diagnostic systems, and other automotive networks.
Q & A
- What is the primary function of the TJA1054AT/N,112? The TJA1054AT/N,112 serves as the interface between the CAN protocol controller and the physical bus wires in a CAN network.
- What is the maximum baud rate supported by the TJA1054AT/N,112? The device supports baud rates up to 125 kBd.
- How many nodes can be connected using the TJA1054AT/N,112? Up to 32 nodes can be connected.
- What type of bus wires does the TJA1054AT/N,112 support? It supports unshielded bus wires.
- What are the key improvements over its predecessors? The device offers very low ElectroMagnetic Emission (EME), good ElectroMagnetic Immunity (EMI), extended bus failure management, and support for easy system fault diagnosis.
- What is the operating temperature range of the TJA1054AT/N,112? The operating temperature range is -40°C to 150°C.
- How does the device handle bus failures? The device supports single-wire transmission modes with ground offset voltages up to 1.5 V and has extended bus failure management including short-circuit of the CANH bus line to VCC.
- What is the wake-up mechanism of the TJA1054AT/N,112? The device features a two-edge sensitive wake-up input signal via pin WAKE.
- Is the TJA1054AT/N,112 compatible with other NXP devices? Yes, it is pin and functionally compatible with the PCA82C252T and the TJA1053T.
- What is the package type of the TJA1054AT/N,112? The device is packaged in a 14-SOIC (0.154", 3.90mm Width) package.
