PCA82C251T

The PCA82C251T is a high-speed CAN (Controller Area Network) transceiver manufactured by NXP Semiconductors, designed for robust and reliable communication in automotive and industrial environments. It operates with a supply voltage range of 5.0 V ± 5%, enabling compatibility with standard logic levels while maintaining low power consumption during normal operation. The device supports data rates up to 1 Mbit/s, making it suitable for high-performance network applications requiring fast message transmission. This transceiver features differential signaling on both the CANH and CANL lines, which enhances noise immunity and ensures signal integrity over long cable runs—critical for electrically noisy environments such as vehicle electronics or factory automation systems. It includes an integrated high-voltage driver and receiver that support the ISO 11898-2 standard for high-speed CAN communication, allowing seamless integration into existing CAN networks without additional external components. A key feature of the PCA82C251T is its built-in protection mechanisms, including short-circuit protection, thermal shutdown, and electrostatic discharge (ESD) protection up to ±15 kV (Human Body Model). These protections ensure durability under harsh operating conditions and reduce system failure risks due to transient electrical events. Additionally, the transceiver offers a low quiescent current of typically 4 mA, contributing to energy efficiency in battery-powered or low-power systems. The PCA82C251T is commonly used in automotive applications such as engine control units (ECUs), anti-lock braking systems (ABS), airbag modules, and infotainment systems where real-time, fault-tolerant communication is essential. In industrial settings, it supports machine-to-machine (M2M) communication in programmable logic controllers (PLCs), sensor networks, and robotics, providing stable connectivity across multiple nodes in distributed control architectures. It is available in a compact 8-pin DIP package, facilitating easy mounting on printed circuit boards and simplifying design integration into space-constrained systems. The device also maintains compatibility with various microcontrollers and CAN controllers, such as the Philips 82C200 or other third-party CAN ICs, offering flexibility in system design. With its combination of performance, reliability, and ease of use, the PCA82C251T serves as a foundational component in modern embedded communication systems demanding high-speed, robust, and standardized data exchange.