NXP Launches CAN Transceiver MCU Solution

NXP Semiconductors has announced the LPC11C22 and LPC11C24, the industry’s first integrated high-speed CAN Physical Layer transceiver and microcontroller with easy-to-use on-chip CANopen drivers.

Available in a System-in-Package solution, the LPC11C22 and LPC11C24 with integrated TJF1051 CAN transceiver combine complete CAN functionality into a low-cost LQFP48 package.

CAN is recognized as a robust and reliable communication channel for rugged environments. With the introduction of the LPC11C22 and LPC11C24 integrated CAN transceiver microcontroller solution, NXP has opened the door for widespread adoption of low-cost CAN in an increasing variety of industrial and automation applications for factories, buildings and in the home. Typically, CAN transceivers can cost as much as or even more than the microcontroller itself. Integrating the CAN transceiver on board increases system reliability and quality, reduces electrical interconnect and compatibility issues, and reduces board space by over 50 percent while adding less than 20 percent to the MCU cost. The LPC11C22 and LPC11C24 are the latest additions to the LPC11C00 series of CAN 2.0B-compliant controllers.

The CAN Physical Layer is designed for up to 1Mbps High-Speed CAN networks and delivers optimal performance for industrial applications with state-of-the-art Electrostatic Discharge (ESD) protection, improved Electromagnetic Compatibility (EMC) and low power operation. The LPC11C22/C24 CAN Physical Layer is fully compliant with the ISO 11898-2 standard for two-wire balanced signaling and is optimized for automotive sensor applications and rugged industrial CAN networks. High ESD handling capability on bus pins is combined with additional fail-safe features such as high DC handling capability on CAN pins, Transmit Data dominant time-out function, undervoltage detection, and thermal protection. Low power management is fully integrated, and the transceiver can disengage from the bus when it is not powered up.

CANopen drivers are provided in on-chip ROM with easy-to-use APIs, enabling users to rapidly adopt the LPC11C22/C24 into embedded networking applications based on the CANopen standard. This standardized CANopen layer (EN 50325) is especially well suited for embedded networks in all kinds of control, such as machines and elevators, making proprietary or application-specific application layers obsolete. Incorporating CANopen drivers in on-chip ROM reduces overall risk and effort while providing design engineers with the added advantage of reduced operating power, as well as secure and safe bootloading via CAN. With the security and peace of mind offered by ROM-based drivers, updating Flash via In System Programming (ISP) over the CAN-bus provides the whole range of functionality – from programming blank parts in production, through changing system parameters, to full in-field re-programmability.

The LPC11C22 and C24 require 40-50 percent smaller code size than 8-/16-bit MCUs for most common MCU tasks. This is enabled by the powerful ARM Cortex-M0 v6-M instruction set, which is built on a fundamental base of 16-bit Thumb instructions unique to 32-bit MCUs today.

NXP LPC11C00 series

NXP Semiconductors