NXP Announces Integrated CAN Transceiver Microcontroller Solution

NXP Semiconductors announced the LPC11C22 and LPC11C24, which are integrated high-speed CAN Physical Layer transceivers and microcontrollers with on-chip CANopen drivers. Offered as a unique System-in-Package solution, the LPC11C22 and LPC11C24 with integrated TJF1051 CAN transceiver combine complete CAN functionality into a LQFP48 package.

"Offering a highly optimized CAN solution in a single package simplifies industrial network design,” said Geoff Lees, vice president and general manager, microcontroller product line, NXP Semiconductors. ”The close coupling of transceiver and 32-bit MCU with CANopen protocol support directly on-chip extends our plug-and-play system approach.”

The CAN Physical Layer is designed for up to 1 Mbit/s 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 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. 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, says NXP.

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

With over 45 DMIPS of performance, the LPC11C22 and LPC11C24 provide message and data handling for CAN device nodes together with a power-optimized solution unavailable with today’s 8-/16-bit microcontrollers.