MCUs with integrated LCD driver

25 November 2008

An 8bit MCU is designed for instrument clusters and HVAC controls.

Freescale Semiconductor has introduced an S08 MCU family with a liquid crystal display driver for entry-level instrument clusters and heating, ventilation and air conditioning (HVAC) controls.

Primarily targeting the Asian vehicle markets, Freescale’s S08LG32 family includes five automotive-qualified 5V devices that offer a range of flash memory sizes (up to 32KB) and package options scaling from 48 to 80 pins. The on-chip LCD driver supports displays with up to 296 segments (8x37 or 4x41 LCD configuration). The highly integrated 8bit MCUs are designed to deliver enhanced electromagnetic interference (EMI) and electromagnetic compatibility (EMC) performance.

Many 8bit MCUs with LCD drivers are typically designed for consumer and industrial designs with a 3V operating voltage. However, automotive developers require automotive-grade 5V devices optimised for more demanding applications. In addition to the 8bit LG32 family, Freescale offers integrated 16bit options, such as the S12HY devices, and higher-performance 32bit options based on Power Architecture technology, such as the MPC560xS MCUs and MPC5121e multicore processor.

According to the Society of Indian Automobile Manufacturers (SIAM), India is one of the world’s fastest growing automotive markets, with a 17.8% compound annual growth rate (CAGR) over the past five years in domestic sales. India is currently the world’s 10th largest producer of motor vehicles and the ninth largest producer of passenger cars. SIAM say that Indian automobile manufacturers produced 2.31 million motor vehicles and an additional 8.53 million two/three-wheeled vehicles in 2007. “With the introduction of the LG32 family, Freescale is addressing strong customer demand in India and China for 5V LCD MCUs targeting cluster and HVAC applications in entry-level vehicles,” said Kevin Klein, Global Marketing Manager of automotive MCUs at Freescale.

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