NEC Electronics 8-bit All Flash Microcontrollers for Body Control

NEC Electronics introduced eight new All Flash microcontrollers (MCUs) for safing microcontroller applications and low-end automotive systems (such as motor control and lighting control applications). The new microcontrollers consists of three 16-pin MCUs (78K0/FY2-L), three 20-pin MCUs (78K0/FA2-L), and two 30-pin MCUs (78K0/FB2-L). They feature a low standby power consumption of 0.65 µA, and are capable of responding to all temperature environments. Samples of the new MCUs are currently available. Mass production is scheduled to begin in June 2010 and is expected to reach a monthly production of 300,000 units by June 2015.

Body Control Microcontrollers Features

  • Industry-leading low standby power consumption
    By utilizing low power consumption technology accumulated through the 8-bit MCU development, NEC Electronics succeeded in achieving the industry’s leading low standby power consumption of 0.65 microamps (µA), while watchdog timer is operating. Furthermore, it enables low active power consumption of 220 µ per megahertz (MHz) during CPU operation. By using the internal 4 MHz oscillator system manufacturers can reduce both development and production costs.
  • Built-in LIN interface
    The new MCUs all include a LIN interface, as well as up to 16 kilobytes (KB) of flash, doubling the company’s existing products and providing enough memory capacity for LIN network designs.
  • Extensive variety of peripheral functions including comparators and full/half-bridge control timers
    NEC Electronics’ MCUs integrate a rich set of peripherals such as a PWM timer (with dead-time) for motors and solenoid actuators. Also included are comparators for instant control of timers, which provide the ability to detect overcurrent and overvoltage without the need of CPU intervention and enables system manufacturers to reduce external components and trim system development costs.
  • Software compatibility

NEC Electronics’ new MCUs help reduce the development burden on automotive manufacturers. Consumers also will benefit by having access to more sophisticated, eco-friendly products. Based on the same architecture as the company’s existing 8-bit 78K0 CPUs, the new MCUs are ideal as safing microcontroller for a larger main controller, and for electronic controls such as full-bridge control of high-density discharge (HID) lamps, full/half-bridge control of motor switching, switching control of solenoid drivers and pulse-width modulation (PWM) for LED dimming.

System manufacturers of NEC Electronics’ previous versions of the 78K0/Kx2 and 78K0/Fx2 MCUs can maintain backward compatibility with the software and also develop LIN slave products utilizing the same architecture, contributing to a smooth transition and faster-time-to-market. The new MCUs also support EEPROM emulation using the flash memory to facilitate software development.

More info: NEC Electronics