Flash MCU is a logical choice for metering

The H8/38076RF group is the latest family of low-voltage Flash microcontrollers from Renesas Technology Europe.

The H8/38076RF group is the latest family of low-voltage Flash microcontrollers from Renesas Technology Europe.

The group offers extremely low power consumption and an on-chip high-resolution 10bit A/D convertor with wide sampling range which, together with the integrated Flash memory, makes it the logical choice for a variety of battery and line-powered applications.

These include water and gas meters, security sensors, access control panels and data loggers.

The family's highly integrated on-chip components and low cost Flash ensure a lower bill of materials for increased functionality.

The H8/38076RF group is based on the high-performance 16bit H8/300H CPU core and offers 48Kbyte of flexible, on-chip single-supply Flash memory that is capable of operating from 1.8 to 3.6V.

The Flash can be easily reprogrammed without any additional special circuitry, enabling software updates and bug fixes to be carried out in the field.

The family also has a power on-chip LCD display controller with integrated voltage booster and constant voltage generator.

The group has a fast oscillator startup of around 20us using an external resonator.

This facilitates applications whereby the device spends most of its time asleep in the lowest power modes.

An on-chip watchdog timer with integrated oscillator, coupled with power-on reset, allows the family to be easily designed into applications requiring a high level of reliability.

The H8/38076RF group has an integrated USART with built in IrDA interface that is specially designed to operate in a variety of low power modes.

A powerful 16bit timer module is capable of generating up to four channels of PWM output and can be used to drive a variety of motors.

Other peripherals include: 24-48Kbyte mask ROM; 1-2Kbyte SRAM; two SCI interfaces; a clock sync interface; a real-time clock; a TPU; three 8bit timers; an asynchronous timer; two 14bit PWM outputs; 63 I/O pins; on-chip power-on reset; and a debug interface.

The group is supported by the E7 emulator and 3DK38076 evaluation board.

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