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Fujitsu Microelectronics Europe has expanded its line-up of low-pin-count (LPC) microcontrollers with three series in its F2MC-8FX family of 8-bit microcontrollers featuring eight, 16 and 20 pins.

The MB95260H, MB95270H and MB95280H series contain embedded dual-operation flash memory and support E2PROM emulation, which allows a reduction in system cost as this does not need to be connected to the microcontroller.

In recent years, there has been rapidly growing demand for LPC 8-bit microcontrollers for use in home appliances such as white goods, water heaters, electric pots, dehumidifiers and hair dryers, according to the company.

In response to these needs, Fujitsu has been providing a line-up of eight-, 16- and 20-pin LPC 8-bit flash microcontrollers in its F2MC-8FX family.

The MB95260H, MB95270H and MB95280H series are pin-compatible with previous MB95200-series products, with the addition of embedded dual-operation flash memory.

This dual-operation flash provides memory for program data, as well as a memory area for data storage, which eliminates the need for external E2PROM and thus reduces total system cost.

In addition to their use as main microcontrollers, the three series can be used as submicrocontrollers.

The three series also employ a single-line on-chip debug that uses only one pin on the microcontroller.

The microcontrollers include Fujitsu’s proprietary embedded dual-operation flash memory, which emulates E2PROM.

The memory contains two regions: one for program storage and another that can be used for data storage, which acts as a substitute for E2PROM.

This allows a reduction in system area and cost, as an external E2PROM is not required.

The microcontrollers incorporate Fujitsu’s high-reliability, high-performance embedded flash memory that can be rewritten 100,000 times and guaranteed to hold data for 20 years.

A flash security function protects customers’ software from being read by unauthorised external programmes.

As the internal CR oscillating circuit and the low-voltage detection circuit are built into the microcontrollers, the need for an external oscillator and reset IC is eliminated, thus contributing to a reduction in overall system costs.

For the timer function in the embedded ‘composite timer’, depending on the program, a channel can be selected from any one of the following: pulse-width modulation (PWM), pulse-width counter (PWC), interval timer or input capture (which measures interval times).

This provides the flexibility to handle customers’ varying system requirements.

A starter kit, MB2146-420A-01-E, which includes the Softune Workbench product development environment, is also available.

Fujitsu Semiconductor

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