MCU cuts down on external components

A new high-performance, general-purpose 8bit microcontroller minimises the need for external memory components by offering 16Kbyte of on-chip NAND-type Flash memory.

Toshiba has expanded its line-up of high-performance, general-purpose 8bit microcontrollers with a new device that minimises the need for external memory components by offering 16Kbyte of on-chip NAND-type Flash memory.

Supplied in a compact, 44-pin LQFP, the new Toshiba TMP86FH47UG microcontroller will help engineers to simplify circuit design and reduce overall component count.

On-chip Flash memory allows designers to use the same device to deliver different levels of functionality by simply changing the onboard software.

The Flash memory is in-circuit programmable and can also be used to address low-volume custom requirements using a standard part.

Toshiba's TMP86FH47UG operates across a wide input voltage range of 2.7 to 5.5V and is based on the company's proprietary, high-performance 8bit TLCS-870/C CPU core.

This core features 731 basic instructions and provides operation at speeds of up to 16MHz.

In addition to the onboard Flash, the TMP86FH47UG also offers 512byte of RAM storage.

Designed to minimise component count, the TMP86FH47UG incorporates a comprehensive range of onboard peripherals.

These include LED driver output pins, a 10bit ADC, a two-channel 8bit timer/counter, a two-channel 16bit timer/counter, and a programmable watchdog timer.

Serial connectivity comprises a single-channel UART and a high-speed 8bit serial interface.

The TMP86FH47UG offers dual-clock operation and, in addition to the built-in stop mode, has eight further power down modes.

These comprise slow 1 and slow 2, idle 0, 1 and 2, and sleep 0, 1 and 2.

Slow modes minimise power consumption through the use of a low-frequency clock operating at 32.768kHz.

Idle and sleep modes shut down the CPU and operate the peripherals using either the high- or low-frequency clock depending on the mode chosen.

Toshiba is offering a starter kit to support the new Flash microcontroller.

This kit provides all of the hardware and software required for rapid development and debugging of embedded industrial and home appliance applications based on the TMP86FH47UG.

In addition to development and debug tools, the kit also includes a Flash memory programmer and extensive software libraries.

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