25-MHz 8-bit MCU achieves lowest active power

25-MHz 8-bit MCU achieves lowest active power

Said to have the industry’s lowest power, the C8051F912 high-performance 8-bit microcontroller features an integrated dc/dc converter for constant current draw over a wide supply current, The processor takes just 4 mA (160 μA/MHz) active current from 1.8 to 3.6 V at 25 MHz and has 10-nA sleep current with data retention and black-out-detector disabled.

The small 4 x 4-mm chip has a 12-bit (±1.5 LSB) A/D converter, 16 Kbytes of flash, 768 bytes of RAM, two comparators, a 16-bit programmable counter array with six capture/compare modules, a WDT. and two clock oscillators. The CPU has a pipelined instruction architecture where 70% of instructions execute in one or two system clocks. The chip operates from –40° to 85°C, wakes from sleep in 2 μs with a 1.5 μs analog settling time, and its dc/dc converter can supply up to 65 mW of power to other system components. A full development kit for the C8051F9xx family is available for $99. (C8051F912, from $1.69 ea/10,000; full development kit for C8051F9xx family, $99 — available now.)

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