A 0.9-V microcontroller for portable applications

Andreas Wild

doi:10.1109/4.597295

A 0.9-V microcontroller for portable applications

1997-07-01

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DOI：10.1109/4.597295

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A 0.9-1.6-V, 1-MHz, 8-b microcontroller based on the 68HC08 architecture is presented. In addition to standard digital microcontroller functions, the chip features RAM, ROM, phase-locked loop (PLL) clock synthesis, and liquid crystal displays (LCD) drive capabilities operating from the voltage supply range of a single AA or AAA battery. The design used a library of CMOS microcontroller building blocks, converted into a low-voltage technology using unilateral transistors. The design approach was to optimize the conversion strategy for each functional block and to provide new designs when the conversion was insufficient. The chip exceeded specifications with blocks showing full functionality down to 0.7 V.

Keyword:

low voltage

low power

one-cell

microcontroller

portable

wireless

A 0.9-V microcontroller for portable applications

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