The latest ML610Q4xx series low-power microcontrollers from Lapis Semiconductor (formerly OKI Semiconductor) feature an RC-type analogue-to-digital converter (RC-ADC) that provides accurate (±1.0°C) temperature measurement using only passive components.

According to the supplier, RC-type ADCs simplify the external circuit and the software necessary to perform measurements and require less power than systems employing a separate ADC to convert the sensor input.

The MCU series offers versions with either flash memory or masked ROM to store the program that controls the display, user interface, communication ports and the taking of measurements.

They feature in-circuit programmable flash which benefits designers by allowing on-chip, non-volatile data storage and the ability to make program changes in the field.

Development kits, evaluation boards, debug hardware and PC-based software development tools are available to facilitate the design of ML610Q4xx series-based products.

http://www.rohm.com/us/low-power-micro.html