The low-power microcontrollers added to the ML610Q4xx series from Lapis Semiconductor can control the operation of battery-powered systems used for the measurement and display of temperature, humidity and carbon monoxide in industrial and commercial environments. The microcontrollers feature RC-type ADCs to provide ±1.0°C accuracy in the temperature measurement using only passive components. According to the company, the ADCs simplify the external circuit and the software of the microcontrollers which perform measurements and require low power. The microcontrollers feature either a flash memory or a masked ROM to store the program that controls the display, user interface, communication ports and the taking of measurements. They also include an in-circuit programmable flash which is said allow on-chip, non-volatile data storage and ensure the ability to make program changes in the field.