Holtek continues with its development of blood glucose monitoring products and now follows with the launch of its new Flash MCU, the BH66F2455. The device has the features of ultra-low power consumption, a small outline and a high level of functional integration making it suitable for use in continuous glucose monitoring products. The device includes an analog front end circuit (AFE), which contains ultra-low power OPAs, a low-power sensor bias voltage. The 24-bit A/D converter features a hardware auto-conversion mode that reduces the operating current during analog signal conversion. The device is supplied in a 3mm×3mm size package and requires only a few external components, which can meet the demands of low profile products. The bias configuration current is only 3.7μA and the average current during continuous conversion operation is only 4.8μA. These low current features can significantly extend the product service life and can subsequently support a wide range of applications, including two, three and four electrode electrochemical sensors. With regard to memory, the device contains 8K×16 of Flash Program Memory, a 512×8 RAM and a 512×8 EEPROM. The EEPROM can be used to store product adjustment parameters as well as data storage. As for packaging, the device is supplied in 24-pin QFN package type.