MCU Products
Professional microcontroller solutions for your applications
The device has a high level of functional integration, high accuracy and low noise making it suitable for use in Glucose Meters, Glucose and Blood Pressure two-in-one Meters, Hemoglobin Testers, Body Fat Scales and other related products.
The device includes a fully integrated phase angle and electrochemical measurement AFE circuit, allowing AC impedance, phase angle and various other electrochemical physiological parameters to be directly measured by hardware. Amplifier gains and various parameters can also be controlled by software. With its internal 24-bit A/D converter, the device provides a high accuracy measurement function, which can implement blood pressure and body weight measurements. The integrated display driver circuit can directly drive LCD panels. The digital output interfaces include a PWM output as well as I²C, SPI and UART interface types.
With regard to memory, the device contains 32K×16 of Flash Program Memory, a 2048×8 RAM and a 2048×8 EEPROM. The EEPROM can be used to store automatic adjustment product parameters as well as calibration parameters, thus providing a means to simplify development and production.
As for packaging, the device is supplied in 64-pin LQFP and 80-pin LQFP package types.
Features
High-Precision Bio-Sensing Analog Front-End
- - Integrated 24-bit Delta-Sigma ADC
- - Internal programmable OPAs and electrochemical measurement circuits
- - Supports AC impedance, phase angle, and bio-signal sensing applications
Low Power Consumption and Wide Operating Voltage
- - Operating voltage: 2.2V ~ 5.5V
- - Supports selectable clock sources and power-down modes
- - Ideal for battery-powered portable devices
Highly Integrated Memory and Interfaces
- - Built-in Flash, RAM, and EEPROM
- - Communication interfaces: I²C / SPI / UART
- - Supports In-Application Programming (IAP) for firmware updates
Enhanced System Safety and Reliability
- - Built-in Watchdog, LVR / LVD
- - Strong noise immunity and ESD protection
- - Flexible internal/external clock switching
