MCU Products

MCU Products

Professional microcontroller solutions for your applications

Product Overview The BH67F2476 is a highly integrated, high-precision Flash MCU designed for advanced physiological monitoring. It is ideal for next-generation medical devices such as Glucose Meters with HCT compensation, 2-in-1 Glucose & Blood Pressure Monitors, Hemoglobin Testers, and Body Fat Scales.

Advanced Bio-Sensing AFE At its core is a specialized Electrochemical & Phase Angle Measurement AFE. This hardware engine directly measures AC impedance and phase angle, enabling precise physiological analysis (e.g., HCT correction) with minimal software overhead. A built-in 24-bit Sigma-Delta ADC ensures clinical-grade accuracy for detecting weak bio-signals, while the integrated LCD driver simplifies display interface design.

Memory & Connectivity The device features robust memory resources, including 32K Words of Flash Memory, 2K Bytes of RAM, and 2K Bytes of True EEPROM. The EEPROM is perfect for storing calibration parameters and manufacturing data, streamlining production efficiency. Connectivity is handled by flexible I²C, SPI, and UART interfaces, along with PWM output for expanded control.

Packaging Available in compact 64-pin LQFP packages, the BH67F2476 offers the perfect balance of integration and form factor for portable medical electronics.

BH67F2476

Features

Advanced Bio-Sensing AFE

  • - ntegrated 24-bit Sigma-Delta ADC for clinical-grade resolution.
  • - Built-in Impedance Engine (Sine Wave Generator) allows precise HCT compensation.
  • - Software-configurable Switch Matrix supports various test strip pinouts.

Integrated Display & Power

  • - Built-in LCD Driver directly drives panels, reducing external components.
  • - Integrated LDO provides stable power output with wide voltage support (2.2V ~ 5.5V).
  • - Ultra-low standby current maximizes battery life for portable use.

Robust Memory Architecture

  • - 32K Flash & 2K True EEPROM for program and calibration data storage.
  • - Supports IAP (In-Application Programming) for convenient firmware updates and data logging.
  • - Data Security: Secure protection for patient history and manufacturing codes.

Connectivity & Reliability

  • - Flexible Interfaces: Standard I²C / SPI / UART for module connectivity (e.g., Bluetooth).
  • - High Reliability: Excellent ESD protection (±8kV) and noise immunity for complex environments.
  • - System Safety: Built-in Watchdog Timer (WDT) and Low Voltage Reset (LVR).