MCU Products
Professional microcontroller solutions for your applications
The BH67F2493 is a flagship 8-bit RISC microcontroller specifically engineered for high-end electrochemical measurement applications. Integrating a powerful Multiplier/Divider Unit (MDU) and 24-bit ADC, it is the ideal solution for advanced Glucose Meters, Multi-parameter Health Monitors, and high-precision Hemoglobin Testers.
This device stands out with its superior signal processing capabilities. It features a 24-bit Delta-Sigma ADC for clinical-grade measurement and a built-in MDU to accelerate complex algorithm calculations (such as HCT compensation). The analog front-end also includes two 12-bit D/A converters and programmable operational amplifiers, while the integrated Temperature Sensor, LDO, and LCD Driver provide a complete system-on-chip solution.
The BH67F2493 offers extensive memory resources, including Flash Program Memory with IAP support, RAM, and True EEPROM for calibration data storage. It uniquely incorporates a 16-bit Cyclic Redundancy Check (CRC) generator to ensure data integrity. Connectivity is supported by fully integrated I²C, SPI, and UART interfaces. Enhanced safety features, including Watchdog Timer, LVR, and LVD, coupled with excellent ESD protection, ensure reliable operation in demanding environments.
The device is supplied in 64-pin LQFP package types, offering flexible options for compact medical device designs.
Features
Flagship Computing & AFE
- - Math Accelerator: Built-in MDU (Multiplier/Divider Unit) accelerates complex HCT algorithms.
- - Precision Analog: 24-bit ADC & Dual 12-bit DACs for advanced impedance analysis.
- - Data Integrity: Integrated 16-bit CRC generator ensures medical data reliability.
Integrated Display & Power
- - LCD & LDO Integration: Built-in LCD Driver and LDO reduce external BOM cost.
- - Smart Sensing: Integrated Temperature Sensor for real-time environmental compensation.
- - Power Efficiency: Ultra-low standby current maximizes battery life.
Premium Memory Architecture
- - Massive Storage: 8K Words True EEPROM stores thousands of patient logs.
- - Large Program Memory: 64K Flash supports complex application code.
- - IAP Support: Easy firmware updates and calibration data logging.
Connectivity & Safety
- - Flexible Connectivity: Standard I²C / SPI / UART interfaces.
- - Robust Protection: Enhanced ESD protection, Watchdog, LVR, and LVD.
- - Flexible Clock System Supports dynamic switching between HIRC (High Speed) and LIRC/LXT (Low Speed) to optimize power.
