MCU Products
Professional microcontroller solutions for your applications
The BH67F5275 is the flagship high-performance 8-bit RISC microcontroller within the series, specifically engineered for premium medical and measurement applications requiring extensive system resources. While maintaining the core high-precision 24-bit Delta Sigma A/D converter for ±0.2°C accuracy, this device significantly expands its capabilities to support advanced features such as wireless connectivity, voice guidance, and complex user interfaces.
Designed for data-intensive applications, the BH67F5275 features 32K words of Flash Program Memory and 2048 bytes of true EEPROM. This massive memory footprint is ideal for implementing Bluetooth/Wi-Fi communication protocols, storing multi-language voice data, or logging extensive historical measurement records (Memory Recall). The integrated In-Application Programming (IAP) technology further enhances flexibility, allowing for convenient firmware upgrades and calibration data storage directly on the production line.
The device offers the highest level of integration and expandability in the family. It includes a versatile LCD driver capable of driving larger, information-rich displays (up to 44 SEG × 4 COM), along with a built-in Low Noise OPA, LDO, and PGA to minimize external components. Available in package options up to 64-pin LQFP, the BH67F5275 provides abundant I/O ports for multi-function keys and dual-color backlights, making it the ultimate solution for high-end smart thermometers and IoT healthcare devices.
Features
High-Precision Analog Front-End
- - 24-bit Delta Sigma ADC: High-resolution converter ensures medical-grade measurement accuracy (±0.2°C).
- - Integrated Low Noise OPA: Built-in Operational Amplifier directly handles weak sensor signals, eliminating external components.
- - Integrated LDO & PGA: Built-in Linear Regulator and Programmable Gain Amplifier reduce system cost and PCB footprint.
- - Flexible Channel Configuration: Supports 2 differential or 4 single-ended external channels for versatile sensor interface.
Ultra-Low Power & Wide Voltage
- - Broad Operating Voltage: 2.2V ~ 5.5V range, compatible with various battery configurations.
- - Extended Battery Life: Features selectable clock sources and ultra-low power-down modes (Static current ≤ 5 μA) ideal for portable medical devices.
Ultimate Integration & Resources
- - Premium LCD Driver: Supports larger, information-rich displays (up to 44 SEG × 4 COM), enabling complex UI designs.
- - Massive Memory: 32K Flash and 2048 Bytes True EEPROM provide ample space for Bluetooth stacks, voice data, and extensive calibration logs.
- - Rich I/O & Packages: Available in up to 64-pin LQFP, supporting multi-function keys and dual-color backlights.
- - Smart Connectivity: Full suite of interfaces (I²C / SPI / UART) allows seamless integration with wireless modules (BLE/Wi-Fi).
System Reliability
- - Robust Protection: Built-in Watchdog Timer (WDT), Low Voltage Reset (LVR), and Low Voltage Detector (LVD) ensure fail-safe operation.
- - Industrial-Grade Immunity: Superior design with strong noise immunity and ESD protection for reliable performance in complex environments.
