BH66F5355
24-Bit A/D Flash MCU
General Information
The device is a Flash Memory A/D type 8-bit high performance RISC architecture microcontroller which includes a multi-channel 24-bit Delta Sigma A/D converter with Accurate Temperature Sensor, specifically designed for high accuracy measurement products and temperature measurement products.
For memory features, the Flash Memory offers users the convenience of multi-programming features. Other memory includes an area of RAM Data Memory as well as an area of true EEPROM memory for storage of non-volatile data such as serial numbers, calibration data etc.
Analog features include a multi-channel 24-bit Delta Sigma A/D Converter and Operational Amplifier fucntions. Multiple and extremely flexible Timer Modules provide timing, pulse generation and PWM generation functions. Communication with the outside world is catered for by including fully integrated SPI, I2C and UART interface functions, three popular interfaces which provide designers with a means of easy communication with external peripheral hardware. Protective features such as an internal Watchdog Timer, Low Voltage Reset and Low Voltage
Detector coupled with excellent noise immunity and ESD protection ensure that reliable operation is
maintained in hostile electrical environments.
The device also includes fully integrated high and low oscillators which require no external components for their implementation. The ability to operate and switch dynamically between a range of operating modes using different clock sources gives users the ability to optimise microcontroller operation and minimise power consumption.
The inclusion of flexible I/O programming features, Time-Base funcitons along with many other features enhance the versatility of the device to suit for high accuracy measurement products such as electronic scales, blood pressure meters and so on, as well as appropriate for use in ear thermometers, forehead thermometers, electronic thermometers and other temperature measurement products.
CPU Features
| Attribute | Value |
|---|---|
| Operating voltage |
|
| Up to 0.33μs instruction cycle with 12MHz system clock | Available |
| Power down and wake-up functions to reduce power consumption | Available |
| Oscillator types |
|
| Multi-mode operation | FAST, SLOW, IDLE and SLEEP |
| Fully integrated internal oscillators require no external components | Available |
| All instructions executed in 1~3 instruction cycles | Available |
| Table read instructions | Available |
| 115 powerful instructions | Available |
| 8-level subroutine nesting | Available |
| Bit manipulation instruction | Available |
Peripheral Features
| Attribute | Value |
|---|---|
| Flash Program Memory | 8K×16 |
| Data Memory | 512×8 |
| True EEPROM Memory | 512×8 |
| Watchdog Timer function | Available |
| 10 bidirectional I/O lines | Available |
| Two external interrupt lines shared with I/O pins | Available |
| Multiple Timer Modules for time measure, input capture, compare match output, PWM output function or single pulse output function | Available |
| Serial Interface Module – SIM includes SPI and I2C interfaces | Available |
| Fully-duplex/Half-duplex Universal Asynchronous Receiver and Transmitter Interface – UART | Available |
| Dual Time-Base functions for generation of fixed time interrupt signals | Available |
| 2 differential or 4 single-end external channel 24-bit resolution Delta Sigma A/D converter | Available |
| Low voltage reset function | Available |
| Low voltage detect function | Available |
| Package types | 24-pin SSOP, 24-pin QFN |
Resources
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