BH66F5250
24-Bit Delta Sigma A/D FlashMCU Integrated Regulator & OPA
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. This allows it to be used in applications that need to interface to analog signals which require a low noise and high accuracy analog to digital converter.
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 with 24-bit Delta Sigma A/D converter with both single and differential inputs. 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.
A full choice of external, internal and high and low oscillators functions is provided including two fully integrated system 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, a 16-bit MDU and Time-Base funcitons along with many other features enhance the versatility of the device to enable quick and cost efficient weight measurement scales and other related products.
Product Details
- Operating Voltage
– fSYS=4MHz: 2.2V~5.5V
– fSYS=8MHz: 2.2V~5.5V
– fSYS=12MHz: 2.7V~5.5V
– fSYS=16MHz: 3.3V~5.5V - Up to 0.25μs instruction cycle with 16MHz system clock at VDD=5V
- Power down and wake-up functions to reduce power consumption
- Oscillator Types
– High Speed External Crystal – HXT
– High Speed Internal RC – HIRC
– External 32.768kHz Crystal – LXT
– Internal 32kHz RC – LIRC - Multi-mode operation: FAST, SLOW, IDLE and SLEEP
- Fully integrated internal oscillators require no external components
- All instructions executed in 1~3 instruction cycles
- Table read instructions
- 115 powerful instructions
- 8-level subroutine nesting
- Bit manipulation instruction
- Program Memory: 8K×16
- Data Memory: 512×8
- True EEPROM Memory: 128×8
- In Application Programming function – IAP
- Watchdog Timer function
- Up to 37 bidirectional I/O lines
- 8 differential or 16 single-end channel 24-bit resolution Delta Sigma A/D converter
- 16-bit Multiplication Division Unit
- Two pin-shared external interrupts
- Multiple Timer Modules for time measure, input capture, compare match output, PWM output or single pulse output function
– 1 Standard type 16-bit Timer Module – STM
– 3 Periodic type 10-bit Timer Modules – PTM0~PTM2 - Universal Serial Interface Module – USIM for SPI, I2C or UART communication
- Single Serial SPI Interface – SPIA
- Dual Time-Base functions for generation of fixed time interrupt signals
- Low Voltage Reset function
- Low Voltage Detect function
- Package type: 48-pin LQFP
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