BH67F2480
Glucose Meter Flash MCU with LCD
The BH67F2480 is a Flash Memory A/D type 8-bit high performance RISC architecture microcontroller, specifically designed for Glucose Meter with LCD display applications.
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. By using the In Application Programming technology, users have a convenient means to directly store their measured data in the Flash Program Memory as well as having the ability to easily update their application programs.
Analog features include a multi-channel 12-bit A/D converter and two internal operational amplifiers. 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, some 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 oscillator functions are 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.
With regard to Glucose Meter applications, the device has integrated many of the functions required by these products. These include functions such as Internal Reference Voltage generator, 12-bit D/A Converter, Over Voltage Protection, Multiplication/Division Unit, LCD driver function etc. The inclusion of flexible I/O programming features, Time-Base functions along with many other features ensure that the device will be highly capable of providing MCU solutions for Glucose Meter applications which include an LCD display.
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:
♦ External High Speed Crystal – HXT
♦ External Low Speed 32.768kHz Crystal – LXT
♦ Internal High Speed 4/8/12MHz RC – HIRC
♦ Internal Low Speed 32kHz RC – LIRC - Fully integrated internal oscillators require no external components
- Multi-mode operation: FAST, SLOW, IDLE and SLEEP
- All instructions executed in 1~3 instruction cycles
- Table read instructions
- 115 powerful instructions
- 12-level subroutine nesting
- Bit manipulation instruction
- Flash Program Memory: 48K×16
- RAM Data Memory: 1024×8
- True EEPROM Memory: 64×8
- Watchdog Timer function
- In Application Programming – IAP
- 46 bidirectional I/O lines
- Programmable I/O port source current for LED applications
- 4 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 - Dual Time-Base functions for generation of fixed time interrupt signals
- Glucose Meter AFE
♦ 6 external channel 12-bit resolution A/D Converter
♦ Internal Reference Voltage Generator
♦ 12-bit D/A Converter
♦ 2 internal Operational Amplifiers - Over Voltage Protection function with interrupt
- Serial Interface Module includes SPI and I²C interfaces
- Single Serial Peripheral Interface – SPIA
- Dual fully-duplex Universal Asynchronous Receiver and Transmitter Interfaces – UART0 and UART1
- 16-bit Multiplication Division Unit – MDU
- LCD Driver function
♦ SEGs × COMs: 48×4, 46×6 or 44×8
♦ Duty type: 1/4 duty, 1/6 duty or 1/8 duty
♦ Bias level: 1/3 bias or 1/4 bias
♦ Bias type: R type or C type
♦ Waveform type: type A or type B - Low Voltage Reset function
- Low Voltage Detect function
- Package type: 80-pin LQFP
HT8 Type MCU debug adapter
e-Link: Holtek OCDS/ICP adaptor Buy from a dealer
HT8 Flash MCU Production Writer
e-WriterPro Buy from a dealer