BH66F2475
CGM Flash MCU with OCDS
The device is a Flash Memory 8-bit high performance RISC architecture microcontroller device
with Continuous Glucose Meter (CGM) AFE module that specifically designed for Glucose Meter
applications.
For memory features, the Flash Memory offers users the convenience of Flash Memory
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 24-bit Delta Sigma A/D converter, four 12-bit D/A
converters, three internal operational amplifiers and one comparator. 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, UART and I2
C interface
functions, three popular interfaces which provide designers with a means of easy comminucation
with external peripheral hardware. Protective features such as an internal Watchdog Timer and
Low Voltage Reset coupled with excellent noise immunity and ESD protection ensure that reliable
operation is maintained in hostile electrical environments.
A full choice of internal high and low oscillator functions are provided including 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, Internal LDO, 24-bit Delta Sigma A/D converter, 12-bit D/A Converters and operational amplifiers, etc. The inclusion of flexible I/O programming features, 16-bit MDU, 16-bit Cyclic Redundancy Check function, Time Base functions along with many other features enhance the versatility of the device to suit for Glucose Meter applications.
Product Details
- • Operating Voltage
♦ fSYS=4MHz: 2.2V~5.5V
♦ fSYS=8MHz: 2.2V~5.5V
♦ fSYS=12MHz: 2.7V~5.5V
• Up to 0.33μs instruction cycle with 12MHz system clock at VDD=5V
• Power down and wake-up functions to reduce power consumption
• Oscillator Types
♦ 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
• 16-level subroutine nesting
• Bit manipulation instruction
- • Flash Program Memory: 32K×16
• Data Memory: 2048×8
• True EEPROM Memory: 2048×8
• In Application Programming function – IAP
• Watchdog Timer function
• 9 bidirectional I/O lines
• 4 external interrupt lines shared with I/O pins
• Multiple Timer Modules for time measure, input capture, compare match output, PWM output
function or single pulse output function
• Dual Time Base functions for generation of fixed time interrupt signals
• Glucose Meter AFE circuit
♦ Multi-channel 24-bit resolution Delta Sigma A/D Converter
♦ Internal Reference Voltage Generator
♦ Four 12-bit D/A Converters
♦ 3 internal Operational Amplifiers
♦ 1 comparator function
♦ Internal LDO
• Serial Interface Module – SIM for SPI or I2
C interface
• Fully-duplex/Half-duplex Universal Asynchronous Receiver and Transmitter Interface – UART
• Integrated Multiplier/Divider Unit – MDU
• Integrated 16-bit Cyclic Redundancy Check function – CRC
• Low voltage reset function
• Package types: 16/24-pin QFN
HT8 Type MCU debug adapter
e-Link: Holtek OCDS/ICP adaptor Buy from a dealer
HT8 Flash MCU Production Writer
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