BH66F2470 Datasheet, PDF (9/223 Pages) Holtek Semiconductor Inc – Glucose Meter Flash MCU

BH66F2470
Glucose Meter Flash MCU
General Description
The BH66F2470 device is a Flash Memory 8-bit high performance RISC architecture
microcontroller designed specifically for Glucose Meter applications.
Offering users the convenience of Flash Memory multi-programming features, the device also
includes a wide range of functions and 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 Holtek’s In Application Programming technology, users have
a convenient means to directly store their measured data in the Flash Promgram Memory as well as
having the ability to easily update their application programs.
Analog features include a multi-channel 12-bit A/D converter, a 10-bit D/A converter, an internal
operational amplifier and an Over Voltage Protection function. 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 high and low oscillators 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.
With regard to Glucose Meter applications, the device has integrated many of the functions required
by these products. These include functions such as an Internal Reference Voltage Generator, a 10-
bit D/A Converter, an Over Voltage Protection function, an integrated Multiplication/Division Unit
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 cost effective MCU solutions for
Glucose Meter applications.
Rev. 1.00
9
March 15, 2017