BH67F5265/BH67F5275

24-Bit A/D LCD Flash MCU

General Information

The devices are Flash Memory A/D type 8-bit high performance RISC architecture microcontrollers which include a multi-channel 24-bit Delta Sigma A/D 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. 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 with both single and differential inputs and a fully integrated LCD driver. 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 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.

The inclusion of flexible I/O programming features, Time-Base funcitons along with many other features enhance the versatility of the devices to suit for applications that interface directly to analog signals which require a low noise and high accuracy analog to digital converter.

 

CPU Features

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 clockAvailable
Power down and wake-up functions to reduce power consumptionAvailable
Oscillator types
  • External High Speed Crystal – HXT
  • Internal High Speed 4/8/12MHz RC – HIRC
  • External Low Speed 32.768kHz Crystal – LXT
  • Internal Low Speed 32kHz RC – LIRC
Multi-mode operation

FAST, SLOW, IDLE and SLEEP

Fully integrated internal oscillators require no external componentsAvailable
All instructions executed in 1~3 instruction cyclesAvailable
Table read instructionsAvailable
115 powerful instructionsAvailable
16-level subroutine nestingAvailable
Bit manipulation instructionAvailable

Peripheral Features

Flash Program Memory

16K×16~32K×16

Data Memory

1024×8~2048×8

True EEPROM Memory

1024×8~2048×8

In Application Programming function – IAPAvailable
Internal On-Chip Debug Support function – OCDS, only available for BH67F5275 and BH67V5265Available
Watchdog Timer functionAvailable
Up to 57 bidirectional I/O linesAvailable
Programmable I/O source current for LED applicationsAvailable
Two external interrupt lines shared with I/O pinsAvailable
Multiple Timer Modules for time measure, input capture, compare match output, PWM output function or single pulse output function
  • One 16-bit Standard Type TM – STM
  • Three 10-bit Periodic Type TMs – PTM0~PTM2
  • One 10-bit Audio Type TM – ATM, only available for BH67F5275
Serial Interface Module – SIM includes SPI and I²C interfacesAvailable
Single Serial Peripheral Interface – SPIAvailable
Fully-duplex / Half-duplex Universal Asynchronous Receiver and Transmitter Interface – UARTAvailable
Dual Time-Base functions for generation of fixed time interrupt signalsAvailable
3 differential or 6 single-end external channel 24-bit resolution Delta Sigma A/D converterAvailable
LCD Driver function
  • SEGs×COMs: 30×4, 28×6 or 26×8 for BH67F5265
  • SEGs×COMs: 44×4, 42×6 or 40×8 for BH67F5275
  • 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
Integrated Multiplier/Divider Unit – MDUAvailable
Integrated 16-bit Cyclic Redundancy Check function – CRCAvailable
Low voltage reset functionAvailable
Low voltage detect functionAvailable
Wide range of available package typesAvailable

Resources

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