BH67F2762

24-bit Delta Sigma A/D Flash MCU with LCD and OPA

General Information

The BH67F2762 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, designed for applications that interface directly to analog signals and 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 24-bit Delta Sigma A/D Converter and Operational Amplifier fucntions. Extremely flexible Timer Modules provide timing, pulse generation and PWM generation functions. Communication with the outside world is implemented using fully integrated I2C, SPI and UART interfaces, 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 and internal low and high 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.

The inclusion of flexible I/O programming features, Time Base functions along with many other features ensure that the device will find excellent use in applications such as weight scales, electronic metering, environmental monitoring, handheld instruments, household appliances, electronically controlled tools, motor driving in addition to many others.

 

CPU Features

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 =5VAvailable
Power down and wake-up functions to reduce power consumptionAvailable
Oscillators
  • - Internal High Speed 4/8/12MHz RC Oscillator – HIRC
  • - Internal Low Speed 32kHz RC Oscillator – LIRC
  • - External Low Speed 32.768kHz Crystal – LXT
Fully integrated internal oscillators require no external componentsAvailable
Multi-mode operation

FAST, SLOW, IDLE and SLEEP

All instructions executed in 1~3 instruction cyclesAvailable
Table read instructionsAvailable
115 powerful instructionsAvailable
8-level subroutine nestingAvailable
Bit manipulation instructionAvailable

Peripheral Features

Flash Program Memory

16K×16

RAM Data Memory

1024×8

True EEPROM Memory

256×8

In Application Programming – IAPAvailable
Watchdog Timer functionAvailable
Up to 38 bidirectional I/O linesAvailable
Four pin-shared external interruptsAvailable
4 differential or 8 single-end channels 24-bit resolution Delta Sigma A/D converterAvailable
Multiple Timer Modules for time measurement, input capture, compare match output, PWM output function or single pulse output functionAvailable
LCD Driver function
  • - SEGs×COMs: 39×4 or 37×6
  • - Duty type: 1/4 duty or 1/6 duty
  • - Bias level: 1/3 bias
  • - Bias type: R type
  • - Waveform type: type A or type B
Universial Serial Interface Module – USIM for SPI, I2C or UART communicationAvailable
Dual Time Base functions for generation of fixed time interrupt signalsAvailable
Low Voltage Reset function – LVRAvailable
Low Voltage Detect function – LVDAvailable
Package types

48/64-pin LQFP

Resources

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