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    | Partname: | ST72T251G2M3 |  
    | Description: | 8-BIT MCU WITH 4 TO 8K ROM/OTP/EPROM, 256 BYTES RAM, ADC, WDG, SPI, I2C AND 2 TIMERS |     
    | Manufacturer: | SGS-Thomson Microelectronics |  
    | Datasheet: | PDF (66.7K). Click here to download *) |  
    The goal of this application note is to present an example of the use of the HALT mode. In this application, the MCU (here a ST72251) is waked up by an external interrupt caused by someone pressed a key on the 4x4 matrixed keypad.  |  
    
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    Click here to download ST72T251G2M3 Datasheet*) | 
  
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