INTRODUCTION
The ST7272 HCMOS Microcontroller Unit is a member of the ST7 family of Microcontroller. The device is based on an industry-standard 8-bit core and features an enhanced instruction set. Oscillator frequency can be as high as 8MHz, however, thanks to the fully static design, operation is possible down to DC. Under software control, the ST7272 may be placed in either WAIT or HALT modes, thus reducing power consumption.