General Description:
      HT8277 MCU is an easy-used 4-bit CPU base microcontroller. It
contains 1984-word ROM(MTP), 144-nibble RAM, timer/counter, time base,
watch dog timer, PWM, interrupt service, IO control hardware, LVR and
touch pad feature for specified applications. The device is also suitable for
diverse simple applications in control appliance and consumer product.