The Enhanced A/D MCUs are a series of 8-bit high performance, RISC architecture microcontrollers specifically designed for a wide range of applications. The usual Holtek microcontroller features of low power consumption, I/O flexibility, timer functions, oscillator options, power down and wake-up functions, watchdog timer and low voltage reset, combine to provide devices with a huge range of functional options while still maintaining a high level of cost effectiveness. The fully integrated system oscillator HIRC, which requires no external components and which has three frequency selections, opens up a huge range of new application possibilities for these devices, some of which may include industrial control, consumer products, household appliances subsystem controllers, etc.

Peripheral Features
• Up to 26 bidirectional I/O lines
• Up to 8 channel 12-bit ADC
• Up to 2 channel 8-bit PWM
• Software controlled 4-SCOM lines LCD driver with 1/2 bias
• External interrupt input shared with an I/O line
• Up to two 8-bit programmable Timer/Event Counter with overflow interrupt and prescaler
• Time-Base function
• Programmable Frequency Divider - PFD

Feature