General Description

The HT68F1x series of devices are Flash Memory I/O type 8-bit high performance RISC architecture

microcontrollers. Offering users the convenience of Flash Memory multi-programming features, these devices also include a wide range of functions and features. Other memory includes an area of RAM Data Memory for application program data storage.

Features

CPU Features

· Operating Voltage:

fSYS= 8MHz: 2.2V~5.5V

fSYS= 12MHz: 2.7V~5.5V

fSYS= 20MHz: 4.5V~5.5V

· Up to 0.2ms instruction cycle with 20MHz system clock at VDD=5V

· Power down and wake-up functions to reduce power consumption

· Four oscillators:

External Crystal -- HXT

External RC -- ERC

Internal RC -- HIRC

Internal 32kHz RC -- LIRC

· Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP

· Fully integrated internal 4MHz, 8MHz and 12MHz oscillator requires no external components

· All instructions executed in one or two instruction cycles

· Table read instructions

· 63 powerful instructions

· Up to 8-level subroutine nesting

· Bit manipulation instruction

Peripheral Features

· Flash Program Memory: 1K´14 ~ 4K´15

· RAM Data Memory: 64´8 ~ 192´8

· Watchdog Timer function

· Up to 26 bidirectional I/O lines

· Software controlled 4-SCOM lines LCD driver with 1/2 bias

· Multiple pin-shared external interrupts

· Multiple Timer Module for time measure, input capture, compare match output, PWM output or single pulse output function

· Single Time-Base function for generation of fixed time interrupt signal

· Low voltage reset function

· Low voltage detect function

· Wide range of available package types