Features - Holtek HT66F20 Manual

HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM

Features

CPU Features
• Operating Voltage:
f =8MHz: 2.2V~5.5V
♦
SYS
f =12MHz: 2.7V~5.5V
♦
SYS
f =20MHz: 4.5V~5.5V
♦
SYS
• Up to 0.2μs instruction cycle with 20MHz system clock at V
• Power down and wake-up functions to reduce power consumption
• Five oscillators:
External Crystal -- HXT
♦
External 32.768kHz Crystal -- LXT
♦
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 12-level subroutine nesting
• Bit manipulation instruction
Rev. 2.50
=5V
DD
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