Holtek Semiconductor HT66F007
the HT66F008 device, although mentioned in this datasheet, has already been phased out and is presently no longer available.FEATURES
CPUFEATURES
● Operating Voltage ♦ fSYS=8MHz: 2.2V~5.5V ♦ fSYS=12MHz: 2.7V~5.5V ♦ fSYS=16MHz: 3.3V~5.5V ♦ fSYS=20MHz: 4.5V~5.5V● Up to 0.2μs instruction cycle with 20MHz system clock at VDD=5V
● Power down and wake-up functions to reduce power consumption
● Three Oscillators ♦ External Crystal -- HXT ♦ Internal RC -- HIRC ♦ Internal 32kHz -- LIRC
● Fully intergrated internal 4MHz, 8MHz, 12MHz oscillator requires no external components
● Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP
● All instructions executed in one or two instruction cycles
● Table read instructions
● 63 powerful instructions
● 8-level subroutine nesting
● Bit manipulation instruction Peripheral
FEATURES
● Flash Program Memory: 2K×16 ~ 4K×16● RAM Data Memory: 160×8 ~ 256×8
● True EEPROM Memory: 512×8 ~ 1024×8
● Watchdog Timer function
● 8 bidirectional I/O lines
● One pin-shared external interrupt
● Multiple Timer Module for time measure, compare match output, PWM output function or single pulse output...