HT66F4540 Datasheet | Holtek Semiconductor

Features CPU Features - Operating Voltage: - f SYS=4MHz: 2.2V~5.5V - f SYS=8MHz: 2.2V~5.5V - f SYS=12MHz: 2.7V~5.5V - Up to 0.33μs instruction cycle with 12MHz system clock at VDD=5V - Power down and wake-up functions to reduce power consumption - Oscillator types: - External High Speed Crystal - HXT - Internal High Speed RC - HIRC - External Low Speed 32.768k Hz Crystal - LXT - Internal Low Speed 32k Hz RC - LIRC - Multi-mode operation: FAST, SLOW, IDLE and SLEEP - Fully integrated internal 2MHz, 4MHz and 8MHz oscillator requires no external ponents - All instructions executed in 1~3 instruction cycles - Table read instructions - 115 powerful instructions - Up to 16-level subroutine nesting - Bit manipulation instruction Peripheral Features - Program Memory: 2K×16~16K×16 - Data Memory: 128×8~512×8 - True EEPROM Memory: 32×8~128×8 - Watchdog Timer function - Up to 46 bidirectional I/O lines - Two external interrupt lines shared with I/O pins - Two operational amplifiers, two parators and three 8-bit D/A converters - Software controlled 4-S lines LCD driver with 1/2 bias - HT66F4540/50/60 - Multiple Timer Modules for time measure, input capture, pare match output, PWM output or single pulse output function - Dual Time-Base functions for generation of fixed time interrupt signals - Serial Interface Module - SPI or I2C - UART Interface for fully duplex asynchronous munication - HT66F4540/50/60...