HT66F40 Datasheet | Holtek Semiconductor

Features CPU Features - Operating Voltage: Peripheral Features - Flash Program Memory: 1K´14 ~ 12K´16 - RAM Data Memory: 64´8 ~ 576´8 - EEPROM Memory: 32´8~256´8 - Watchdog Timer function - Up to 50 bidirectional I/O lines - Software controlled 4-S lines LCD driver with - - - - - - - - - - f SYS= 8MHz: 2.2V~5.5V f SYS= 12MHz: 2.7V~5.5V f SYS= 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 Five oscillators: External Crystal -- HXT External 32.768k Hz Crystal -- LXT External RC -- ERC Internal RC -- HIRC Internal 32k Hz RC -- LIRC Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP Fully integrated internal 4MHz, 8MHz and 12MHz oscillator requires no external ponents All instructions executed in one or two instruction cycles Table read instructions 63 powerful instructions Up to 12-level subroutine nesting Bit manipulation instruction 1/2 bias - Multiple pin-shared external interrupts - Multiple Timer Module for time measure, input - - - - - - capture, pare match output, PWM output or single pulse output function Serial Interfaces Module -- SIM for SPI or I2C Dual parator functions Dual Time-Base functions for generation of fixed time interrupt signals Multi-channel 12-bit resolution A/D converter Low voltage reset function Low voltage detect function asynchronous munication - Optional peripheral -- UART module for fully duplex - Wide range of available package types General Description The HT66FXX series of devices are Flash Memory A/D 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 as well as an area of EEPROM memory for storage of non-volatile data such as serial numbers, calibration data etc. Analog features include a multi-channel 12-bit A/D converter and dual...