HT68F2420 Datasheet | Holtek Semiconductor

Features CPU Features - Operating Voltage - f SYS=4MHz: 1.8V~5.5V - Up to 1µs instruction cycle with 4MHz system clock at VDD=5V - Power down and wake-up functions to reduce power consumption - Oscillator - Internal high speed 4MHz RC - HIRC - Internal Low speed 32k Hz RC - LIRC - Multi-mode operation: FAST, SLOW, IDLE and SLEEP - Fully integrated internal oscillators require no external ponents - All instructions executed in one or two instruction cycles - Table read instructions - 61 powerful instructions - 2-level subroutine nesting - Bit manipulation instruction Peripheral Features - Flash Program Memory: 1K×13 - Data Memory: 32×8 - Watchdog Timer function - 16 bidirectional I/O lines - One programmable carrier output - using 9-bit timer - High Driving Current Output pin - One Time-Base function for generation of fixed time interrupt signals - Flash program memory can be re-programmed up to 10,000 times - Flash program memory data retention > 10 years - Low voltage reset function - Package types: 8-pin SOP, 16-pin NSOP, 20-pin SSOP Development Tools For rapid product development and to simplify device parameter setting, Holtek has provided relevant development tools which users can download from the following link: https://.holtek./page/tool-detail/dev_plat/ha/IR_Remote_Controller_Workshop Rev. 1.20 September 18, 2025 HT68F2420 High Precision HIRC Flash MCU General Description The HT68F2420 device is a Flash Memory type 8-bit high performance RISC architecture microcontroller designed for IR remote controllers and IR transmission related products. For memory...