HT46R01B/02B/01N/02N & HT48R01B/02B/01N/02N -- Small Package 8-Bit OTP MCU Operating voltage: fSYS= 4MHz: 2.2V~5.5V fSYS= 8MHz: 3.0V~5.5V fSYS= 12MHz: 4.5V~5.5V Up to 0.33μs instruction cycle with 12MHz system clock at VDD= 5V Sleep mode and wake-up functions to reduce power consumption Oscillator types: External high frequency Crystal External RC Internal RC External low frequency crystal Watchdog Timer internal RC oscillator Three operational modes: Normal, Slow, Sleep Fully integrated internal 4MHz, 8MHz and 12MHz oscillator requires no external components OTP Program Memory: 1Kx15 ~ 2Kx15 RAM Data Memory: 96x8 Watchdog Timer function LIRC oscillator function for watchdog timer All instructions executed in one or two instruction cycles Table read instructions 63 powerful instructions 6-level subroutine nesting Bit manipulation instruction Low voltage reset function 10-pin MSOP, 16-pin NSOP package types