HT82K74EE

HT82K74E/HT82K74EE 27MHz Keyboard/ Mouse TX 8-Bit MCU Technical Document · Application Note - HA0075E MCU Reset and Oscillator Circuits Application Note Features · Operating voltage: · 128´8 bits data EEPROM for HT82K74EE · One external crystal (27MHz) to supply fSYS= 27MHz: 3.0V~3.3V for crystal mode · Program Memory: 2K´15 bits · Data Memory: 96´8 bits · 36 bidirectional I/O lines, with pull-high options · Watchdog Timer function · Single 16-bit internal timer with overflow interrupt microcontroller system clock · 63 powerful instructions · All instructions executed in one or two machine cycles · Low voltage reset function · Crystal oscillator which built-in capacitor value can and timer input · Power down and wake-up functions to reduce configure by firmwave OSCC register · Two bit to define microcontroller system clock power consumption · 4-level subroutine nesting · Bit manipulation instruction · Table read instructions · Built-in DC/DC to provide stable (2.8V, 3.0V, 3.3V (fSYS/1, fSYS/4, fSYS/8, fSYS/16) · HT82K74E: 28-pin SSOP, 32-pin QFN and 48-pin SSOP/LQFP packages · HT82K74EE: use configuration option) DC_DC 3.0V with error ±0.1V · 2.2V/2.0V with ± 0.1V tolerance or 1.8V Low battery 28-pin SSOP and 48-pin SSOP/LQFP packages detector with internal bit set, it detects the BAT-in input voltage General Description The device is an 8-bit high performance, RISC architecture microcontroller devices specifically designed for multiple I/O control product applic...