HT82K72A

HT82K72E/HT82K72A One Channel Keyboard with R-F Type MCU Technical Document · Tools Information · FAQs · Application Note - HA0075E MCU Reset and Oscillator Circuits Application Note Features · Operating voltage: · 36 I/O bi-directional lines with pull-high options · Supports max. 20´8 keyboard applications · Power down and wake-up functions to reduce power fSYS= 27MHz: 2.0V~3.3V · 36 bidirectional I/O lines · Watchdog Timer function · Single 16-bit internal timer with overflow interrupt and consumption · 4-level subroutine nesting · Bit manipulation instruction · Table read instructions · 63 powerful instructions · All instructions executed in one or two machine cy- timer input · Integrated high-drive CMOS inverter 27MHz ampli- fier · 27MHz or 6MHz external crystal oscillator · Two bit to define micro-controller system clock (fSYS/1, fSYS/4, fSYS/8, fSYS/16) · PC6/RF data is defined as RF data out cles · Low voltage reset function · 48 SSOP package General Description The device is an 8-bit high performance, RISC architecture microcontroller devices specifically designed for multiple I/O control product applications. With its internal 27MHz amplifier the device is suitable for applications such as 27MHz or 2.4GHz keypads etc. The advantages of low power consumption, I/O flexibility, timer functions, oscillator options, Power Down and wake-up functions, Watchdog timer, motor driving, industrial control, consumer products, subsystem controllers, etc. Block Diagram www...