HT82K95E/HT82K95A -- USB Multimedia Keyboard Encoder 8-Bit MCU

General Description

This device is an 8-bit high performance RISC architecture microcontroller designed for USB product applications. It is particularly suitable for use in products such as keyboards. A HALT feature is included to reduce power consumption. The mask version HT82K95A is fully pin and functionally compatible with the OTP version HT82K95E device.

Features

  • Operating voltage:
    fSYS=6M/12MHz: 3.3V~5.5V
  • Low voltage reset function
  • 32 bidirectional I/O lines (max.)
  • 8-bit programmable timer/event counter with overflow interrupt
  • 16-bit programmable timer/event counter and overflow interrupts
  • Crystal oscillator (6MHz or 12MHz)
  • Watchdog Timer
  • PS2 and USB modes supported
  • USB 2.0 low speed function
  • 3 endpoints supported (endpoint 0 included)
  • 4096×15 program memory ROM
  • 160×8 data memory RAM
  • All I/O ports support wake-up options
  • HALT function and wake-up feature reduce power consumption
  • 8-level subroutine nesting
  • Up to 0.33us instruction cycle with 12MHz system clock at VDD=5V
  • Bit manipulation instruction
  • 15-bit table read instruction
  • 63 powerful instructions
  • All instructions in one or two machine cycles
  • 28-pin SOP, 32-pin QFN, 48-pin SSOP/LQFP package

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