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.

• Operating voltage:
  f_SYS=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 V_DD=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