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HT82B40R Datasheet I/O 8-Bit MCU

Manufacturer: Holtek Semiconductor

Download the HT82B40R datasheet PDF. This datasheet also includes the HT82B40A variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (HT82B40A_HoltekSemiconductor.pdf) that lists specifications for multiple related part numbers.

Overview

HT82B40R/HT82B40A I/O 8-Bit MCU with USB Interface.

Key Features

  • Operating voltage: fSYS=6M/12MHz: 3.3V~5.5V.
  • Low voltage reset function.
  • 34 bidirectional I/O lines (max. ).
  • 8-bit programmable timer/event counter with overflow interrupt.
  • 16-bit programmable timer/event counter with overflow interrupt.
  • Watchdog Timer.
  • PS2 and USB modes supported.
  • USB 2.0 low speed function.
  • 3 endpoints supported - endpoint 0 included.
  • 4096´15 program memory.
  • 160´8 data memory RAM.
  • Integrated 1.5kW resistor between V33.