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HT82A821R - Basic USB Speaker OTP MCU

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General Description

This HT82A821R is an 8-bit high performance RISC-like microcontroller designed for USB Speaker product applications.

The HT82A821R combines a 16-bit DAC, USB transceiver, SIE (Serial Interface Engine), audio class processing unit, FIFO, 8-bit MCU into a single chip.

The DAC in the HT82A821R is operating at the 48kHz sampling rate.

Overview

www.DataSheet4U.com HT82A821R Basic USB Speaker OTP MCU.

Key Features

  • USB 2.0 full speed compatible.
  • USB spec v1.1 full speed operation and USB audio.
  • Total FIFO size are 400 byte (8, 8, 384 for EP0~EP2).
  • 2048´15 program memory ROM.
  • 192´8 MCU type data memory RAM (Bank0).
  • HALT function and wake-up feature reduce power device class spec v1.0.
  • Operating voltage: fSYS= 6MHz/12MHz: 4.0V~5.5V.
  • Low voltage reset function (3.0V±0.3V).
  • High-performance 48kHz sampling rate for audio consumption.
  • 8 bidirectional I/O lines.

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