Holtek Semiconductor HT82A821R
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.| Part No. | HT82A821R |
|---|---|
| Datasheet | HT82A821R Download |
| Manufacturer |  Holtek Semiconductor |
| Description | Basic USB Speaker OTP MCU |
| Buy | Stock & Price |
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 (max.)
● Two 16-bit programmable timer/event counter and playback
● Embedded class AB power amplifier for speaker overflow interrupts
● Watchdog Timer
● 16-level subroutine nesting
● Bit manipulation instruction
● 15-bit table read instruction
● 63 powerful instructions
● All instructions in one or two machine cycles
● 24-pin SSOP (150mil), 24-pin SOP (300mil) package driving
● Embedded High Performance 16 bit audio DAC
● Support digital volume control
● HID support which can remote control of playback volume/mute
● 3 endpoint...
