HT82A821R

www.DataSheet4U.com HT82A821R Basic USB Speaker OTP MCU 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 endpoints supported (endpoint 0 included) · Support 1 Control , 1 Interrupt , 1 Isochronous transfer 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 samp...