HT82A851R Datasheet | Holtek Semiconductor

HT82A851R USB Audio MCU Features - Operating voltage: f SYS = 6M/12MHz: 3.3V~5.5V - 16 bidirectional I/O lines (max.) - Two 16-bit programmable timer/event counters and - Two hardware implemented Isochronous transfers - Total FIFO size: 464 bytes (8, 8, 384, 32, 32 for EP0~EP4) - Programmable frequency divider (PFD) - Integrated SPI hardware circuit - Play/Record Interrupt - HALT and wake-up Features reduce power overflow interrupts - 4096´15 program memory ROM - 384´8 data memory RAM (Bank0,1) - USB 2.0 full speed patible - USB spec V1.1 full speed operation and USB audio consumption - Watchdog Timer - 16-level subroutine nesting - Bit manipulation instruction - 15-bit table read instruction - 63 powerful instructions - All instructions executed within one or two machine device class spec V1.0 - Built-in digital PGA (Programmable Gain Amplifier) - 48k Hz/8k Hz sampling rate for audio playback controlled by software option - 8k Hz audio recording sampling rate - Supports audio playback digital volume control - 5 endpoints supported (endpoint 0 included) - Supports 1 Control, 2 Interrupt, 2 Isochronous cycles - Low voltage reset function (3.0V±0.3V) - 24-pin SSOP package...