HT82A851R - Holtek Semiconductor

HT82A851R USB Audio MCU

The HT82A851R is an 8-bit high performance RISC-like microcontroller designed for wireless USB Phone product applications. The HT82A851R combines a SPI, USB transceiver, SIE (Serial Interface Engine), audio class processing unit, FIFO and an 8-bit MCU into a single chip. The play frequency in the HT82A851R operates at a sampling rate of 48/8kHz. HT82A851R ha.

Features

· Operating voltage: fSYS = 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 compatible
· USB spec V1.1 full speed operation and USB audio consumption
· Watchdog Timer
· 16-level subrouti.