Part No.

 VDD System Clock Endpoint Transfer FIFO
(Byte) 		Program
Memory 		Data
Memory 		I/O A/D D/A Power AMP Other Package
HT82A821R 3.3V~
5.5V		 6MHz or 12MHz EP0 CTL 8 2Kx15 192x8 8 -- 48kHz
16-bit x2		 4Wx2 -- 24SOP/SSOP
EP1 INT 8
EP2 ISO(O) 384
HT82A822R 3.3V~
5.5V		 6MHz or 12MHz EP0 CTL 8 4Kx15 704x8+
512x8(read only)		 24 -- 48kHz
16-bit x2		 4Wx2 -- 48SSOP
EP1 INT 8
EP2 ISO(O) 384
HT82A824R* 3.3V~
5.5V		 6MHz or 12MHz EP0 CTL 8 8Kx16 864x8+
512x8(read only)		 23 -- 44.1/48kHz 16-bit x2 32Wx2 ADCx6, SPI,
PFD,UART Attenuatorx2, AUDIO_INx2		 48SSOP, 48LQFP
EP1, EP4 INT 8, 32
EP2 ISO(O) 384
EP5, EP6 BUK 32, 64
HT82A834R 3.3V~
5.5V		 6MHz or 12MHz EP0 CTL 8 4Kx15 192x8 24 16kHz
16-bit
 		 48kHz
16-bit x2		 4Wx2 SPI,
PFD,
MUSIC_IN		 48SSOP, 48LQFP
EP1, EP4 INT 8, 32
EP2 ISO(O) 384
EP3 ISO(I) 64
HT82A836R 3.3V~
5.5V		 6MHz or 12MHz EP0 CTL 8 8Kx16 384x8 44 16kHz
16-bit		 48kHz
16-bit x2		 4Wx2 ADCx6,
PWMx2,
SPI,
PFD,
MUSIC_IN		 80LQFP,
100QFP
EP1, EP4 INT 8, 32
EP2 ISO(O) 384
EP3 ISO(I) 64
HT82A850R 3.3V~
5.5V		 6MHz, 12MHz or 16MHz -- -- -- 4Kx15 384x8 24 8kHz 16-bit 8kHz
16-bit x2		 4Wx2 SPI, PFD, MUSIC_IN 48LQFP
HT82A851R 3.3V~
5.5V		 6MHz, 12MHz or 16MHz EP0 CTL 8 4Kx15 384x8 16 -- -- -- SPI,PFD 24SSOP
EP1, EP4 INT 8, 32
EP2 ISO(O) 384
EP3 ISO(I) 32
* Under development, available 4Q, 2009.
Note: These devices are only available in OTP versions.