AT90USB646 datasheet(433/435 Pages) ATMEL

433 / 435 page

7593D–AVR–07/06

AT90USB64/128

28.3Read-While-Write and No Read-While-Write Flash Sections ..............................352

28.4Boot Loader Lock Bits .........................................................................................355

28.5Entering the Boot Loader Program ......................................................................356

28.6Addressing the Flash During Self-Programming .................................................360

28.7Self-Programming the Flash ................................................................................361

Memory Programming ......................................................................... 368

29.1Program And Data Memory Lock Bits .................................................................368

29.2Fuse Bits ..............................................................................................................369

29.3Signature Bytes ...................................................................................................371

29.4Calibration Byte ...................................................................................................371

29.5Parallel Programming Parameters, Pin Mapping, and Commands .....................371

29.6Parallel Programming ..........................................................................................374

29.7Serial Downloading ..............................................................................................382

29.8Serial Programming Pin Mapping ........................................................................383

29.9Programming via the JTAG Interface ..................................................................387

Electrical Characteristics .................................................................... 400

30.1Absolute Maximum Ratings* ...............................................................................400

30.2DC Characteristics ...............................................................................................400

30.3External Clock Drive Waveforms .........................................................................402

30.4External Clock Drive ............................................................................................402

30.5Maximum speed vs. V

CC ..............................................................................................................................402

30.62-wire Serial Interface Characteristics .................................................................403

30.7SPI Timing Characteristics ..................................................................................405

30.8Hardware Boot EntranceTiming Characteristics ..................................................406

30.9ADC Characteristics – Preliminary Data ..............................................................407

30.10External Data Memory Timing ...........................................................................408

Instruction Set Summary ..................................................................... 418

Ordering Information ........................................................................... 421

33.1TQFP64 ...............................................................................................................422

33.2QFN64 .................................................................................................................423

Errata ..................................................................................................... 424

34.1Rev B ...................................................................................................................424

34.2Rev A ...................................................................................................................424

AT90USB646 Datasheet(PDF) 433 Page - ATMEL Corporation