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AT90USB646 Datasheet(PDF) 432 Page - ATMEL Corporation

Part # AT90USB646
Description  Microcontroller with 64/128K Bytes of ISP Flash and USB Controller
PDF  434 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT90USB646 Datasheet(HTML) 432 Page - ATMEL Corporation

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7
7593A–AVR–02/06
AT90USB64/128
28
Boot Loader Support – Read-While-Write Self-Programming ......... 352
28.1
Boot Loader Features ......................................................................................352
28.2
Application and Boot Loader Flash Sections ...................................................352
28.3
Read-While-Write and No Read-While-Write Flash Sections ..........................352
28.4
Boot Loader Lock Bits ......................................................................................355
28.5
Entering the Boot Loader Program ..................................................................356
28.6
Addressing the Flash During Self-Programming ..............................................360
28.7
Self-Programming the Flash ............................................................................361
29
Memory Programming ......................................................................... 368
29.1
Program And Data Memory Lock Bits ..............................................................368
29.2
Fuse Bits ..........................................................................................................369
29.3
Signature Bytes ................................................................................................371
29.4
Calibration Byte ................................................................................................371
29.5
Parallel Programming Parameters, Pin Mapping, and Commands .................371
29.6
Parallel Programming ......................................................................................374
29.7
Serial Downloading ..........................................................................................382
29.8
Serial Programming Pin Mapping ....................................................................383
29.9
Programming via the JTAG Interface ...............................................................387
30
Electrical Characteristics .................................................................... 400
30.1
Absolute Maximum Ratings* ............................................................................400
30.2
DC Characteristics ...........................................................................................400
30.3
External Clock Drive Waveforms .....................................................................402
30.4
External Clock Drive ........................................................................................402
30.5
Maximum speed vs. V
CC ........................................................................................................................ 402
30.6
2-wire Serial Interface Characteristics .............................................................403
30.7
SPI Timing Characteristics ...............................................................................405
30.8
Hardware Boot EntranceTiming Characteristics ..............................................406
30.9
ADC Characteristics – Preliminary Data ..........................................................407
30.10 External Data Memory Timing .........................................................................408
31
Register Summary ............................................................................... 414
32
Instruction Set Summary .................................................................... 418
33
Ordering Information ........................................................................... 421
34
Packaging Information ........................................................................ 422
34.1
TQFP64 ...........................................................................................................423



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