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AT90USB646 Datasheet(PDF) 457 Page - ATMEL Corporation

Part # AT90USB646
Description  8-bit Microcontroller with 64/128K Bytes of ISP Flash and USB Controller
PDF  459 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT90USB646 Datasheet(HTML) 457 Page - ATMEL Corporation

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7593H–AVR–11/08
ATmega32U6/AT90USB64/128
28.5 Entering the Boot Loader Program ....................................................................353
28.6 Addressing the Flash During Self-Programming ...............................................357
28.7 Self-Programming the Flash ..............................................................................358
29
Memory Programming ......................................................................... 366
29.1 Program And Data Memory Lock Bits ...............................................................366
29.2 Fuse Bits ............................................................................................................367
29.3 Signature Bytes .................................................................................................369
29.4 Calibration Byte .................................................................................................369
29.5 Parallel Programming Parameters, Pin Mapping, and Commands ...................369
29.6 Parallel Programming ........................................................................................372
29.7 Serial Downloading ............................................................................................380
29.8 Serial Programming Pin Mapping ......................................................................381
29.9 Programming via the JTAG Interface ................................................................385
30
Electrical Characteristics for AT90USB64/128 .................................. 398
30.1 Absolute Maximum Ratings* .............................................................................398
30.2 DC Characteristics .............................................................................................398
30.3 External Clock Drive Waveforms .......................................................................400
30.4 External Clock Drive ..........................................................................................400
30.5 Maximum speed vs. VCC ...........................................................................................................................400
30.6 2-wire Serial Interface Characteristics ...............................................................401
30.7 SPI Timing Characteristics ................................................................................403
30.8 Hardware Boot EntranceTiming Characteristics ................................................404
30.9 ADC Characteristics ..........................................................................................405
30.10 External Data Memory Timing .........................................................................407
31
AT90USB64/128 Typical Characteristics .......................................... 412
31.1 Input Voltage Levels ..........................................................................................413
31.2 Output Voltage Levels .......................................................................................414
31.3 Power-down Supply Current ..............................................................................416
31.4 Power-save Supply Current ...............................................................................417
31.5 Idle Supply Current ............................................................................................418
31.6 Active Supply Current ........................................................................................418
31.7 Reset Supply Current ........................................................................................419
31.8 I/O Pull-up Current .............................................................................................419
31.9 Bandgap Voltage ...............................................................................................420
31.10 Internal ARef Voltage ......................................................................................421



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