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AT90USB646 датащи(PDF) 4 Page - ATMEL Corporation |
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AT90USB646 датащи(HTML) 4 Page - ATMEL Corporation |
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4 / 456 page ![]() 4 7593L–AVR–09/12 AT90USB64/128 Figure 1-2. Pinout Atmel AT90USB64/128-QFN. Note: The large center pad underneath the MLF packages is made of metal and internally connected to GND. It should be soldered or glued to the board to ensure good mechanical stability. If the center pad is left unconnected, the package might loosen from the board. 2 3 1 4 5 6 7 8 9 10 11 12 13 14 16 33 15 47 46 48 45 44 43 42 41 40 39 38 37 36 35 34 AT90USB128/64 (64-lead QFN top view) INDEX CORNER (INT.7/AIN.1/UVcon) PE7 UVcc D- D+ UGnd UCap VBus (IUID) PE3 (SS/PCINT0) PB0 (INT.6/AIN.0) PE6 (PCINT1/SCLK) PB1 (PDI/PCINT2/MOSI) PB2 (PDO/PCINT3/MISO) PB3 (PCINT4/OC.2A) PB4 (PCINT5/OC.1A) PB5 (PCINT6/OC.1B) PB6 PA3 (AD3) PA4 (AD4) PA5 (AD5) PA6 (AD6) PA7 (AD7) PE2 (ALE/HWB) PC7 (A15/IC.3/CLKO) PC6 (A14/OC.3A) PC5 (A13/OC.3B) PC4 (A12/OC.3C) PC3 (A11/T.3) PC2 (A10) PC1 (A9) PC0 (A8) PE1 (RD) PE0 (WR) |
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