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ATXMEGA256D3 Datasheet, PDF (28/98 Pages) ATMEL Corporation – 8/16-bit AVR XMEGA D3 Microcontroller
Figure 14-4. I/O configuration - Totem-pole with bus-keeper
XMEGA D3
14.3.5 Others
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Figure 14-5. Output configuration - Wired-OR with optional pull-down
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Figure 14-6. I/O configuration - Wired-AND with optional pull-up
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8134G–AVR–08/10