atxmega128a4-mu ATMEL Corporation, atxmega128a4-mu Datasheet - Page 23
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atxmega128a4-mu
Manufacturer Part Number
atxmega128a4-mu
Description
Atxmega16a4 8/16-bit Avr Xmega Microcontroller
Manufacturer
ATMEL Corporation
Datasheet
1.ATXMEGA128A4-MU.pdf
(58 pages)
- Current page: 23 of 58
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14.3.1
14.3.2
14.3.3
14.3.4
8069A–AVR–02/08
Push-pull
Pull-down
Pull-up
Bus-keeper
Figure 14-1. I/O configuration - Totem-pole
Figure 14-2. I/O configuration - Totem-pole with pull-down (on input)
Figure 14-3. I/O configuration - Totem-pole with pull-up (on input)
The bus-keeper’s weak output produces the same logical level as the last output level. It acts as
a pull-up if the last level was ‘1’, and pull-down if the last level was ‘0’.
OUTn
DIRn
OUTn
OUTn
DIRn
DIRn
INn
INn
INn
Pn
Pn
Pn
ATxmega A4
23
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