ATXMEGA64A3-MU Atmel, ATXMEGA64A3-MU Datasheet - Page 28

• Manufacturer Part Number: ATXMEGA64A3-MU
• Description: 8-bit Microcontrollers - MCU 8/16 bit 1.6V-3.6V 64KB + 4KB
• Manufacturer: Atmel

Specifications of ATXMEGA64A3-MU

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: AVR
• Data Bus Width: 8 bit/16 bit
• Maximum Clock Frequency: 32 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 4 KB
• On-chip Adc: Yes
• Package / Case: QFN EP
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 8
• Data Rom Size: 2 KB
• Interface Type: I2C, SPI, USART
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 50
• Number Of Timers: 7
• Processor Series: ATXMega
• Program Memory Type: Flash
• Factory Pack Quantity: 260
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 1.6 V

15.3.1
15.3.2
15.3.3
15.3.4
8068T–AVR–12/10
Push-pull
Pull-down
Pull-up
Bus-keeper
Figure 15-1. I/O configuration - Totem-pole
Figure 15-2. I/O configuration - Totem-pole with pull-down (on input)
Figure 15-3. 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
XMEGA A3
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