ATXMEGA16D4-AU Atmel, ATXMEGA16D4-AU Datasheet - Page 27

• Manufacturer Part Number: ATXMEGA16D4-AU
• Description: MCU AVR 16KB FLASH 44TQFP
• Manufacturer: Atmel
• Series: AVR® XMEGAr

Specifications of ATXMEGA16D4-AU

• Core Processor: AVR
• Core Size: 8/16-Bit
• Speed: 32MHz
• Connectivity: I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.6 V ~ 3.6 V
• Data Converters: A/D 12x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: ATXMEGA16x
• Core: AVR8
• Data Bus Width: 8 bit
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

14.3.1
14.3.2
14.3.3
14.3.4
8135J–AVR–12/10
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
XMEGA D4
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