ATMEGA645-16AUR Atmel, ATMEGA645-16AUR Datasheet - Page 150

• Manufacturer Part Number: ATMEGA645-16AUR
• Description: MCU AVR 64KB FLASH 16MHZ 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA645-16AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2570M–AVR–04/11
When the SPI is enabled, the data direction of the MOSI, MISO, SCK, and SS pins is overridden
according to
Functions” on page
Table 18-1.
Note:
MOSI
MISO
SCK
Pin
SS
1. See
direction of the user defined SPI pins.
Table
Direction, Master SPI
User Defined
Input
User Defined
User Defined
SPI Pin Overrides
“Alternate Functions of Port B” on page 68
18-1. For more details on automatic port overrides, refer to
66.
(1)
ATmega325/3250/645/6450
Direction, Slave SPI
Input
User Defined
Input
Input
for a detailed description of how to define the
“Alternate Port
150