ATMEGA2561-16AI Atmel, ATMEGA2561-16AI Datasheet - Page 5
![IC AVR MCU 256K 16MHZ 64TQFP](/photos/12/13/121332/313-64-tqfp_sml.jpg)
ATMEGA2561-16AI
Manufacturer Part Number
ATMEGA2561-16AI
Description
IC AVR MCU 256K 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA2561-16AI
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
54
Program Memory Size
256KB (128K x 16)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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2. Overview
2.1
Figure 2-1.
2549M–AVR–09/10
PG5..0
PC7..0
P A7..0
RESET
XTAL1
XTAL2
Block Diagram
VCC
GND
Block Diagram
NOTE:
Shaded parts only available
in the 100-pin version.
Complete functionality for
the ADC, T/C4, and T/C5 only
available in the 100-pin version.
POR / BOD &
Supervision
Generation
PORT A (8)
PORT G (6)
PORT C (8)
Watchdog
Watchdog
Oscillator
Oscillator
Circuits /
Power
RESET
Timer
Clock
The ATmega640/1280/1281/2560/2561 is a low-power CMOS 8-bit microcontroller based on the
AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the
ATmega640/1280/1281/2560/2561 achieves throughputs approaching 1 MIPS per MHz allowing
the system designer to optimize power consumption versus processing speed.
PORT F (8)
PORT D (8)
PF7..0
EEPROM
XRAM
PD7..0
JTAG
TWI
FLASH
SPI
PORT K (8)
PORT B (8)
ATmega640/1280/1281/2560/2561
PK7..0
PB7..0
Bandgap reference
Converter
Internal
A/D
CPU
8 bit T/C 0
SRAM
PORT J (8)
PORT H (8)
PH7..0
P J7..0
Comparator
Analog
16 bit T/C 1
16 bit T/C 3
16 bit T/C 5
16 bit T/C 4
8 bit T/C 2
PORT E (8)
PE7..0
PORT L (8)
PL7..0
USART 0
USART 1
USART 3
USART 2
5
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