ATMEGA2561-16AI Atmel, ATMEGA2561-16AI Datasheet - Page 81
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
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2549M–AVR–09/10
Table 12-7
shown in
MISO signal, while MOSI is divided into SPI MSTR OUTPUT and SPI SLAVE INPUT.
PCINT0, Pin Change Interrupt source 0: The PB0 pin can serve as an external interrupt source.
Table 12-7.
Table 12-8.
DIEOE
DIEOE
Signal
DIEOV
Signal
DIEOV
PUOE
DDOE
DDOV
PUOE
DDOE
DDOV
Name
PUOV
PVOE
PVOV
Name
PUOV
PVOE
PVOV
AIO
AIO
DI
DI
Figure 12-5 on page
and
SPI SLAVE OUTPUT
OC0/OC1C ENABLE
PB7/OC0A/OC1C
SPI MSTR INPUT
Overriding Signals for Alternate Functions in PB7:PB4
Overriding Signals for Alternate Functions in PB3:PB0
PCINT3 • PCIE0
PCINT7 • PCIE0
PORTB3 • PUD
PCINT3 INPUT
PCINT7 INPUT
Table 12-8
SPE • MSTR
SPE • MSTR
SPE • MSTR
OC0/OC1C
PB3/MISO
0
1
–
0
0
0
0
1
–
relate the alternate functions of Port B to the overriding signals
76. SPI MSTR INPUT and SPI SLAVE OUTPUT constitute the
ATmega640/1280/1281/2560/2561
SPI MSTR OUTPUT
PCINT6 • PCIE0
SPI SLAVE INPUT
OC1B ENABLE
PCINT6 INPUT
PCINT2 • PCIE0
PORTB2 • PUD
PCINT2 INPUT
PB6/OC1B
SPE • MSTR
SPE • MSTR
SPE • MSTR
PB2/MOSI
OC1B
0
0
0
0
1
–
0
1
–
PCINT5 • PCIE0
OC1A ENABLE
PCINT5 INPUT
PCINT1 • PCIE0
PB5/OC1A
PORTB1 • PUD
PCINT1 INPUT
SCK OUTPUT
SPE • MSTR
SPE • MSTR
SPE • MSTR
SCK INPUT
OC1A
PB1/SCK
0
0
0
0
1
–
0
1
–
PCINT4 • PCIE0
OC2A ENABLE
PCINT4 INPUT
PCINT0 • PCIE0
PORTB0 • PUD
PCINT0 INPUT
SPE • MSTR
SPE • MSTR
PB4/OC2A
PB0/SS
OC2A
SPI SS
0
0
0
0
1
–
0
0
1
–
0
81
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