ATmega1280 Atmel Corporation, ATmega1280 Datasheet - Page 369

• Manufacturer Part Number: ATmega1280
• Manufacturer: Atmel Corporation

Specifications of ATmega1280

• Flash (kbytes): 128 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 86
• Ext Interrupts: 32
• Usb Speed: No
• Usb Interface: No
• Spi: 5
• Twi (i2c): 1
• Uart: 4
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 16
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 8
• Eeprom (bytes): 4096
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 6
• Output Compare Channels: 16
• Input Capture Channels: 4
• Pwm Channels: 15
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

31.2
31.2.1
2549N–AVR–05/11
5. Values with
Speed Grades
8MHz
5)The sum of all IOH, for ports F0-F7, K0-K7 should not exceed 100mA.
If IOH exceeds the test condition, VOH may exceed the related specification. Pins are not guaranteed to source current
greater than the listed test condition.
“PRR1 – Power Reduction Register 1”
Maximum frequency is depending on V
370, the Maximum Frequency vs. V
2.7V < V
Figure 31-1. Maximum Frequency vs. V
Figure 31-2. Maximum Frequency vs. V
Note:
1. When only using the Read-While-Write Section of the program memory, a higher speed can
CC
be achieved at low voltage, see
on page 317
< 4.5V.
8 MHz
4 MHz
8 MHz
2 MHz
ATmega2560V/ATmega2561V, is used
for addresses.
1.8V
1.8V
enabled (0xFF).
ATmega640/1280/1281/2560/2561
CC
curve is linear between 1.8V < V
CC.
“Read-While-Write and No Read-While-Write Flash Sections”
CC
CC
Safe Operating Area
Safe Operating Area
As shown in
, ATmega640V/1280V/1281V/2560V/2561V
when also No-Read-While-Write Section
2.7V
2.7V
Figure 31-1
trough
CC
5.5V
5.5V
Figure 31-4 on page
< 2.7V and between
(1)
,
369