ATMEGA1281-16AUR Atmel, ATMEGA1281-16AUR Datasheet - Page 369

• Manufacturer Part Number: ATMEGA1281-16AUR
• Description: MCU AVR 128K FLASH 16MHZ 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA1281-16AUR

• 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: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 8K 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: 64-TQFP, 64-VQFP
• For Use With: ATAVRDB101 - MODULE DISPLAY LCD/RGB BACKLIGHTATSTK600 - DEV KIT FOR AVR/AVR32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

30.2
30.2.1
2549M–AVR–09/10
5. Values with “PRR1 – Power Reduction Register 1” enabled (0xFF).
Speed Grades
8 MHz
3)The sum of all IOH, for ports G3-G4, B0-B7, H0-H7 should not exceed 200 mA.
4)The sum of all IOH, for ports E0-E7, G5 should not exceed 100 mA.
5)The sum of all IOH, for ports F0-F7, K0-K7 should not exceed 100 mA.
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.
Maximum frequency is depending on V
370, the Maximum Frequency vs. V
2.7V < V
Figure 30-1. Maximum Frequency vs. V
Figure 30-2. 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
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 30-1
trough
CC
5.5V
5.5V
Figure 30-4 on page
< 2.7V and between
(1)
,
369