ATmega1281 Atmel Corporation, ATmega1281 Datasheet - Page 98
ATmega1281
Manufacturer Part Number
ATmega1281
Description
Manufacturer
Atmel Corporation
Specifications of ATmega1281
Flash (kbytes)
128 Kbytes
Pin Count
64
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
54
Ext Interrupts
17
Usb Speed
No
Usb Interface
No
Spi
3
Twi (i2c)
1
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
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
2
Pwm Channels
8
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATmega1281-8MC
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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13.3.11
2549N–AVR–05/11
Alternate Functions of Port L
Table 13-32. Overriding Signals for Alternate Functions in PK3:PK0
The Port L alternate pin configuration is as follows:
Table 13-33. Port L Pins Alternate Functions
• OC5C – Port L, Bit 5
OC5C, Output Compare Match C output: The PL5 pin can serve as an external output for the
Timer/Counter5 Output Compare C. The pin has to be configured as an output (DDL5 set) to
serve this function. The OC5C pin is also the output pin for the PWM mode timer function.
• OC5B – Port L, Bit 4
OC5B, Output Compare Match B output: The PL4 pin can serve as an external output for the
Timer/Counter 5 Output Compare B. The pin has to be configured as an output (DDL4 set) to
serve this function. The OC5B pin is also the output pin for the PWM mode timer function.
• OC5A – Port L, Bit 3
OC5A, Output Compare Match A output: The PL3 pin can serve as an external output for the
Timer/Counter 5 Output Compare A. The pin has to be configured as an output (DDL3 set) to
serve this function. The OC5A pin is also the output pin for the PWM mode timer function.
Signal Name
Port Pin
DIEOE
DIEOV
DDOE
PUOE
PUOV
DDOV
PVOE
PVOV
PTOE
AIO
PL7
PL6
PL5
PL4
PL3
PL2
PL1
PL0
DI
PCINT19 • PCIE2
PCINT19 INPUT
ADC11 INPUT
PK3/ADC11/
PCINT19
0
0
0
0
0
0
–
1
OC5C (Output Compare and PWM Output C for Timer/Counter5)
OC5B (Output Compare and PWM Output B for Timer/Counter5)
OC5A (Output Compare and PWM Output A for Timer/Counter5)
ATmega640/1280/1281/2560/2561
ICP5 (Timer/Counter5 Input Capture Trigger)
ICP4 (Timer/Counter4 Input Capture Trigger)
PCINT18 • PCIE2
PCINT18 INPUT
ADC10INPUT
PK2/ADC10/
T5 (Timer/Counter5 Clock Input)
PCINT18
0
0
0
0
0
0
–
1
Alternate Function
–
–
PCINT17 • PCIE2
PCINT17 INPUT
ADC9 INPUT
PK1/ADC9/
PCINT17
0
0
0
0
0
0
–
1
PCINT16 • PCIE2
PCINT16 INPUT
ADC8 INPUT
PK0/ADC8/
PCINT16
0
0
0
0
0
0
–
1
98
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