ATmega1281 Atmel Corporation, ATmega1281 Datasheet - Page 285
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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2549N–AVR–05/11
Figure 26-9. ADC Power Connections, ATmega1281/2561.
Figure 26-10. ADC Power Connections, ATmega640/1280/2560
Ground Plane
ATmega640/1280/1281/2560/2561
Ground Plane
100nF
100nF
100nF
(ADC15/PCINT23) PK7
(ADC14/PCINT22) PK6
(ADC13/PCINT21) PK5
(ADC12/PCINT20) PK4
(ADC11/PCINT19) PK3
(ADC10/PCINT18) PK2
(ADC9/PCINT17) PK1
(ADC8/PCINT16) PK0
(ADC7) PF7
(ADC6) PF6
(ADC5) PF5
(ADC4) PF4
(ADC3) PF3
(ADC2) PF2
(ADC1) PF1
(ADC0) PF0
(ADC6/TDO) PF6
(ADC5/TMS) PF5
(ADC4/TCK) PF4
(ADC7/TDI) PF7
(ADC3) PF3
(ADC2) PF2
(ADC1) PF1
(ADC0) PF0
AVCC
AREF
GND
GND
VCC
PA0
AREF
AVCC
VCC
GND
GND
PJ7
51
52
53
54
55
56
57
58
59
60
61
61
62
62
63
63
64
64
100
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
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