ATmega1281 Atmel Corporation, ATmega1281 Datasheet - Page 443
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
- Current page: 443 of 448
- Download datasheet (8Mb)
2549N–AVR–05/11
19 Output Compare Modulator (OCM1C0A) ........................................... 172
20 8-bit Timer/Counter2 with PWM and Asynchronous Operation ...... 174
21 SPI – Serial Peripheral Interface ......................................................... 195
22 USART ................................................................................................... 205
23 USART in SPI Mode ............................................................................. 232
19.1
19.2
20.1
20.2
20.3
20.4
20.5
20.6
20.7
20.8
20.9
20.10
21.1
21.2
22.1
22.2
22.3
22.4
22.5
22.6
22.7
22.8
22.9
22.10
23.1
23.2
23.3
23.4
23.5
23.6
Overview ........................................................................................................172
Description .....................................................................................................172
Overview ........................................................................................................174
Timer/Counter Clock Sources .......................................................................175
Counter Unit ..................................................................................................175
Modes of Operation .......................................................................................176
Output Compare Unit .....................................................................................180
Compare Match Output Unit ..........................................................................182
Timer/Counter Timing Diagrams ...................................................................183
Asynchronous Operation of Timer/Counter2 .................................................184
Timer/Counter Prescaler ...............................................................................186
Register Description ......................................................................................187
SS Pin Functionality ......................................................................................200
Register Description ......................................................................................202
Features ........................................................................................................205
Clock Generation ...........................................................................................206
Frame Formats ..............................................................................................209
USART Initialization .......................................................................................210
Data Transmission – The USART Transmitter ..............................................212
Data Reception – The USART Receiver .......................................................214
Asynchronous Data Reception ......................................................................218
Multi-processor Communication Mode ..........................................................221
Register Description ......................................................................................222
Examples of Baud Rate Setting .....................................................................227
Overview ........................................................................................................232
USART MSPIM vs. SPI .................................................................................232
SPI Data Modes and Timing ..........................................................................233
Frame Formats ..............................................................................................234
Data Transfer .................................................................................................236
USART MSPIM Register Description ............................................................237
ATmega640/1280/1281/2560/2561
iv
Related parts for ATmega1281
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
U6046BREAR WINDOW HEATING TIMER / LONG-TERM TIMER
Manufacturer:
ATMEL Corporation
Datasheet: