ATmega1280 Atmel Corporation, ATmega1280 Datasheet

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ATmega1280

Manufacturer Part Number
ATmega1280
Description
Manufacturer
Atmel Corporation
Datasheets

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

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATmega1280-16AU
Manufacturer:
ATMEL
Quantity:
3 000
Part Number:
ATmega1280-16AU
Manufacturer:
ATMEL
Quantity:
2 990
Features
High Performance, Low Power Atmel
Advanced RISC Architecture
High Endurance Non-volatile Memory Segments
Atmel
JTAG (IEEE std. 1149.1 compliant) Interface
Peripheral Features
Special Microcontroller Features
I/O and Packages
Temperature Range:
Ultra-Low Power Consumption
Speed Grade:
– 135 Powerful Instructions – Most Single Clock Cycle Execution
– 32 × 8 General Purpose Working Registers
– Fully Static Operation
– Up to 16 MIPS Throughput at 16MHz
– On-Chip 2-cycle Multiplier
– 64K/128K/256KBytes of In-System Self-Programmable Flash
– 4Kbytes EEPROM
– 8Kbytes Internal SRAM
– Write/Erase Cycles:10,000 Flash/100,000 EEPROM
– Data retention: 20 years at 85°C/ 100 years at 25°C
– Optional Boot Code Section with Independent Lock Bits
– Programming Lock for Software Security
– Capacitive touch buttons, sliders and wheels
– QTouch and QMatrix® acquisition
– Up to 64 sense channels
– Boundary-scan Capabilities According to the JTAG Standard
– Extensive On-chip Debug Support
– Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface
– Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
– Four 16-bit Timer/Counter with Separate Prescaler, Compare- and Capture Mode
– Real Time Counter with Separate Oscillator
– Four 8-bit PWM Channels
– Six/Twelve PWM Channels with Programmable Resolution from 2 to 16 Bits
– Output Compare Modulator
– 8/16-channel, 10-bit ADC (ATmega1281/2561, ATmega640/1280/2560)
– Two/Four Programmable Serial USART (ATmega1281/2561, ATmega640/1280/2560)
– Master/Slave SPI Serial Interface
– Byte Oriented 2-wire Serial Interface
– Programmable Watchdog Timer with Separate On-chip Oscillator
– On-chip Analog Comparator
– Interrupt and Wake-up on Pin Change
– Power-on Reset and Programmable Brown-out Detection
– Internal Calibrated Oscillator
– External and Internal Interrupt Sources
– Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby,
– 54/86 Programmable I/O Lines (ATmega1281/2561, ATmega640/1280/2560)
– 64-pad QFN/MLF, 64-lead TQFP (ATmega1281/2561)
– 100-lead TQFP, 100-ball CBGA (ATmega640/1280/2560)
– RoHS/Fully Green
– -40°C to 85°C Industrial
– Active Mode: 1MHz, 1.8V: 500µA
– Power-down Mode: 0.1µA at 1.8V
– ATmega640V/ATmega1280V/ATmega1281V:
– ATmega2560V/ATmega2561V:
– ATmega640/ATmega1280/ATmega1281:
– ATmega2560/ATmega2561:
(ATmega1281/2561, ATmega640/1280/2560)
and Extended Standby
®
• In-System Programming by On-chip Boot Program
• True Read-While-Write Operation
• Endurance: Up to 64Kbytes Optional External Memory Space
QTouch
• 0 - 4MHz @ 1.8V - 5.5V, 0 - 8MHz @ 2.7V - 5.5V
• 0 - 2MHz @ 1.8V - 5.5V, 0 - 8MHz @ 2.7V - 5.5V
• 0 - 8MHz @ 2.7V - 5.5V, 0 - 16MHz @ 4.5V - 5.5V
• 0 - 16MHz @ 4.5V - 5.5V
®
library support
®
AVR
®
8-Bit Microcontroller
8-bit Atmel
Microcontroller
with
64K/128K/256K
Bytes In-System
Programmable
Flash
ATmega640/V
ATmega1280/V
ATmega1281/V
ATmega2560/V
ATmega2561/V
Preliminary
Summary
2549NS–AVR–05/11

Related parts for ATmega1280

ATmega1280 Summary of contents

Page 1

... Industrial • Ultra-Low Power Consumption – Active Mode: 1MHz, 1.8V: 500µA – Power-down Mode: 0.1µA at 1.8V • Speed Grade: – ATmega640V/ATmega1280V/ATmega1281V: • 4MHz @ 1.8V - 5.5V 8MHz @ 2.7V - 5.5V – ATmega2560V/ATmega2561V: • 2MHz @ 1.8V - 5.5V 8MHz @ 2.7V - 5.5V – ATmega640/ATmega1280/ATmega1281: • 8MHz @ 2.7V - 5.5V 16MHz @ 4.5V - 5.5V – ATmega2560/ATmega2561: • 16MHz @ 4.5V - 5.5V ® ...

Page 2

Pin Configurations Figure 1-1. TQFP-pinout ATmega640/1280/2560 100 (OC0B) PG5 1 (RXD0/PCINT8) PE0 2 (TXD0) PE1 ...

Page 3

Figure 1-2. CBGA-pinout ATmega640/1280/2560 Top view Table 1- Note: 2549NS–AVR–05/11 ATmega640/1280/1281/2560/2561 ...

Page 4

Figure 1-3. Pinout ATmega1281/2561 1 (OC0B) PG5 2 (RXD0/PCINT8/PDI) PE0 3 (TXD0/PDO) PE1 4 (XCK0/AIN0) PE2 5 (OC3A/AIN1) PE3 6 (OC3B/INT4) PE4 7 (OC3C/INT5) PE5 8 (T3/INT6) PE6 9 (ICP3/CLKO/INT7) PE7 10 (SS/PCINT0) PB0 11 (SCK/ PCINT1) PB1 12 (MOSI/ ...

Page 5

Overview The ATmega640/1280/1281/2560/2561 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega640/1280/1281/2560/2561 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to ...

Page 6

The Atmel ters. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while ...

Page 7

... Comparison Between ATmega1281/2561 and ATmega640/1280/2560 Each device in the ATmega640/1280/1281/2560/2561 family differs only in memory size and number of pins. Table 2-1. Configuration Summary Device Flash EEPROM ATmega640 64KB ATmega1280 128KB ATmega1281 128KB ATmega2560 256KB ATmega2561 256KB 2.3 Pin Descriptions 2.3.1 VCC Digital supply voltage. 2.3.2 GND Ground. ...

Page 8

The Port C pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port C also serves the functions of special features of the ATmega640/1280/1281/2560/2561 as listed on 2.3.6 Port D ...

Page 9

The Port H pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port H also serves the functions of various special features of the ATmega640/1280/2560 as listed on 2.3.11 Port ...

Page 10

AVCC AVCC is the supply voltage pin for Port F and the A/D Converter. It should be externally con- nected to V through a low-pass filter. 2.3.18 AREF This is the analog reference pin for the A/D Converter. 2549NS–AVR–05/11 ...

Page 11

Resources A comprehensive set of development tools and application notes, and datasheets are available for download on http://www.atmel.com/avr. 4. About Code Examples This documentation contains simple code examples that briefly show how to use various parts of the device. ...

Page 12

Register Summary Address Name Bit 7 (0x1FF) Reserved - ... Reserved - (0x13F) Reserved (0x13E) Reserved (0x13D) Reserved (0x13C) Reserved (0x13B) Reserved (0x13A) Reserved (0x139) Reserved (0x138) Reserved (0x137) Reserved (0x136) UDR3 (0x135) UBRR3H - (0x134) UBRR3L (0x133) Reserved ...

Page 13

Address Name Bit 7 (0x100) PINH PINH7 (0xFF) Reserved - (0xFE) Reserved - (0xFD) Reserved - (0xFC) Reserved - (0xFB) Reserved - (0xFA) Reserved - (0xF9) Reserved - (0xF8) Reserved - (0xF7) Reserved - (0xF6) Reserved - (0xF5) Reserved - ...

Page 14

Address Name Bit 7 (0xBE) Reserved - (0xBD) TWAMR TWAM6 (0xBC) TWCR TWINT (0xBB) TWDR (0xBA) TWAR TWA6 (0xB9) TWSR TWS7 (0xB8) TWBR (0xB7) Reserved - (0xB6) ASSR - (0xB5) Reserved - (0xB4) OCR2B (0xB3) OCR2A (0xB2) TCNT2 (0xB1) TCCR2B ...

Page 15

Address Name Bit 7 (0x7C) ADMUX REFS1 (0x7B) ADCSRB - (0x7A) ADCSRA ADEN (0x79) ADCH (0x78) ADCL (0x77) Reserved - (0x76) Reserved - (0x75) XMCRB XMBK (0x74) XMCRA SRE (0x73) TIMSK5 - (0x72) TIMSK4 - (0x71) TIMSK3 - (0x70) TIMSK2 ...

Page 16

Address Name Bit 7 0x1A (0x3A) TIFR5 - 0x19 (0x39) TIFR4 - 0x18 (0x38) TIFR3 - 0x17 (0x37) TIFR2 - 0x16 (0x36) TIFR1 - 0x15 (0x35) TIFR0 - 0x14 (0x34) PORTG - 0x13 (0x33) DDRG - 0x12 (0x32) PING - ...

Page 17

Instruction Set Summary Mnemonics Operands ARITHMETIC AND LOGIC INSTRUCTIONS ADD Rd, Rr Add two Registers ADC Rd, Rr Add with Carry two Registers ADIW Rdl,K Add Immediate to Word SUB Rd, Rr Subtract two Registers SUBI Rd, K Subtract ...

Page 18

Mnemonics Operands BRVS k Branch if Overflow Flag is Set BRVC k Branch if Overflow Flag is Cleared BRIE k Branch if Interrupt Enabled BRID k Branch if Interrupt Disabled BIT AND BIT-TEST INSTRUCTIONS SBI P,b Set Bit in I/O ...

Page 19

Mnemonics Operands ELPM Rd, Z+ Extended Load Program Memory SPM Store Program Memory IN Rd Port OUT P, Rr Out Port PUSH Rr Push Register on Stack POP Rd Pop Register from Stack MCU CONTROL INSTRUCTIONS NOP No ...

Page 20

Ordering Information 9.1 ATmega640 (2) Speed (MHz) Power Supply 8 1.8 - 5.5V 16 2.7 - 5.5V Notes: 1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information ...

Page 21

... Thin (1.0mm) Plastic Gull Wing Quad Flat Package (TQFP) 100C1 100-ball, Chip Ball Grid Array (CBGA) 2549NS–AVR–05/11 ATmega640/1280/1281/2560/2561 Ordering Code ATmega1280V-8AU (4) ATmega1280V-8AUR ATmega1280V-8CU (4) ATmega1280V-8CUR ATmega1280-16AU (4) ATmega1280-16AUR ATmega1280-16CU (4) ATmega1280-16CUR 369. Package Type (1)(3) Package Operation Range 100A 100A 100C1 100C1 Industrial (-40°C to 85°C) ...

Page 22

ATmega1281 (2) Speed (MHz) Power Supply 8 1.8 - 5.5V 16 2.7 - 5.5V Notes: 1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. ...

Page 23

ATmega2560 (2) Speed (MHz) Power Supply 8 1.8V - 5.5V 16 4.5V - 5.5V Notes: 1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. ...

Page 24

ATmega2561 (2) Speed (MHz) Power Supply 8 1.8V - 5.5V 16 4.5V - 5.5V Notes: 1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. ...

Page 25

Packaging Information 10.1 100A PIN 0°~7° L Notes: 1. This package conforms to JEDEC reference MS-026, Variation AED. 2. Dimensions D1 and E1 do not include mold protrusion. Allowable protrusion is 0.25 mm per side. Dimensions ...

Page 26

D e 0.90 TYP 0.90 TYP 2325 Orchard Parkway San Jose, CA 95131 R 2549NS–AVR–05/11 ATmega640/1280/1281/2560/2561 E Marked A1 Identifier TOP VIEW Øb A1 Corner ...

Page 27

PIN 0°~7° Notes: 1.This package conforms to JEDEC reference MS-026, Variation AEB. 2. Dimensions D1 and E1 do not include mold protrusion. Allowable protrusion is 0.25 mm per side. Dimensions D1 and E1 are maximum ...

Page 28

Marked Pin TOP VIEW BOTTOM VIEW Notes: 1. JEDEC Standard MO-220, (SAW Singulation) Fig. 1, VMMD. 2. Dimension and tolerance conform to ASMEY14.5M-1994. 2325 Orchard Parkway San Jose, CA 95131 ...

Page 29

... SLEEP instruction directly after a SEI instruction. Problem Fix/Workaround Before entering sleep, interrupts not used to wake the part from the sleep mode should be disabled. 11.3 ATmega1280 rev. B • Inaccurate ADC conversion in differential mode with 200× gain • High current consumption in sleep mode 1. ...

Page 30

... SLEEP instruction directly after a SEI instruction. Problem Fix/Workaround Before entering sleep, interrupts not used to wake the part from the sleep mode should be disabled. 11.4 ATmega1280 rev. A • Inaccurate ADC conversion in differential mode with 200× gain • High current consumption in sleep mode 1. ...

Page 31

ATmega1281 rev. A • Inaccurate ADC conversion in differential mode with 200× gain • High current consumption in sleep mode 1. Inaccurate ADC conversion in differential mode with 200× gain With AVCC <3.6V, random conversions will be inaccurate. Typical ...

Page 32

ATmega2560 rev. A • Non-Read-While-Write area of flash not functional • Part does not work under 2.4 volts • Incorrect ADC reading in differential mode • Internal ADC reference has too low value • IN/OUT instructions may be executed ...

Page 33

Problem Fix/Workaround There are two application work-arounds, where selecting one of them, will be omitting the issue: - Replace IN and OUT with LD/LDS/LDD and ST/STS/STD instructions. - Use internal RAM for stack pointer. 6. EEPROM read from application code ...

Page 34

Non-Read-While-Write area of flash not functional The Non-Read-While-Write area of the flash is not working as expected. The problem is related to the speed of the part when reading the flash of this area. Problem Fix/Workaround - Only use ...

Page 35

Problem Fix/Workaround Do not set Lock Bit Protection Mode 3 when the application code needs to read from EEPROM. 2549NS–AVR–05/11 ATmega640/1280/1281/2560/2561 35 ...

Page 36

Datasheet Revision History Please note that the referring page numbers in this section are referring to this document.The referring revision in this section are referring to the document revision. 12.1 Rev. 2549N-05/ ...

Page 37

Rev. 2549K-01/ 10. 12.5 Rev. 2549J-09/ 12.6 Rev. 2549I-07/ 12.7 Rev. 2549H-06/ 2549NS–AVR–05/11 ATmega640/1280/1281/2560/2561 Updated ...

Page 38

Rev. 2549G-06/ 10. 12.9 Rev. 2549F-04/ 12.10 Rev. 2549E-04/ 12.11 Rev. 2549D-12/ ...

Page 39

Rev. 2549C-09/ 12.13 Rev. 2549B-05/ 12.14 Rev. 2549A-03/05 1. 2549NS–AVR–05/11 ATmega640/1280/1281/2560/2561 Updated Speed Grade in section “Features” on page Added “Resources” on page 11. Updated “SPI – ...

Page 40

... Atmel , Atmel logo and combinations thereof, AVR marks of Atmel Corporation or its subsidiaries. Windows other countries. Other terms and product names may be trademarks of others. Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN THE ATMEL ...

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