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ATMEGA1281 Dataheets PDF



Part Number ATMEGA1281
Manufacturers ATMEL Corporation
Logo ATMEL Corporation
Description 8-BIT Microcontroller
Datasheet ATMEGA1281 DatasheetATMEGA1281 Datasheet (PDF)

Atmel ATmega640/V-1280/V-1281/V-2560/V-2561/V 8-bit Atmel Microcontroller with 16/32/64KB In-System Programmable Flash Features • High Performance, Low Power Atmel® AVR® 8-Bit Microcontroller • Advanced RISC Architecture – 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 • High Endurance Non-volatile Memory Segments – 64K/128K/256KBytes of In-System S.

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Atmel ATmega640/V-1280/V-1281/V-2560/V-2561/V 8-bit Atmel Microcontroller with 16/32/64KB In-System Programmable Flash Features • High Performance, Low Power Atmel® AVR® 8-Bit Microcontroller • Advanced RISC Architecture – 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 • High Endurance Non-volatile Memory Segments – 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 • In-System Programming by On-chip Boot Program • True Read-While-Write Operation – Programming Lock for Software Security • • Endurance: Up to 64Kbytes Optional External Memory Space Atmel® QTouch® library support – Capacitive touch buttons, sliders and wheels – QTouch and QMatrix acquisition – Up to 64 sense channels • JTAG (IEEE® std. 1149.1 compliant) Interface – 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 • Peripheral Features – 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 (ATmega1281/2561, ATmega640/1280/2560) – 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 • Special Microcontroller Features – 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, and Extended Standby • I/O and Packages – 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 • Temperature Range: – -40C to 85C Industrial • Ultra-Low Power Consumption – Active Mode: 1MHz, 1.8V: 500µA – Power-down Mode: 0.1µA at 1.8V • Speed Grade: – ATmega640V/ATmega1280V/ATmega1281V: • 0 - 4MHz @ 1.8V - 5.5V, 0 - 8MHz @ 2.7V - 5.5V – ATmega2560V/ATmega2561V: • 0 - 2MHz @ 1.8V - 5.5V, 0 - 8MHz @ 2.7V - 5.5V – ATmega640/ATmega1280/ATmega1281: • 0 - 8MHz @ 2.7V - 5.5V, 0 - 16MHz @ 4.5V - 5.5V – ATmega2560/ATmega2561: • 0 - 16MHz @ 4.5V - 5.5V DATASHEET 2549Q–AVR–02/2014 1. Pin Configurations Figure 1-1. TQFP-pinout ATmega640/1280/2560 AVCC GND AREF PF0 (ADC0) PF1 (ADC1) PF2 (ADC2) PF3 (ADC3) PF4 (ADC4/TCK) PF5 (ADC5/TMS) PF6 (ADC6/TDO) PF7 (ADC7/TDI) PK0 (ADC8/PCINT16) PK1 (ADC9/PCINT17) PK2 (ADC10/PCINT18) PK3 (ADC11/PCINT19) PK4 (ADC12/PCINT20) PK5 (ADC13/PCINT21) PK6 (ADC14/PCINT22) PK7 (ADC15/PCINT23) GND VCC PJ7 PA0 (AD0) PA1 (AD1) PA2 (AD2) 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 (OC0B) PG5 1 (RXD0/PCINT8) PE0 2 (TXD0) PE1 3 (XCK0/AIN0) PE2 4 (OC3A/AIN1) PE3 5 (OC3B/INT4) PE4 6 (OC3C/INT5) PE5 7 (T3/INT6) PE6 8 (CLKO/ICP3/INT7) PE7 9 VCC 10 GND 11 (RXD2) PH0 12 (TXD2) PH1 13 (XCK2) PH2 14 (OC4A) PH3 15 (OC4B) PH4 16 (OC4C) PH5 17 (OC2B) PH6 18 (SS/PCINT0) PB0 19 (SCK/PCINT1) PB1 20 (MOSI/PCINT2) PB2 21 (MISO/PCINT3) PB3 22 (OC2A/PCINT4) PB4 23 (OC1A/PCINT5) PB5 24 (OC1B/PCINT6) PB6 25 INDEX CORNER 75 PA3 (AD3) 74 PA4 (AD4) 73 PA5 (AD5) 72 PA6 (AD6) 71 PA7 (AD7) 70 PG2 (ALE) 69 PJ6 (PCINT15) 68 PJ5 (PCINT14) 67 PJ4 (PCINT13) 66 PJ3 (PCINT12) 65 PJ2 (XCK3/PCINT11) 64 PJ1 (TXD3/PCINT10) 63 PJ0 (RXD3/PCINT9) 62 GND 61 VCC 60 PC7 (A15) 59 PC6 (A14) 58 PC5 (A13) 57 PC4 (A12) 56 PC3 (A11) 55 PC2 (A10) 54 PC1 (A9) 53 PC0 (A8) 52 PG1 (RD) 51 PG0 (WR) 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 (OC0A/OC1C/PCINT7) PB7 (T4) PH7 (TOSC2) PG3 (TOSC1) PG4 RESET VCC GND XTAL2 XTAL1 (ICP4) PL0 (ICP5) PL1 (T5) PL2 (OC5A) PL3 (OC5B) PL4 (OC5C) PL5 PL6 PL7 (SCL/INT0) PD0 (SDA/INT1) PD1 (RXD1/INT2) PD2 (TXD1/INT3) PD3 (ICP1) PD4 (XCK1) PD5 (T1) PD6 (T0) PD7 ATmega640/V-1280/V-1281/V-2560/V-2561/V [DATASHEET] 2549Q–AVR–02/2014 2 Figure 1-2. CBGA-pinout ATmega640/1280/2560 Top view 1 2 3 4 5 6 7 8 9 10 A B C D E F G H J K Bottom view 10 9 8 7 6 5 4 3 2 1 A B C D E F G H J K Table 1-1. CBGA-pinout ATmega640/1280/2560 12345678 A GND AREF PF0 PF2 PF5 PK0 PK3 PK6 B AVCC PG5 PF1 PF3 PF6 PK1 PK4 PK7 C PE2 PE0 PE1 PF4 PF7 PK2 PK5 PJ7 D PE3 PE4 PE5 PE6 PH2 PA4 PA5 PA6 E PE7 PH0 PH1 PH3 PH5 PJ6 PJ5 PJ4 F VCC P.


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