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ATMEGA640 Datasheet, PDF (1/407 Pages) ATMEL Corporation – 8- BIT Microcontroller with 256K Bytes In-System Programmable Flash | |||
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Features
⢠High Performance, Low Power AVR® 8-Bit Microcontroller
⢠Advanced RISC Architecture
â 135 Powerful Instructions â Most Single Clock Cycle Execution
â 32 x 8 General Purpose Working Registers
â Fully Static Operation
â Up to 16 MIPS Throughput at 16 MHz
â On-Chip 2-cycle Multiplier
⢠Non-volatile Program and Data Memories
â 64K/128K/256K Bytes of In-System Self-Programmable Flash
Endurance: 10,000 Write/Erase Cycles
â Optional Boot Code Section with Independent Lock Bits
In-System Programming by On-chip Boot Program
True Read-While-Write Operation
â 4K Bytes EEPROM
Endurance: 100,000 Write/Erase Cycles
â 8K Bytes Internal SRAM
â Up to 64K Bytes Optional External Memory Space
â Programming Lock for Software Security
⢠JTAG (IEEE std. 1149.1 compliant) Interface
â Boundary-scan Capabilities According to the JTAG Standard
â Extensive On-chip Debug Support
â Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface
⢠Peripheral Features
â Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
â Four 16-bit Timer/Counter with Separate Prescaler, Compare- and Capture Mode
â Real Time Counter with Separate Oscillator
â Four 8-bit PWM Channels
â Six/Twelve PWM Channels with Programmable Resolution from 2 to 16 Bits
(ATmega1281/2561, ATmega640/1280/2560)
â Output Compare Modulator
â 8/16-channel, 10-bit ADC
â Two/Four Programmable Serial USART (ATmega1281/2561,ATmega640/1280/2560)
â Master/Slave SPI Serial Interface
â Byte Oriented 2-wire Serial Interface
â Programmable Watchdog Timer with Separate On-chip Oscillator
â On-chip Analog Comparator
â Interrupt and Wake-up on Pin Change
⢠Special Microcontroller Features
â Power-on Reset and Programmable Brown-out Detection
â Internal Calibrated Oscillator
â External and Internal Interrupt Sources
â Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby,
and Extended Standby
⢠I/O and Packages
â 51/86 Programmable I/O Lines (ATmega1281/2561, ATmega640/1280/2560)
â 64-lead (ATmega1281/2561)
â 100-lead (ATmega640/1280/2560)
â 100-lead TQFP (64-lead TQFP Option)
⢠Temperature Range:
â -40°C to 85°C Industrial
⢠Speed Grade:
â ATmega1281/2561V/ATmega640/1280/2560V:
0 - 4 MHz @ 1.8 - 5.5V, 0 - 8 MHz @ 2.7 - 5.5V
â ATmega640/1280/1281/2560/2561:
0 - 8 MHz @ 2.7 - 5.5V, 0 - 16 MHz @ 4.5 - 5.5V
8-bit
Microcontroller
with 256K Bytes
In-System
Programmable
Flash
ATmega1281/25
61/V
ATmega640/128
0/2560/V
Advance
Information
2549AâAVRâ03/05
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