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Features

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High-performance, Low-power AVR
® 8-bit Microcontroller

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Advanced RISC Architecture–131 Powerful Instructions – Most Single-clock Cycle Execution–32 x 8 General Purpose Working Registers –Fully Static Operation–Up to 20 MIPS Throughput at 20 MHz–On-chip 2-cycle Multiplier

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Nonvolatile Program and Data Memories–128K Bytes of In-System Self-Programmable Flash Endurance: 10,000 Write/Erase Cycles–Optional Boot Code Section with Independent Lock BitsIn-System Programming by On-chip Boot Program True Read-While-Write Operation–4K Bytes EEPROMEndurance: 100,000 Write/Erase Cycles–16K Bytes Internal SRAM–Programming Lock for Software Security

ATmega1284P Preliminary - 13779 8-bit Microcontroller with 128K Bytes In-System Programmable

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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

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Peripheral Features–Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes–Two 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode–Real Time Counter with Separate Oscillator–Six PWM Channels –8-channel, 10-bit ADCDifferential mode with selectable gain at 1x, 10x or 200x–Byte-oriented Two-wire Serial Interface –Two Programmable Serial USART–Master/Slave SPI Serial Interface–Programmable Watchdog Timer with Separate On-chip Oscillator–On-chip Analog Comparator–Interrupt and Wake-up on Pin Change

Flash

ATmega1284PPreliminary

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Special Microcontroller Features–Power-on Reset and Programmable Brown-out Detection–Internal Calibrated RC Oscillator–External and Internal Interrupt Sources –Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby and Extended Standby

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I/O and Packages–32 Programmable I/O Lines–40-pin PDIP, 44-lead TQFP, and 44-pad QFN/MLF

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Operating Voltages–1.8 - 5.5V for ATmega1284P

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Speed Grades–0 - 4 MHz @ 1.8 - 5.5V –0 - 10 MHz @ 2.7 - 5.5V–0 - 20 MHz @ 4.5 - 5.5V

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Power Consumption at 1 MHz, 1.8V, 25 C–Active: TBD µA–Power-down Mode: TBD µA–Power-save Mode: TBD µA (Including 32 kHz RTC)
8059B–AVR–05/08