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ATMEGA1284-PU 8 Bit 128K AVR Microcontroller


146 in stock

SKU: IC-ATMEGA1284-PU Category: Brand: .


The Atmel® AVR® ATmega31284 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
ATmega1284 achieves throughputs approaching 20 MIPS at 20MHz allowing the system designer
to optimize power consumption versus processing speed.


  • High-performance, Low-power Atmel® AVR® 8-bit Microcontroller
  • Advanced RISC Architecture
    • 131 Powerful Instructions – Most Single-clock Cycle Execution
    • 32 x 8 General Purpose Working Registers
    • Fully Static Operation
    • Up to 20MIPS Throughput at 20MHz
    • On-chip 2-cycle Multiplier
  • High Endurance Non-volatile Memory segments
    • 128Kbytes of In-System Self-programmable Flash program memory
    • 4KBytes EEPROM
    • 16Kbytes Internal SRAM
    • Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
    • Data retention: 20 years at 85°C/100 years at 25°C(1)
    • 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
  • 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 Prescalers and Compare Modes
    • One/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 ADC
      • Differential 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
  • 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
  • I/O and Packages
    • 32 Programmable I/O Lines
    • 40-pin PDIP
  • Operating Voltages
    • 1.8V – 5.5V
  • Speed Grades
    • 0-4MHz @ 1.8-5.5V
    • 0-10MHz @ 2.7-5.5V
    • 0-20MHz @ 4.5-5.5V
  • Power Consumption at 1MHz, 1.8V, 25°C
    • Active: 0.4mA
    • Power-down Mode: 0.1μA
    • Power-save Mode: 0.6μA (Including 32kHz RTC)





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