ATMEGA128A – AU Microcontroller – (SMD TQFP Package) – 8-Bit 64 Pin 128K Flash Microcontroller

The ATMEGA128A 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 ATMEGA128A achieves through puts close to 1MIPS per MHz. This empowers system designer to optimize the device for power consumption versus processing speed. 

Features:-

? High-performance, Low-power Atmel AVR 8-bit Microcontroller 

? Advanced RISC Architecture 

    – 133 Powerful Instructions 

    – Most Single-clock Cycle Execution 

    –  32 ? 8 General Purpose Working Registers + Peripheral Control Registers 

    –  Fully Static Operation 

    –  Up to 16MIPS Throughput at 16MHz 

    – On-chip 2-cycle Multiplier

? High Endurance Non-volatile Memory segments 

    – 128Kbytes of In-System Self-programmable Flash program memory 

    – 4Kbytes EEPROM 

    – 4Kbytes 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 

    –  Up to 64 Kbytes Optional External Memory Space 

    –  Programming Lock for Software Security

    –  SPI Interface for In-System Programming 

? JTAG (IEEE std. 1149.1 Compliant) Interface

     – Boundary-scan Capabilities According to the JTAG Standard 

     – Extensive On-chip Debug Support Atmel-8151

     – Programming of Flash, EEPROM, Fuses and Lock Bits through the JTAG Interface

? Atmel QTouch? library support 

     ? Capacitive touch buttons, sliders and wheels 

     ? Atmel QTouch and QMatrix acquisition 

     ? Up to 64 sense channels 

? Peripheral Features 

     ? Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes 

    ? Two Expanded 16-bit Timer/Counters with Separate Prescaler, Compare Mode and Capture Mode 

    ? Real Time Counter with Separate Oscillator 

    ? Two 8-bit PWM Channels 

    ? 6 PWM Channels with Programmable Resolution from 2 to 16 Bits

    ? Output Compare Modulator 

    ? 8-channel, 10-bit ADC 

       ? 8 Single-ended Channels 

       ? 7 Differential Channels 

       ? 2 Differential Channels with Programmable Gain at 1x, 10x, or 200x 

   ? Byte-oriented Two-wire Serial Interface

   ? Dual Programmable Serial USARTs 

   ? Master/Slave SPI Serial Interface 

   ? Programmable Watchdog Timer with On-chip Oscillator 

   ? On-chip Analog Comparator 

? 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 ‘

   ? Software Selectable Clock Frequency 

   ? ATmega103 Compatibility Mode Selected by a Fuse 

   ? Global Pull-up Disable 

? I/O and Packages 

   ? 53 Programmable I/O Lines 

   ? 64-lead TQFP and 64-pad QFN/MLF 

? Operating Voltages 

   ? 2.7 – 5.5V 

? Speed Grades

   ? 0 – 16MHz

Specification:-

Related Document:-

 ATMEGA1284A SMD Data Sheet