Atmega128A-AU SMD IC Microcontroller

Features

• High-performance, Low-power Atmel®AVR®8-bit Microcontroller
• Advanced RISC Architecture
  – 133 Powerful Instructions – Most Single Clock Cycle Execution
  – 32 x 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 64KBytes 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
  – 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
  – 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

Specifications

ATMEGA128A-AU Datasheet