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 BitsIn

-System Programming by On-chip Boot ProgramTrue Read-While-Write Operation

– Up to 64Kbytes Optional External Memory Space

– Programming Lock for Software Security

– SPI Interface for In-System Programming

• 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

– Two Expanded 16-bit Timer/Counters with Separate Prescaler, Compare Mode and CaptureMode

– 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 ADC8 Single-ended Channels7 Differential Channels2 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, andExtended 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 ATmega128L

– 4.5 - 5.5V ATmega128

• Speed Grade

s– 0 - 8MHz ATmega128L

– 0 - 16MHz ATmega128