8-bit ATMega AVR® microcontroller, 128 kB, 8 MHz, TQFP-64

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
- 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 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 ATmega128L
- 4.5 - 5.5V ATmega128
- Speed Grades
- 0 - 8MHz ATmega128L
- 0 - 16MHz ATmega128