ATMEGA128A-AN 8-bit ATMega AVR® microcontroller, 128 kB, 16 MHz, TQFP-64

Variant with extended temperature range: -40 °C to +105 °C.

The powerful, low-power Microchip 8-bit AVR® RISC-based microcontroller. Properties • Powerful, low-power Atmel®AVR®8-bit microcontroller • Advanced RISC architecture - 133 powerful instructions - Most single cycle cycles are executed - 32 x 8 general purpose work registers + peripheral tax registers - Fully static operation - Up to 16MIPS throughput at 16MHz - On-chip 2-stroke multiplier • High End Endurance Non-volatile memory segments - 128Kbytes 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-and-write operation - Up to 64Kbytes of optional external memory - Programming lock for software security - SPI interface for in-system programming - Support for the QTouch® library - Capacitive touch buttons, sliders and wheels • QTouch and QMatrix acquisition - Up to 64 sense channels • JTAG (IEEE Std. 1149.1 compliant) interface - JTAG standard boundary scan capabilities - Extensive on-chip debug support - Programming of Flash, EEPROM, Fuses and Lock Bits via the JTAG interface • Peripheral features - Two 8-bit timers/counters with separate prescalers and comparison modes - Two advanced 16-bit timers/counters with separate pre-divider, comparison mode and recording mode - Real-time counter with separate oscillator - Two 8-bit PWM channels - 6 PWM channels with programmable resolution from 2 to 16 bits - Comparison modulator output - 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 serial two-wire 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 - Internally calibrated RC oscillator - External and internal interrupt sources - Six sleep modes: Idle, ADC noise reduction, power saving, shutdown, standby and extended standby - Software selectable clock frequency - ATmega103 compatibility mode selected by a backup - Global pull-up lock • I/O and chassis - 53 programmable I/O lines - 64-pin TQFP and 64-pin QFN/MLF