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:- Parameters Values Pin count 64 Flash (KB) 128 SRAM (KB) 4 EEPROM (KB) 4 External Memory (KB) 64 General Purpose I/O pins 53 SPI 1 TWI (I2C) 1 USART 2 8-bit Timer/Counters 2 16-bit Timer/Counters 2 PWM channels 6 JTAG Yes Related Document:- ATMEGA1284A SMD Data Sheet