ATMEGA128A-AU, 8bit AVR Microcontroller, 16MHz, 128 kB, 4 kB Flash, 64-Pin TQFP

Description: The ATMEGA128A-AU is a powerful, low-power 8-bit AVR microcontroller designed by Microchip Technology for embedded systems, automotive, and industrial applications. High Performance AVR Core: Executes complex instructions in a single clock cycle. Provides performance near to one MIPS per MHz. Efficiently balances power usage and computing needs. Memory: 128 kB of in-system programmable flash memory. 4 kB EEPROM for non-volatile data storage. 4 kB of inbuilt SRAM for temporary data. Peripheral features: 53 programmable general-purpose I/O lines. Dual programmable serial USARTs. SPI serial interface (master/slave). The Two-Wire Serial Interface (I²C or TWI) enables connection with external sensors and modules. 8-channel, 10-bit ADC for precise analog-to-digital conversions. PWM channels include two 8-bit and six with customizable resolution (2-16 bits). Oscillators and Timer: Two 8-bit timer/counters with separate prescalers and compare modes. Two 16-bit timer/counters with independent prescalers for comparing and capturing modes. Real-time counter with different oscillators for accurate timekeeping. Supports both internal calibrated RC oscillators and external clock sources. Power efficiency: It operates at voltages ranging from 2.7 to 5.5. Power-down consumption is less than 1 µA. Active mode Consumption is about 1 mA per MHz, making it ideal for battery-powered applications. Development and Debugging: Supports the JTAG interface for on-chip debugging and programming. External and internal interrupt sources allow for more efficient multitasking. Read-While-Write functionality enables code execution during flash memory upgrades.