ATMEGA128A 8-bit Microcontroller
A low-power CMOS microcontroller with high-performance AVR RISC architecture
- 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
Top Features:
- Low-power Atmel AVR 8-bit Microcontroller
- Advanced RISC Architecture with 133 Powerful Instructions
- High Endurance Non-volatile Memory segments
- Multiple Timer/Counters and PWM Channels
The ATMEGA128A is a high-performance, low-power 8-bit microcontroller that provides exceptional throughputs, making it ideal for various applications. Its advanced RISC architecture and extensive peripheral features enhance system design flexibility.
The microcontroller includes 128Kbytes of in-system self-programmable Flash program memory, 4Kbytes of EEPROM, and 4Kbytes of internal SRAM. With up to 16MIPS throughput at 16MHz, the ATMEGA128A offers efficient processing capabilities.
Featuring a range of communication interfaces such as SPI, TWI (I2C), and USARTs, the ATMEGA128A supports versatile connectivity options. Additionally, the microcontroller offers JTAG interface for boundary-scan capabilities and extensive on-chip debug support.
With Atmel QTouch® library support, the ATMEGA128A enables capacitive touch buttons, sliders, and wheels, with up to 64 sense channels for enhanced user interaction.
Equipped with multiple timer/counters, PWM channels, and an 8-channel, 10-bit ADC, the ATMEGA128A provides rich peripheral features for various application requirements.
Designed with special microcontroller features such as power-on reset, programmable brown-out detection, and selectable sleep modes, the ATMEGA128A offers enhanced power management and overall system reliability.
Operating at voltages from 2.7V to 5.5V, and with 53 programmable I/O lines, the ATMEGA128A provides flexibility in interfacing with external components and peripherals. With speed grades ranging from 0 to 16MHz, the microcontroller caters to a wide range of processing speed requirements.
Specification:
- 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
* Images are for illustration only; actual product may vary.