Atmel ATMEGA1284P-AU 8-bit AVR Microcontroller, 128KB Flash, 44-pin TQFP
Atmel 8-bit AVR microcontroller with 128KB Flash, 20MHz speed, 32 I/O, wide 1.8-5.5V range. Ideal for embedded design.
The Atmel ATMEGA1284P-AU is a high-performance, low-power CMOS 8-bit microcontroller built upon the advanced AVR RISC architecture. Delivered in a compact 44-pin TQFP package, it delivers impressive throughputs of up to 20 MIPS at 20 MHz, enabling powerful single-cycle instruction execution for an optimal balance of processing speed and energy efficiency. This makes it an exceptionally versatile choice for a wide range of embedded applications where power management is critical.
This microcontroller is equipped with a generous 128KB of in-system self-programmable Flash memory, 4KB of EEPROM, and 16KB of internal SRAM. It supports capacitive touch sensing via the Qtouch library and features a JTAG interface compliant with IEEE standard 1149.1 for advanced debugging and programming. Additional integrated peripherals include an 8-channel, 10-bit ADC, two 8-bit timers/counters, two enhanced 16-bit timers/counters with PWM, a programmable watchdog timer, and a real-time counter.
Connectivity and Flexibility
The ATMEGA1284P-AU offers extensive connectivity with 32 programmable I/O lines. It includes two programmable serial USARTs for asynchronous communication, a two-wire serial interface (I2C), and a master/slave SPI interface. Its wide operating voltage range from 1.8V to 5.5V and an extended operating temperature range from -40°C to 85°C ensure reliable performance in diverse and demanding environments, from industrial controls to consumer electronics.
Key Specifications at a Glance
- Core: 8-bit AVR RISC
- Max CPU Speed: 20 MHz
- Flash Memory: 128 KB
- SRAM: 16 KB
- EEPROM: 4 KB
- Digital I/O Pins: 32
- ADC: 8 channels, 10-bit resolution
- Communication Peripherals: 2x USART, I2C, SPI
- Package: 44-pin Thin Quad Flat Pack (TQFP)
- Supply Voltage: 1.8V - 5.5V
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