Atmel ATMEGA1284P-AU 8-bit AVR Microcontroller, 128KB Flash, 44-pin TQFP

The Atmel ATMEGA1284P-AU 8-bit AVR Microcontroller is a high-performance, low-power CMOS device with 128 KB of Flash memory, delivering up to 20 MIPS at 20 MHz.

Built upon the advanced AVR RISC architecture and supplied in a compact 44-pin TQFP package, it enables single-cycle instruction execution, balancing processing speed with energy efficiency. This makes it a versatile choice for embedded applications where power management is critical.

Memory and Peripherals

The device provides 128 KB of in-system self-programmable Flash memory, 4 KB of EEPROM and 16 KB of internal SRAM. It supports capacitive touch sensing via the Qtouch library and includes a JTAG interface compliant with IEEE 1149.1 for debugging and programming. 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 Operation

With 32 programmable I/O lines, the microcontroller includes two programmable serial USARTs, a two-wire serial interface (I2C) and a master/slave SPI interface. It operates from 1.8 V to 5.5 V and across an extended temperature range of -40°C to 85°C, making it suitable for industrial controls and consumer electronics.

Key Specifications

• Core: 8-bit AVR RISC
• Maximum 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: 2x USART, I2C, SPI
• Package: 44-pin Thin Quad Flat Pack (TQFP)
• Supply Voltage: 1.8 V to 5.5 V
• Width: 3.3
• Depth: 1.5
• Height: 4.3
• Weight: 2.188 gm

Choose the Atmel ATMEGA1284P-AU for an 8-bit microcontroller with 128 KB Flash, 16 KB SRAM and 32 programmable I/O lines in embedded designs.