ATMEGA1280-16AU
IC MCU 8BIT 128KB FLASH 100TQFP
Quick Answer: The ATMEGA1280-16AU from Microchip Technology is an 8-bit AVR microcontroller for embedded control designs that require multiple digital I/O paths, serial communication interfaces, and on-chip analog measurement.
- Manufacturer
- Microchip Technology
- Product Category
- Microcontrollers - MCU
- Package
- 100-TQFP
- Stock
- 3,480 pcs
- Availability
- Current quantity subject to confirmation.
Product Attributes
| Manufacturer | Microchip Technology |
|---|---|
| Product Category | Microcontrollers - MCU |
| Connectivity | EBI/EMI, I2C, SPI, UART/USART |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Data Converters | A/D 16x10b |
| EEPROM Size | 4K x 8 |
| Mounting Type | Surface Mount |
| Number of I/O | 86 |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Oscillator Type | Internal |
| Package | Tray |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Product status | Active |
| Program Memory Size | 128KB (64K x 16) |
| Program Memory Type | Flash |
| RAM Size | 8K x 8 |
| Series | AVR® ATmega |
| Speed | 16MHz |
| Supplier Device Package | 100-TQFP (14x14) |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
| Datasheet | View Datasheet PDF |
Procurement Snapshot
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Detailed Description for ATMEGA1280-16AU
Product Overview
The ATMEGA1280-16AU from Microchip Technology is an 8-bit AVR microcontroller for embedded control designs that require multiple digital I/O paths, serial communication interfaces, and on-chip analog measurement. It provides 128KB (64K x 16) FLASH program memory, 8K x 8 RAM, and 4K x 8 EEPROM, with a 16MHz speed rating and an internal oscillator. The device uses a 100-TQFP (14x14) surface-mount package and operates from a 2.7V to 5.5V supply over a temperature range of -40°C to 85°C.
Key Features
- 8-bit AVR core with 16MHz speed and internal oscillator.
- 128KB (64K x 16) FLASH program memory, 8K x 8 RAM, and 4K x 8 EEPROM.
- 86 I/O pins for digital control, sensing, and peripheral interfacing.
- EBI/EMI, I2C, SPI, and UART/USART connectivity.
- 16-channel 10-bit ADC, PWM, brown-out detect/reset, POR, and WDT.
Applications
- Embedded control boards using many digital inputs and outputs for switches, indicators, or discrete control signals.
- Sensor measurement modules sampling multiple analog signals through the 16-channel 10-bit ADC.
- Peripheral interface units connecting to I2C, SPI, UART/USART, or EBI/EMI devices.
- PWM-driven output stages for timing-based actuation or modulation.
Design & Procurement Notes
Design teams should verify the 100-TQFP (14x14) surface-mount footprint, pinout, and PCB routing before layout, because the 86 I/O and multiple communication interfaces require careful signal placement. The 2.7V to 5.5V supply range and -40°C to 85°C operating temperature range should be checked against the final power and environmental conditions. The 128KB FLASH, 8K x 8 RAM, and 4K x 8 EEPROM provide fixed on-chip memory resources, so firmware size and data storage needs should be mapped to these capacities. The device has an internal oscillator and a 16MHz speed rating, while external timing requirements, analog input layout, and brown-out, POR, and watchdog behavior should be reviewed during system integration.
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