ATMEGA2560V-8AI - 8MHz 256KB AVR MCU | Microchip
MPN: ATMEGA2560V-8AI ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
ATMEGA2560V-8AI Overview
What is an AVR microcontroller? An AVR is an 8-bit RISC microcontroller architecture designed by Microchip for embedded control, communications, and real-time peripheral management. In the system hierarchy, ATMEGA2560V-8AI is a microcontroller within the integrated-circuit and embedded-processing categories. Its program memory, SRAM, EEPROM, I/O ports, timers, serial interfaces, and interrupt system allow a single device to combine control logic with multiple communication channels.
Key features include 256 KB of Flash organized as 128K x 16, 8 KB of internal SRAM, 4 KB of EEPROM, and 86 general-purpose I/O lines. The device also includes four USARTs, an SPI interface, a byte-oriented two-wire serial interface, an external memory interface, and flexible timer/counter resources. These features support applications requiring multiple serial links, periodic timing, analog-to-digital conversion, and firmware storage.
The ATmega core provides 32 general-purpose working registers connected directly to the arithmetic logic unit. This architecture supports efficient register-based instruction execution and is well suited to compact embedded control loops. The manufacturer datasheet identifies the ATmega2560 family as a high-performance, low-power AVR RISC-based device with real-time counters and flexible timer/counter blocks.
Typical applications include industrial automation controllers, data acquisition systems, communications gateways, motor-control and sequencing equipment, embedded test instruments, and custom Arduino-compatible or similar embedded platforms. The four USARTs are especially useful when the design must connect several independent serial devices.
Designers should verify the exact pin functions, power rails, clock requirements, programming interface, and timing constraints against the manufacturer datasheet before layout. The 100-pin TQFP footprint requires careful fanout and exposed-pad or thermal considerations where applicable. Firmware replacement should also be validated because different ATmega variants can differ in peripheral availability, fuse behavior, and package details.
This page combines verified manufacturer and distributor information with package, interface, application, comparison, and design guidance to support rapid component selection and sourcing.
Drop-in alternatives for ATMEGA2560V-8AI — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ATMEGA2560V-8AI (same form factor and footprint) — differing in Package, ADC, Timers, Mounting Type, SRAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATMEGA2560V-8AU
✅ Drop-In✓ In Stock
$8.95 / Unit
View Datasheet →ATMEGA2560V-8CUR
✅ Drop-In✓ In Stock
$6.12 / Unit
View Datasheet →ATMEGA2560-16AUR
✅ Drop-In📋 Reference alternative (not in catalog)
ATMEGA1280V-8CU
✅ Drop-In✓ In Stock
$12.2 / Unit
View Datasheet →ATMEGA103-6AI
✅ Drop-In✓ In Stock
$8.6 / Unit
View Datasheet →ATMEGA2560V-8AI Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit AVR RISC microcontroller |
| Maximum Clock Frequency | 8 MHz |
| Flash Memory | 256 KB (128K x 16) |
| SRAM | 8 KB |
| EEPROM | 4 KB |
| General-Purpose I/O Lines | 86 |
| General-Purpose Working Registers | 32 |
| USART Modules | 4 |
| Serial Interfaces | EBI/EMI, I2C, SPI, UART/USART |
| Package | 100-TQFP (14x14 mm) |
| Mounting Type | Surface Mount |
| Core Architecture | AVR RISC |
| Program Memory Type | In-System Programmable Flash |
| Timers | Real-time counter and flexible timer/counter resources |
ATMEGA2560V-8AI 100-tqfp (14x14 mm) Pin Configuration Guide
Pin configuration for ATMEGA2560V-8AI (100-tqfp (14x14 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for ATMEGA2560V-8AI.
Refer to the datasheet for full pin configuration.
Typical Applications
ATMEGA2560V-8AI is suitable for 6 applications: Industrial Automation Controller, Multi-Port Communications Gateway, Data Acquisition and Control System, Motor Sequencing and Embedded Control, Embedded Test and Measurement Instrument, Robotics and Embedded Platform Controller.
Industrial Automation Controller
ATMEGA2560V-8AI fits an industrial automation controller that must coordinate multiple sensors, actuators, and serial devices. Its 86 general-purpose I/O lines provide ample digital integration, while four USART modules allow separate links for local equipment, diagnostics, or a supervisory controller. The 256 KB Flash supports larger control firmware, and 8 KB SRAM accommodates task state and communication buffers. At 8 MHz, the AVR core is appropriate for supervisory logic and sequencing, although loop timing must be checked against the selected clock and peripherals. Use the 100-TQFP footprint with careful escape routing and validate industrial temperature requirements against the manufacturer documentation.
Recommended
Multi-Port Communications Gateway
ATMEGA2560V-8AI is well suited to a compact communications gateway because it provides four USARTs together with I2C and SPI. Firmware can bridge several local serial devices, collect status data, and pass information to a host interface without requiring a separate communications processor. The 256 KB Flash and 8 KB SRAM provide more headroom than small 8-bit MCUs, while 86 I/O lines support indicators, reset lines, and control signals. The main trade-off is the 8 MHz clock, which is best for moderate protocol traffic rather than high-bandwidth Ethernet or USB streaming. Pin multiplexing and peripheral functions must be checked from the exact datasheet.
Recommended
Data Acquisition and Control System
ATMEGA2560V-8AI can serve as the control center for a moderate data-acquisition system that combines digital inputs, sensor conditioning interfaces, and serial or SPI sensors. The 86 I/O lines simplify distributed digital monitoring, while the AVR core handles sampling control, threshold logic, data formatting, and host communication. Its 256 KB program memory allows drivers and application logic to coexist, and 4 KB EEPROM can retain configuration parameters where appropriate. The 8 MHz operating speed supports many control tasks but should be matched to the sensor bandwidth and interrupt load. Confirm ADC characteristics, external-memory limits, and electrical ratings before selecting the device for precision measurement designs.
Recommended
Motor Sequencing and Embedded Control
ATMEGA2560V-8AI is suitable for motor-sequencing, actuator-control, and embedded machinery-control modules where several independent I/O channels must be coordinated. Timers and interrupt-driven control can manage step sequences, interlocks, fault inputs, and status outputs, while the four USARTs can connect to a host or remote diagnostics unit. The large 100-pin package provides numerous external interfaces but requires deliberate PCB fanout. The 8 MHz clock is sufficient for many low- to moderate-speed control sequences; high-speed motor algorithms may require a faster MCU or dedicated driver. Confirm timer pin assignments and power requirements against the manufacturer datasheet.
Recommended
Embedded Test and Measurement Instrument
ATMEGA2560V-8AI can be used in custom test and measurement equipment when the instrument needs broad digital control, several communications ports, and programmable firmware. Its 256 KB Flash accommodates test sequences, calibration tables, and communication stacks, while 4 KB EEPROM can store board-specific parameters. Four USARTs support separate links to instruments, computers, or service interfaces, and SPI or I2C can connect to converters and sensors. The 8 MHz core is suitable for supervisory control and measurement orchestration rather than high-rate signal processing. Accurate analog performance depends on external converters, references, and layout, so validate those separately.
Recommended
Robotics and Embedded Platform Controller
ATMEGA2560V-8AI fits a robotics controller that combines actuator sequencing, sensor collection, user interfaces, and communications in one MCU. The 86 I/O lines support encoders, limit switches, LEDs, motor-control signals, and expansion buses, while the four USARTs allow separate connections to sensors, a host computer, or a radio module. Firmware storage and SRAM are sufficient for moderate control stacks, and the 8 MHz AVR core is appropriate for real-time sequencing under manageable interrupt loads. The package is large compared with modern low-pin MCUs, but that footprint is advantageous when a design needs many discrete signals and legacy AVR tooling.
Recommended
Recommended Products Summary
Engineering reference data for ATMEGA2560V-8AI — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMEGA2560V-8AU | ATMEGA2560V-8CUR | ATMEGA2560-16AUR | ATMEGA1280V-8CU | ATMEGA103-6AI |
|---|---|---|---|---|---|---|
| Package | 100-TQFP (14x14 mm) | TQFP-100 (package family; exact suffix details not supplied) | TQFP-100 (package family; exact suffix details not supplied) | TQFP-100 (package family; exact suffix details not supplied) | TQFP-100 (package family; exact suffix details not supplied) | TQFP-100 (package family; exact suffix details not supplied) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
Key Differentiators
- Large integrated memory and I/O resources (vs ATMEGA1280V-8CU)
- Four USART modules in one MCU (vs ATMEGA103-6AI)
- 8 MHz grade with 256 KB Flash (vs ATMEGA2560-16AUR)
Design Notes
Route the 100-TQFP perimeter pins with short, orderly escape traces and provide adequate fanout for programming, clock, reset, power, and communications. The verified package is 100-TQFP (14x14 mm), so use the exact manufacturer land pattern rather than estimating a footprint. Keep sensitive analog and communication routes away from high-current switching paths, and follow the datasheet's decoupling recommendations at the supply pins.
Confirm the device's operating voltage and power-consumption limits from the manufacturer datasheet before designing the supply rail. Provide local bypass capacitance close to the MCU power pins, maintain a stable clock and reset network, and account for current drawn by enabled peripherals. Because the supplied data does not state the operating voltage, do not assume 5 V or 3.3 V without verification.
Do not assume that an ATmega-family suffix is interchangeable merely because the memory size and package appear similar. Confirm pin multiplexing, fuse settings, bootloader behavior, peripheral availability, clock limits, and temperature classification. The alternative candidates in the supplied cross-reference data are comparison leads, not automatically qualified production replacements; validate with a hardware prototype and firmware regression test.
Use separate, short return paths for power, ground, external-memory buses, and serial interfaces. For designs using I2C, SPI, or USART lines, inspect rise time and loading rather than relying only on nominal logic levels. For USB, ADC, or other sensitive peripherals, keep external components and routing away from switching nodes. The available data confirms the interfaces but does not provide complete electrical layout values.
Compliance Information
The supplied verified manufacturer and distributor descriptions identify the device and package but do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than inferred.
