ATMEGA2560V-8AI - 8MHz 256KB AVR MCU | Microchip
MPN： ATMEGA2560V-8AI ✓ 啟用中ATMEGA2560V-8AI 概覽
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.
直接替換替代品，適用於 ATMEGA2560V-8AI — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATMEGA2560V-8AI （相同外形與佔位） — 差異在於 Package, ADC, Timers, Mounting Type, SRAM.
ATMEGA2560V-8AU
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA2560V-8CUR
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA2560-16AUR
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA1280V-8CU
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA103-6AI
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA2560V-8AI 最大額定值與電氣特性
| Product Type | 8-bit AVR RISC microcontroller |
| 最大時脈頻率 | 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 |
| 封裝 | 100-TQFP (14x14 mm) |
| 安裝類型 | 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) 腳位配置指南
ATMEGA2560V-8AI（100-tqfp (14x14 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： ATMEGA2560V-8AI.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATMEGA2560V-8AI 適用於 6 應用s: 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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 ATMEGA2560V-8AI — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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 |
主要差異化特點
- Large integrated memory and I/O resources (對比ATMEGA1280V-8CU)
- Four USART modules in one MCU (對比ATMEGA103-6AI)
- 8 MHz grade with 256 KB Flash (對比ATMEGA2560-16AUR)
設計說明
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.
合規資訊
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.
