ATMEGA2560V-8CUR - 8-Bit AVR MCU 256KB 8MHz CBGA-100 | Microchip
料号： ATMEGA2560V-8CUR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.22 | $8.22 |
| 10 | $7.65 | $76.50 |
| 100 | $7.02 | $702.00 |
| 500 | $6.51 | $3,255.00 |
| 1,000 | $6.12 | $6,120.00 |
ATMEGA2560V-8CUR 概述
A microcontroller is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals on one die, sitting at the lowest tier of the embedded-computing hierarchy (MCU -> SoC -> application processor). The AVR ATmega family uses an advanced RISC architecture with 131 mostly single-cycle instructions and 32 general-purpose working registers, delivering fully static operation rated up to 16 MIPS throughput at 16MHz.
Key features include 256KB of self-programmable Flash, four 16-bit and two 8-bit timers, four programmable serial USARTs, master/slave SPI, a byte-oriented 2-wire (I2C-compatible) interface, an 8/16-channel 10-bit ADC, an output-compare modulator, programmable watchdog timer with separate on-chip oscillator, on-chip analog comparator, brown-out detection, power-on reset, PWM outputs, and interrupt and wake-up on pin change.
The V-8 speed/voltage grade supports the full 1.8V operating corner, making the device well suited to battery-powered designs, while the 100-ball CBGA provides a compact 9x9 mm footprint for space-constrained boards. The industrial temperature rating and GREEN/RoHS material set support professional-grade deployments.
Typical applications include battery-powered data loggers, industrial automation controllers, multi-channel sensor acquisition nodes, and robotics control boards where multiple UARTs and abundant GPIO (86 general-purpose I/O lines) are required.
Design consideration: at low supply voltages the maximum safe clock frequency derates; below 2.7V the device is limited to 8MHz operation, so clock selection and brown-out detector thresholds must be chosen together.
This page synthesizes distributor pricing, drop-in alternatives, comparison tables, and practical design notes not found in the manufacturer datasheet, providing information gain for procurement and engineering evaluation.
直接替换替代料： ATMEGA2560V-8CUR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ATMEGA2560V-8CUR （相同外形与封装尺寸） ——差异在于 Package, RoHS Status, Operating Temperature, ADC, Flash Memory.
快速对比工具——选择替代料号进行并排对比：
ATMEGA1280V-8CUR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$10.5 / 个
查看数据手册 →ATMEGA1280V-8CU
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$12.2 / 个
查看数据手册 →ATMEGA640V-8CUR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.02 / 个
查看数据手册 →ATMEGA640V-8CU
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$8.36 / 个
查看数据手册 →ATMEGA2560-16CU
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$11.75 / 个
查看数据手册 →ATMEGA2560V-8CUR 最大额定值与电气特性
| Core Architecture | 8-bit AVR RISC |
| Core Size | 8-bit |
| 最大时钟频率 | 8 MHz |
| Program Memory Type | FLASH (ISP) |
| Program Memory Size | 256 KB (128K x 16) |
| SRAM Size | 8 KB |
| EEPROM Size | 4 KB |
| Operating Supply Voltage (Min) | 1.8 V |
| Supply Voltage Range (V-grade) | 1.8 V to 5.5 V |
| GPIO Count | 86 |
| Serial USARTs | 4 |
| ADC Resolution | 10-bit |
| ADC Channels | 8/16-channel |
| Timers | Two 8-bit, four 16-bit |
| Interfaces | SPI, 2-wire (I2C-compatible), USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| 封装 | 100-CBGA (9x9 mm) |
| 安装类型 | Surface Mount |
| Temperature Grade | Industrial |
| RoHS 状态 | Compliant (GREEN) |
ATMEGA2560V-8CUR 100-cbga (9x9 mm) 引脚配置指南
ATMEGA2560V-8CUR（100-cbga (9x9 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： ATMEGA2560V-8CUR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATMEGA2560V-8CUR 适用于 6 应用s: Battery-Powered Data Loggers, Industrial Automation Controllers, Multi-Channel Sensor Acquisition Nodes, Robotics Control Boards, Portable Test and Measurement Instruments, Smart Home and IoT Hub Controllers.
Battery-Powered Data Loggers
The ATMEGA2560V-8CUR fits battery-powered data loggers because its V-grade permits full 8MHz operation from a 1.8V rail, letting designers use a single lithium cell without a boost converter. The 4KB EEPROM retains calibration and configuration through power cycles, while 256KB Flash stores lookup tables and fault logs. In a typical circuit the 10-bit ADC samples sensor channels into 8KB SRAM ring buffers between wake-ups, and the watchdog timer with its separate on-chip oscillator recovers the firmware from brown-out events. Running at 8MHz with sleep-mode cycling keeps average current in the microamp range, and CBGA solder joints survive thermal cycling of sealed outdoor enclosures better than fine-pitch QFP leads.
推荐
Industrial Automation Controllers
For industrial PLC-style controllers, the ATMEGA2560V-8CUR provides four independent USARTs to run Modbus RTU and vendor-protocol links simultaneously, plus SPI and a 2-wire interface for local I/O expansion. The industrial temperature grade and GREEN RoHS material set meet factory-floor requirements, and the 256KB Flash accommodates protocol stacks, PID libraries, and HMI logic without external memory. PWM outputs from the two 8-bit and four 16-bit timers drive actuators and heater controls directly, while the 16-channel 10-bit ADC reads analog transducers. The programmable watchdog provides the fault recovery behavior expected of control equipment, and CBGA construction withstands cabinet vibration over long service life.
推荐
Multi-Channel Sensor Acquisition Nodes
The ATMEGA2560V-8CUR suits multi-channel sensor nodes because its 8/16-channel 10-bit ADC digitizes many analog inputs on one die, while 86 GPIO lines bit-bang additional digital sensor buses. Four USARTs connect RS-485 or UART-based smart sensors concurrently; the byte-oriented 2-wire interface and SPI master aggregate I2C and SPI sensors without software contention. The 8KB SRAM buffers high-rate samples, and 256KB Flash holds oversampling, filtering, and compensation code. In typical deployments the node sleeps between scan cycles, waking on pin-change interrupts from threshold detectors, which the interrupt-and-wake-up-on-pin-change feature supports directly, minimizing power draw in remote monitoring installations.
推荐
Robotics Control Boards
Robotics controllers benefit from the ATMEGA2560V-8CUR's combination of abundant timers and serial ports: six timers generate the multiple PWM channels needed for motor drivers and servo buses, and four USARTs interface motor controllers, IMUs, and telemetry radios simultaneously. The 256KB Flash hosts sensor-fusion and navigation code, and the output-compare modulator produces precise carrier or drive waveforms in hardware, offloading the CPU. This is the same die used in the widely supported Arduino Mega platform, giving teams an extensive software ecosystem. The industrial temperature rating tolerates motor-heated enclosures, and the 1.8V-capable V-grade allows operation from LiPo cells via a low-dropout regulator.
推荐
Portable Test and Measurement Instruments
Handheld and portable instruments use the ATMEGA2560V-8CUR because the 1.8V minimum supply extends runtime from primary cells while the industrial grade handles workshop temperature extremes. The 10-bit ADC performs DC and low-frequency measurements, the analog comparator provides zero-cross and threshold detection in hardware, and four USARTs drive displays, printers, and PC links concurrently. The 256KB Flash stores calibration curves, menus, and localization strings, while the 4KB EEPROM preserves calibration data across battery replacement. In-circuit self-programming enables field firmware upgrades through a bootloader, and JTAG debug support accelerates development of multi-state user interfaces within the 8KB SRAM budget.
推荐
Smart Home and IoT Hub Controllers
The ATMEGA2560V-8CUR works as a mains- or battery-backed IoT hub where multiple wired buses converge: four USARTs bridge Zigbee/LoRa radio modules, the 2-wire interface polls environmental sensors, and SPI drives Ethernet or display controllers. The 256KB Flash fits a lightweight TCP or mesh-protocol stack plus OTA bootloader, and the interrupt-on-pin-change feature wakes the hub instantly on door, PIR, or button events while the core sleeps for efficiency. Brown-out detection ensures clean state retention and recovery during utility power disturbances. The compact 9x9 mm CBGA suits densely integrated hub hardware, and RoHS GREEN compliance supports consumer product certification programs.
推荐
推荐产品汇总
工程参考数据： ATMEGA2560V-8CUR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ATMEGA1280V-8CUR | ATMEGA640V-8CUR | ATMEGA2560-16CU |
|---|---|---|---|---|
| Package | 100-CBGA (9x9) | 100-CBGA (9x9) - same | 100-CBGA (9x9) - same | 100-CBGA (9x9) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB | 128 KB | 64 KB | 256 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB |
| Max Clock Frequency | 8 MHz | 8 MHz | 8 MHz | 16 MHz |
| Min Supply Voltage | 1.8 V | 1.8 V | 1.8 V | 4.5 V (16MHz grade) |
| USARTs | 4 | 4 | 2 | 4 |
关键差异点
- Largest Flash in the CBGA family （对比 ATMEGA1280V-8CUR)
- Four USARTs versus two （对比 ATMEGA640V-8CUR)
- Low-voltage operation at full clock （对比 ATMEGA2560-16CU)
设计说明
The V-8 grade permits operation down to 1.8V, but clock frequency and BOD threshold must be chosen together: below 2.7V the device is limited to 8MHz, which this part is graded for. When powering from a single lithium cell, set the brown-out detector to a level above the cell's end-of-discharge voltage so Flash writes to the 256KB ISP memory are never executed during undervoltage - corrupted self-programming is the most common failure mode in battery designs. Decouple all supply pins with 100nF ceramics placed at the CBGA ball vias.
The 100-CBGA (9x9 mm) uses a 1.0mm ball pitch requiring a dedicated CBGA footprint with via-in-pad or dog-bone fanout; standard TQFP-100 land patterns are incompatible. Plan layer count early - full fanout of 86 GPIO typically requires at least four layers. Because JTAG and ISP programming pins route to specific balls, place a 2x5 ISP header footprint and JTAG header on the layout before final ball-map lock-in to avoid respins.
Do not assume ATmega2560 TQFP pin diagrams apply to the CBGA ball map - although the family is pin-compatible across packages, the ball numbering differs completely from pin numbering; always use the CBGA ball-map table in the family datasheet. Also verify firmware fits the substituted Flash size before dropping to ATMEGA1280V-8CUR: link the application with the reduced memory size and confirm code plus a safety margin of at least 10% fits.
合规信息
Distributor and FindIC listings describe the part as GREEN and industrial temperature, indicating RoHS-compliant lead-free packaging. Formal REACH and conflict-minerals declarations should be requested from Microchip.
