Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
MICROCHIP ATMEGA328-AU ATMEGA328
Configuration
1 options
Configuration
Electronic Component
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MICROCHIP ATMEGA328-AU
- Type
- MICROCHIP
- Minimum package
- 2500 托盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MICROCHIP
- Electronic Component
- ATMEGA328-AU
- Electronic Component
- 1
- Package
- TQFP-32(7x7)
- Electronic Component
- MCU(MCU / MPU / SOC)
- Electronic Component
- 1.53g
- CPU
- 8 Bit
- CPU
- AVR
- I / O
- 23
- RAM
- 2KB
- Electronic Component
- 1
- ADC
- 10bit
- EEPROM
- 1KB
- Features
- (BOR / LVD / LVR / LVI);; positions(POR); Gate positions; Built-in General Purpose; Built-in Temperature Sensor; Programmable Gate
- Electronic Component
- BM0209751279
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ATMEGA328-AU 产品概述
一、产品简介
ATMEGA328-AU 是 MICROCHIP（美国微芯）基于 AVR 内核的高性价比 8 位单片机，工作电压范围宽（1.8V–5.5V），最高主频可达 20MHz，程序存储容量 32KB，提供 23 个通用 I/O，内置 10bit ADC，适合对成本、功耗和功能有均衡要求的嵌入式应用。
二、主要性能参数
- CPU 内核：AVR 8 位 RISC 架构
- 最高主频：20MHz（外部晶振或内部振荡源）
- 程序存储：32KB Flash
- I/O 数量：23 个通用数字 I/O
- ADC：10bit 分辨率、适用于多路模拟采样
- 工作电压：1.8V ~ 5.5V，适配低功耗与 5V 系统
- 品牌与封装：MICROCHIP，TQFP-32（7×7mm）
三、外设与接口
ATMEGA328-AU 集成常用外设模块，包括多路定时/计数器、UART/USART、SPI、I²C（TWI）等，能满足串行通信、PWM 控制、传感器采集等常见需求。10bit ADC 适合中等精度的模拟量采集与传感器接口。
四、电气特性与供电
宽工作电压使器件可在 1.8V 低压（更低功耗）和传统 5V 逻辑系统中使用。设计时应关注电源滤波与去耦（0.1µF 陶瓷近芯片），以及复位电路和晶振匹配以保证稳定工作。I/O 驱动能力需参考厂商电流规范以避免过流。
五、封装与机械特性
TQFP-32（7×7mm）封装适合表贴组装，利于中密度 PCB 设计与手工焊接。布局时考虑散热路径和大电流信号走线，便于后期调试与焊接检查。
六、开发支持与调试
芯片兼容主流 AVR 开发工具链（AVR-GCC、Microchip Studio），支持 ISP/SPI 编程与调试。社区生态成熟，示例代码与驱动丰富，有利于快速开发与原型验证。
七、典型应用场景
适用于家居自动化、传感器数据采集、消费类电子、工业控制、教育与原型开发等领域。宽电压特性使其在电池供电与混合电压系统中尤为灵活。
八、设计注意事项与建议
- 建议在电源入口和芯片电源脚附近放置充分的去耦电容并考虑输入滤波；
- 为保证 20MHz 稳定运行，选择合适的晶振与旁路电容并配置正确的时钟源；
- 注意 I/O 引脚的最大电流限制和总片上 I/O 电流约束，避免超出规格；
- 布局时优先考虑复位、时钟与编程接口的可访问性，便于现场调试与固件更新。
总体而言，ATMEGA328-AU 在功能、生态与成本之间取得良好平衡，适合广泛的嵌入式系统与学习开发应用。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
Model, package, availability, and BOM fit reviewed before quotation.
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Sourcing availability signal
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Examples of how common component sourcing requests are organized.
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products
Packaged components ready for RFQ.
1 Piece Integrated Circuit for IRS20124S IRS21956S SOP-20 IRS2453DS SOP-14
- Model
- IRS20124S
- Package
