WMSIC Electronic Components

MICROCHIP ATTINY3217-MFR ATTINY3217

ModelATTINY3217-MFR
PackageWQFN-24-EP(4x4)
BrandMICROCHIP
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICROCHIP ATTINY3217-MFR
Type
MICROCHIP
Minimum package
6000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICROCHIP
Electronic Component
ATTINY3217-MFR
Electronic Component
1
Package
WQFN-24-EP(4x4)
Electronic Component
MCU(MCU / MPU / SOC)
Electronic Component
0.07g
CPU
8 Bit
CPU
AVR
I / O
22
RAM
2KB
Electronic Component
1
EEPROM
256Byte
Features
Gate (WWDG); (BOR / LVD / LVR / LVI); positions(POR); CRC;; Built-in General Purpose
Electronic Component
BM0228061140
Operating Temperature
40℃~+125℃

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

ATTINY3217-MFR 产品概述

一、简介

ATTINY3217-MFR 是 Microchip(美国微芯)推出的一款 8 位 AVR 微控制器,针对空间受限、成本敏感且需多路 GPIO 的嵌入式应用优化设计。器件集成度高、功耗低、工作电压范围宽,适合电池供电和工业环境使用,是简单控制、传感器接口与人机交互等场景的理想选择。

二、主要规格

  • CPU 内核:8-bit AVR
  • 最大主频:16 MHz
  • 程序存储器:32 KB Flash
  • RAM:2 KB
  • EEPROM:256 Byte
  • I/O 数量:22 路通用 I/O
  • 振荡器类型:内置振荡器(无需外部晶振即可工作)
  • 工作电压:2.7 V ~ 5.5 V
  • 工作温度:-40 ℃ ~ +125 ℃
  • 封装:WQFN-24-EP(4 × 4 mm)
  • 品牌:Microchip(美国微芯)

三、片上资源与外设(概览)

ATTINY3217 提供丰富的片上资源以满足常见应用需求,包括多路数字 I/O、模拟输入、定时器/计数器以及常用串行外设(如 UART、SPI、I²C 等)。内置振荡器简化了硬件设计,Flash 与 EEPROM 的组合有利于代码与运行时数据的存储与保护。

四、封装与环境适应性

WQFN-24-EP(4×4 mm)封装带有底部散热焊盘,便于 PCB 热管理与机械固定,适合空间受限的设计。器件的工业级工作温度(-40 ℃ 到 +125 ℃)和宽电压范围使其可用于工业控制、汽车电子边缘模块及户外设备等苛刻环境。

五、典型应用场景

  • 传感器采集与前端处理(温湿度、压力等)
  • 人机界面驱动(按键扫描、指示灯、LCD/简单显示)
  • 低功耗远程终端与电池供电设备
  • 工业嵌入式控制与简单伺服逻辑
  • 家用电器与智能家居中小型控制单元

六、设计建议与注意事项

  • 电源:在 VCC/GND 处靠近芯片放置去耦电容(0.1 μF + 1 μF)以抑制瞬态;若系统噪声大,考虑加 LDO 或滤波网络。
  • 时钟:内置振荡器满足多数应用精度需求,如对时序要求较高,建议外接晶振或使用校准机制。
  • 封装焊接:WQFN-EP 需注意底部焊盘铺铜与过孔设计,保持良好散热及焊接可靠性。
  • EEPROM 与 Flash:合理安排擦写频次以延长寿命,关键数据可做冗余或校验设计。
  • I/O 保护:若经常连接外部信号或电机等感性负载,建议使用限流电阻或 TVS 保护。

七、开发与调试建议

  • 开发环境:使用 Microchip 官方工具链(如 MPLAB X / AVR-GCC)和调试器(兼容的 UPDI/EDBG 等)进行烧录与单步调试。
  • 固件更新:利用内置的编程接口实现在系统内(ISP)或在外部调试器下的固件升级。
  • 性能优化:在性能与功耗间取舍,合理使用低功耗模式与外设时钟门控以延长电池寿命。

八、总结

ATTINY3217-MFR 是一款面向紧凑空间与多 I/O 要求场景的 8 位 AVR 微控制器,凭借 32 KB Flash、256 B EEPROM、22 路 I/O 和工业级温度适应能力,为中小型嵌入式项目提供了稳定且成本可控的解决方案。在电源管理、封装散热和外设选型上做出合理设计,能够充分发挥其性能与可靠性。

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