WMSIC Electronic Components

MAXLINEAR SP3221EEY-L/TR SP3221EEY

ModelSP3221EEY-L/TR
Package16-TSSOP
BrandMAXLINEAR
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 24+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
MAXLINEAR SP3221EEY-L / TR
Type
MAXLINEAR
Unit
Electronic Component
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MAXLINEAR
Electronic Component
SP3221EEY-L/TR
Electronic Component
1
Package
16-TSSOP
Type
Transceiver
Electronic Component
RS232IC
Electronic Component
0.181g
Electronic Component
1
Electronic Component
BM0227640193
Operating Temperature
40℃~+85℃
Operating Voltage
3V~5.5V
Receiver
1
Data
250Kbps
Static Current
0.3mA

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

SP3221EEY-L/TR 产品概述

SP3221EEY-L/TR 是一款为串行通信(RS-232 电平)应用设计的单通道收发器,集成了电荷泵、电平转换及高抗静电保护,适合工业级环境下的可靠数据传输。该器件由 MAXLINEAR(迈凌)出品,采用 16 引脚 TSSOP 封装,工作温度覆盖工业级 -40℃ 至 +85℃,在功耗和抗扰度之间取得了良好平衡,特别适合对体积和低功耗有要求的嵌入式系统。

一、核心特点概览

  • 单驱动器/单接收器(1/1)收发器,适合点对点串口接口。
  • 工作电压范围:3.0 V 至 5.5 V,支持单电源供电设计。
  • 集成电荷泵,内部产生必要的 RS-232 驱动电压,无需外部负电源。
  • 数据速率可达 250 kbps,满足典型串口和短距离高速数据传输需求。
  • 低静态电流:0.3 mA(典型),适合电池供电或低功耗系统。
  • 引脚静电保护:对 I/O 引脚具备高达 ±15 kV 的静电放电防护(人体模型),提高系统抗扰能力。
  • 封装:16-TSSOP,适合密度较高的 PCB 布局与自动贴装生产。
  • 类型:收发器(TRANSCEIVER),IC 型号标注为 SP3221EEY-L/TR(带卷盘包装选项)。

二、典型应用场景

  • 工业控制与自动化设备中的 RS-232 串口通信。
  • 工业/商业终端(POS)、条码/读卡器、仪器仪表的串行接口。
  • 嵌入式控制器、单片机或微处理器与外设的点对点串行连接。
  • 需要低功耗或电池供电的手持设备和便携式测量仪器。
  • 医疗仪器、楼宇自控或网络终端等对抗静电能力有要求的应用场合。

三、设计与使用要点

  • 电源与旁路:为保证电荷泵稳定工作与抑制供电噪声,应在 VCC 近端放置 0.1 μF 陶瓷旁路电容,并按器件数据手册连接电荷泵所需的外置电容(通常为 0.1 μF 等)。
  • 布局建议:将电荷泵电容放置在器件引脚旁,缩短相关走线,保持信号地与模拟地的良好回流路径;推荐采用连续接地平面以降低 EMI/EMS 敏感性。
  • 接口匹配:TX/RX 端口应与 MCU/FPGA 的 TTL/CMOS 电平直接连接,器件内部完成到 RS-232 电平的转换;外部 RS-232 线缆应注意走线抗干扰与接地管理。
  • ESD 保护:尽管器件对 I/O 引脚提供 ±15 kV 级别的静电防护,长期可靠性或受强干扰环境下仍建议结合外部防护元件(如浪涌抑制二极管、共模扼流圈)进行系统级防护。
  • 低功耗运行:器件静态电流低至 0.3 mA,适合功耗敏感设计;若需进一步节能,应参考器件手册中的低功耗/掉电模式使用方法。

四、封装与采购提示

  • 标准封装为 16 引脚 TSSOP(便于高密度 PCB 布局)。
  • 型号后缀中的 /TR 通常表示卷带(Tape & Reel)包装,方便表面贴装(SMT)自动化安装。
  • 在采购和设计时,请确认料号与温度等级、包装形式及 RoHS/无铅要求一致,避免器件替代或批次差异影响生产。

五、可靠性与测试关注点

  • 环境温度范围 -40℃ 至 +85℃ 满足工业级运行需求,但在高温或潮湿环境下应验证整体系统的热管理与结露防护。
  • 连续的 ESD 冲击、浪涌或长时间高压工作的场景,应在系统层面对信号线和接地做额外的防护与降噪设计。
  • 推荐在量产前进行系统级的 EMC/ESD 测试,确保整机在目标应用场景下达到预期的鲁棒性。

六、总结

SP3221EEY-L/TR 以其单通道收发能力、内置电荷泵、工业级温度范围、低静态电流和高抗静电性能,为需要可靠 RS-232 串口接口且对功耗与空间敏感的嵌入式系统提供了一个平衡且实用的解决方案。在实际设计中,关注电荷泵电容布置、电源旁路与系统级 ESD 防护,可最大限度发挥该器件的性能和稳定性。若需更详细的引脚排列、电气参数和典型应用电路,请参考 MAXLINEAR 官方数据手册。

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