WMSIC Electronic Components

MSKSEMI SP3232EEY-MS SP3232EEY

ModelSP3232EEY-MS
PackageTSSOP-16
BrandMSKSEMI
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
MSKSEMI SP3232EEY-MS
Type
MSKSEMI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MSKSEMI
Electronic Component
SP3232EEY-MS
Electronic Component
1
Package
TSSOP-16
Type
Transceiver
Electronic Component
RS232IC
Electronic Component
0.166g
Electronic Component
1
Features
Electronic Component
Electronic Component
BM0225765435
Operating Temperature
40℃~+85℃
Operating Voltage
3V~5.5V
Receiver
2
Data
120Kbps
Static Current
2mA

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

SP3232EEY-MS 产品概述

一、产品概述

SP3232EEY-MS 是 MSKSEMI(美森科)提供的一款双通道收发器,专为 MCU/微控制器与串行 RS-232 设备之间的电平转换而设计。器件集成电荷泵,可在单一 3.0V 到 5.5V 的电源下工作,支持最高约 120 Kbps 的数据速率,工作温度覆盖工业级 -40℃ 到 +85℃。器件提供 2 个驱动器与 2 个接收器,包装形式为 TSSOP-16,并具备高达 ±15 kV 的静电放电(ESD)保护能力。

二、主要特性

  • 工作电压:3.0V ~ 5.5V,适配 3.3V 和 5V 系统。
  • 数据速率:最高约 120 Kbps,满足典型串口通信需求。
  • 电荷泵:内置电荷泵,能在低电压供电下生成所需 RS-232 电平。
  • 通道数:2 路驱动器(TX) + 2 路接收器(RX)。
  • 静态电流(工作态或空闲态):约 2 mA(低功耗特性,有利于系统节能)。
  • ESD 保护:±15 kV(人体模型),提升系统可靠性。
  • 封装:TSSOP-16,便于 PCB 密集布板与自动贴装。

三、功能与工作原理

SP3232EEY-MS 将 MCU 的 TTL/CMOS 逻辑电平转换为符合 RS-232 要求的差分电压,并将来自 RS-232 总线的电平转换回 MCU 可识别的逻辑电平。内部电荷泵利用外接电容(常见配置为四个电荷泵电容)在单电源条件下生成所需的正、负电压,从而无需额外的 ± 电源即可驱动 RS-232 线路。

四、典型应用场景

  • 工业控制与自动化设备的串口通信(PLC、人机界面等)。
  • 仪器仪表、数据采集模块的 RS-232 接口。
  • POS 机、条码扫描器和嵌入式终端的串口扩展。
  • 需要电平转换且工作温度要求较高的消费与工业应用。

五、封装与外围设计要点

  • 封装为 TSSOP-16,推荐在布局时将器件靠近 MCU 串口引脚放置以缩短走线。
  • 电荷泵需外接电容(建议使用低等效串联电阻的陶瓷电容);常见的配置为四个 0.1 µF 电容,分别连接到电荷泵的 C1+/C1-、C2+/C2- 以及 V+、V- 节点。
  • 在 VCC 引脚旁应并联 0.1 µF 陶瓷去耦电容,并靠近器件引脚布局以抑制瞬态噪声。
  • 考虑到 ESD 保护,外部信号线尽量布置保护器件或滤波网络(如差分阻尼或共模扼流圈)以提高系统抗扰能力。

六、设计注意事项

  • 数据速率受线长、布线阻抗和接收端输入特性影响;在接近最高速率时建议做实际链路验测。
  • 工作温度为 -40℃ ~ +85℃,符合一般工业级要求;若需更高温度保障,应选择更高温度等级器件。
  • 静态电流 2 mA 表示器件在工作状态下的静态消耗相对较低,但在电池供电场合仍需评估总体能耗。
  • 布线时注意 RS-232 端口应尽量远离高速数字线与开关电源噪声源,避免信号完整性问题。

七、优势总结

SP3232EEY-MS 以其内置电荷泵、宽电源电压范围、低静态电流以及工业级工作温度和高 ESD 抗扰能力,为需要可靠 RS-232 通信接口的嵌入式与工业系统提供了简单且成本效益高的解决方案。其 TSSOP-16 封装利于高密度 PCB 设计,适合多种串口拓展与系统集成场景。

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