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XINLUDA XD74LS147
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- XINLUDA XD74LS147
- Type
- XINLUDA
- Minimum package
- 1000 管装
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- XINLUDA
- Electronic Component
- XD74LS147
- Electronic Component
- 1
- Package
- DIP-16
- Type
- Encoder
- Electronic Component
- Signal Switch / Codec / Multiplexer
- Electronic Component
- 1.72g
- Electronic Component
- 1
- Electronic Component
- BM0228586570
- Operating Temperature
- 0℃~70℃
- Operating Voltage
- 4.75V~5.25V
- Power Supply
- Power Supply
- Current(IOH)
- 400mA
- Current(IOL)
- 8mA
- Static Current(Iq)
- 62mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
XD74LS147 概述
XD74LS147 是信路达（XINLUDA）推出的一款 9 输入至 4 输出的编码器器件，采用传统 TTL 逻辑工艺并封装为 DIP-16。器件适用于需要将多路并行输入编码为二进制输出的场合，具有工作电压范围窄、传输延迟短的特点，适合嵌入式系统、键盘扫描与优先级选择电路等应用。
一、主要特性
- 类型：编码器（9 输入 / 4 输出）
- 工作电压：4.75 V ~ 5.25 V（标准 5V TTL 供电）
- 输出能力：灌电流 IOL = 8 mA；拉电流 IOH = 400 mA（按厂家规格）
- 工作温度：0 ℃ ~ 70 ℃
- 传播延迟：tpd = 18 ns（VCC = 5V，CL = 15 pF）
- 封装：DIP-16（便于面包板和插座安装）
- 品牌：XINLUDA（信路达）
二、典型应用场景
- 多路输入至二进制输出的地址/数据压缩
- 键盘或开关矩阵的优先编码与简化处理
- 中断管理与优先级检测电路
- 数字选择器、状态汇总与故障指示器件的信号编码
三、电气特性要点
XD74LS147 在标准 5V 供电下工作，传播延迟在 18 ns 级别，适合中高速数字系统。输出驱动能力注明了灌/拉电流值，设计时应注意每一路输出的负载不应超过器件允许的驱动能力，避免长期过载。实际设计中，接口到后级 CMOS/TTL 器件时，应关注电平兼容性及输入电容（CL），以免显著增加总延迟或造成边沿失真。
四、封装与机械信息
器件提供 DIP-16 插针封装，便于快速原型开发与插板固定。焊接或插装时建议留意散热与空间布置，尽量避免与高功率元件邻近以减少温升对性能的影响。
五、使用建议
- 供电与去耦：建议在器件 VCC 与 GND 之间并联 0.1 μF 陶瓷去耦电容，靠近引脚放置以抑制高速瞬态噪声。
- 信号连线：输入端线长尽量短，必要时加缓冲或滤波以提高抗干扰能力；输出驱动大容性负载会增加传播延迟，应评估负载电容对系统时序的影响。
- 电流限制：设计 PCB 与负载时，应保证单个输出及芯片总体电流不超过器件规格，必要时采用外部三极管或缓冲器分担驱动。
- 温度与可靠性：工作温度范围为 0–70 ℃，如用于更严苛环境需评估器件可靠性或选择工业级替代件。
- 数据手册：在进行系统级设计与引脚连接前，请参考详细数据手册确认输入/输出的极性（高/低有效）、内部优先级规则及引脚定义。
六、采购与注意事项
XD74LS147（信路达）DIP-16 封装适合教学、开发和中低量产项目。采购时请确认供应商提供的完整规格书与检验报告，注意同系列或兼容器件在逻辑极性、优先级实现或驱动能力上的差异，以避免因替换器件导致功能异常。
总体而言，XD74LS147 是一款结构简单、易于使用的 9:4 编码器，适合对速度和功耗要求中等的数字系统；合理布线、去耦与负载匹配可确保其在实际电路中稳定可靠运行。
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