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TC74AC541FT(EL) TC74AC541FT
Configuration
1 options
Configuration
22+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TOSHIBA TC74AC541FT(EL)
- Type
- TOSHIBA
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TOSHIBA
- Electronic Component
- TC74AC541FT(EL)
- Electronic Component
- 1
- Package
- TSSOP20
- Electronic Component
- Buffers / Drivers / Transceivers
- Electronic Component
- 74AC
- Electronic Component
- 0.265g
- Electronic Component
- 1
- Electronic Component
- 1
- Features
- Output
- Electronic Component
- BM0265592381
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 2V~5.5V
- Output Type
- Electronic Component
- Type
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
TC74AC541FT(EL) 产品概述
一、产品简介
TC74AC541FT(EL) 是东芝（TOSHIBA）生产的 74AC 系列 CMOS 八路缓冲/线驱动器，具有三态（Tri‑State）输出功能。器件为单向通道设计，包含 1 个元件、8 位并行输出，适用于需要高速、低功耗且可总线隔离的数字电路场合。
二、主要特性
- 工作电源电压：2.0 V ～ 5.5 V（宽电源范围，便于与不同逻辑电平系统配合）
- 输出类型：三态控制，便于总线共享与多设备连接
- 输出驱动能力：IOH = 24 mA（上拉），IOL = 24 mA（下拉），具备良好驱动能力
- 静态电流：Iq ≈ 80 μA（静态）— 低功耗优势明显
- 传播延迟：tpd = 4.7 ns @ VCC=5 V, CL=50 pF（高速响应，适合中高频数字信号）
- 通道类型：单向（输入→输出），8 位并行结构
- 工作温度范围：-40 ℃ ～ +85 ℃
三、电气性能与工作条件
- 推荐工作电压：2.0–5.5 V；在不同 VCC 下性能（延迟、电流）会有所变化，请参照东芝数据手册进行精确设计。
- 典型负载条件下的上、下拉电流均可达 24 mA，适合驱动较大容性或小型负载。
- 三态使能需外部控制，三态输出在高阻态时对总线几乎无影响，但建议对浮置线进行上/下拉设计以避免噪声。
四、封装与标识
- 封装形式：TSSOP20（细间距小型封装，利于高密度布局）
- 标识：器件名称 TC74AC541FT，后缀 (EL) 通常为厂商包装或版本后缀，请以东芝官方数据手册或出厂标签为准。
五、典型应用
- 多主机总线缓冲与总线隔离
- FPGA/MCU 与外设的电平缓冲与驱动
- 时钟分配、信号整形、并行数据总线驱动
- 需高速切换且可插拔/共享总线的系统
六、设计与布局建议
- 在 VCC 与 GND 近端放置 0.1 μF 去耦电容，降低电源瞬态噪声和发射。
- 输出端若可能处于高阻态，建议使用合适的上/下拉电阻以确定总线电平。
- 考虑输出驱动能力与线长、电容负载，避免过大容性负载以减少延迟与反射问题。
- PCB 布局上注意走线对称、短而粗的电源回流路径以提高信号完整性。
七、注意事项与可靠性
- 在高频与大负载条件下，器件发热与电源抖动可能增加，需评估热设计与电源裕量。
- 三态输出在切换瞬间可能引起总线短暂冲突，应在系统设计中避免多个驱动器同时在有效输出状态。
- 详细引脚功能、时序与绝对最大额定值请参照东芝官方数据手册以保证可靠使用。
如需更详细的电气特性曲线、引脚定义或参考电路图，我可以根据东芝数据手册帮助提取并说明关键参数与布局示例。
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