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Product Overview
The 74ACT11257DBR from Texas Instruments is a high-performance 4-channel, 2-input multiplexer with 3-state outputs, designed for 5V operation. Housed in a compact 20-SSOP package, it offers low power consumption and high speed, making it ideal for data routing and signal selection in digital systems.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.5V to 5.5V |
| Input Voltage (VI) |
0V to VCC |
| Output Voltage (VO) |
0V to VCC |
| High-Level Input Voltage (VIH) |
2.0V min |
| Low-Level Input Voltage (VIL) |
0.8V max |
| High-Level Output Current (IOH) |
-24 mA |
| Low-Level Output Current (IOL) |
24 mA |
| Propagation Delay (tpd) |
6.5 ns typ at 5V, 50pF |
| Operating Temperature |
-40°C to +85°C |
| Package |
20-SSOP |
Key Features
- 4-channel, 2-input multiplexer with common select and enable
- 3-state outputs for bus-oriented applications
- Low power consumption: ICC 4 μA max
- High speed: tpd 6.5 ns typ at 5V
- Inputs accept voltages up to 5.5V
- ESD protection exceeds 2000V per MIL-STD-883, Method 3015
Target Applications
- 5G base station control logic: signal routing for beamforming modules
- Automotive dashboard display: selecting sensor data for instrument cluster
- Industrial automation: multiplexing analog/digital signals in PLCs
- Data communication: switching between redundant data paths
Global Supply Chain & Wholesale Solutions
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74ACT11257DBR. Our core advantages include:
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
74ACT11257DBR 是德州儀器推出的高性能4通道2輸入多路復用器,具有三態輸出,專為5V操作設計。採用緊湊的20-SSOP封裝,功耗低、速度高,非常適合數字系統中的數據路由和信號選擇。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
4.5V 至 5.5V |
| 輸入電壓 (VI) |
0V 至 VCC |
| 輸出電壓 (VO) |
0V 至 VCC |
| 高電平輸入電壓 (VIH) |
最小值 2.0V |
| 低電平輸入電壓 (VIL) |
最大值 0.8V |
| 高電平輸出電流 (IOH) |
-24 mA |
| 低電平輸出電流 (IOL) |
24 mA |
| 傳播延遲 (tpd) |
典型值 6.5 ns (5V, 50pF) |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
20-SSOP |
核心特性
- 4通道2輸入多路復用器,帶公共選擇和使能
- 三態輸出,適用於總線應用
- 低功耗:ICC 最大值 4 μA
- 高速:tpd 典型值 6.5 ns (5V)
- 輸入可接受高達5.5V電壓
- ESD保護超過2000V (MIL-STD-883, Method 3015)
典型應用場景
- 5G基站控制邏輯:波束成形模塊的信號路由
- 汽車儀表盤顯示:選擇傳感器數據用於儀表組
- 工業自動化:PLC中模擬/數字信號的多路復用
- 數據通信:冗餘數據路徑之間的切換
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