SN74LS257BNS TI Logic IC | Quad 2-Input Multiplexer | 3-State Outputs

Product Overview

The SN74LS257BNS from Texas Instruments is a high-performance quad 2-input multiplexer with 3-state outputs. It is designed for digital data selection and routing in a wide range of applications. The device features Schottky-clamped transistors for high speed and low power consumption, making it ideal for use in bus-oriented systems. Each of the four multiplexers selects one of two 4-bit data sources, controlled by a common Select input. The outputs are 3-state, allowing connection to a common bus.

Detailed Technical Specifications

Key Features

• Quad 2-input multiplexer with common select and strobe
• 3-state outputs for bus-oriented systems
• Schottky-clamped transistors for high speed
• Low power consumption: 20mW typ
• Input clamp diodes limit high-speed termination effects
• Direct interface with TTL logic levels

Target Applications

• Data routing in 5G base station control boards
• Signal selection in automotive dashboard displays
• Bus multiplexing in industrial PLC systems
• Memory address selection in embedded systems
• Digital signal switching in test equipment

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74LS257BNS. Our core advantages include:

• 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
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• BOM Kitting & Sampling Services: Specialized sourcing for testing samples and urgent shortage components.

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產品概述

SN74LS257BNS 是德州儀器（TI）生產的高性能四路2輸入多路復用器，具有三態輸出。該器件專為數字數據選擇和路由而設計，適用於多種應用。它採用肖特基箝位晶體管，具有高速和低功耗的特點，非常適合用於總線導向系統。每個多路復用器選擇兩個4位數據源之一，由公共選擇輸入控制。輸出為三態，可連接到公共總線。

詳細技術參數

核心特性

• 四路2輸入多路復用器，帶公共選擇和選通
• 三態輸出，適用於總線導向系統
• 肖特基箝位晶體管，實現高速
• 低功耗：典型值 20mW
• 輸入箝位二極管限制高速終端效應
• 直接與TTL邏輯電平接口

典型應用場景

• 5G基站控制板中的數據路由
• 汽車儀表盤顯示中的信號選擇
• 工業PLC系統中的總線多路復用
• 嵌入式系統中的存儲器地址選擇
• 測試設備中的數字信號切換

環球供應鏈與批發合作夥伴方案

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