SN74ALS257AN TI Quad 2-to-1 Data Selector/Multiplexer | 16-PDIP | 4.5V-5.5V, 3-State Outputs

Product Overview

The SN74ALS257AN is a quad 2-to-1 data selector/multiplexer from Texas Instruments, designed for high-speed digital systems. It features four independent multiplexers with common select (S) and output enable (OE) inputs. Each multiplexer selects data from two inputs (A or B) based on the select input. The 3-state outputs allow connection to bus-organized systems. Housed in a 16-pin PDIP package, it operates over a supply voltage range of 4.5V to 5.5V, making it ideal for TTL logic applications.

Detailed Technical Specifications

Key Features

• Quad 2-to-1 multiplexer with common select and enable
• 3-state outputs for bus-oriented applications
• High speed: typical propagation delay of 10 ns
• Low power consumption: 20 mW (typ) per gate
• Input clamp diodes for line termination
• Compatible with TTL and CMOS 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 multiplexing in embedded systems
• General-purpose logic in telecom equipment

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74ALS257AN. Our core advantages include:

• 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
• In-stock Inventory, Same-day Shipping: We maintain localized stock; orders confirmed before 4 PM are shipped the same day.
• HK-SZ Synergy, Flexible Settlement: Direct global shipping from Shenzhen with support for HK bank transfers and multi-currency.
• Escrow Secured Transactions: We support Escrow.com for secure transactions, ensuring peace of mind for batch orders.
• BOM Kitting & Sampling Services: Specialized sourcing for testing samples and urgent shortage components.

Quality Assurance & Compliance

Jasin Chip guarantees that all delivered products are 100% original factory stock with full quality assurance and traceability.

• 100% Original & Authentic: All components are guaranteed to be authentic with strict quality control.
• RoHS Compliant: All electronic components comply with international environmental and safety standards.
• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

SN74ALS257AN 是德州儀器生產的四路2選1數據選擇器/多路復用器，專為高速數字系統設計。它包含四個獨立的多路復用器，共用選擇輸入（S）和輸出使能輸入（OE）。每個多路復用器根據選擇輸入從兩個輸入（A或B）中選擇數據。三態輸出允許連接到總線組織的系統。採用16引腳PDIP封裝，工作電源電壓範圍為4.5V至5.5V，非常適合TTL邏輯應用。

詳細技術參數

核心特性

• 四路2選1多路復用器，共用選擇和使能
• 三態輸出，適用於總線應用
• 高速：典型傳播延遲10 ns
• 低功耗：每個門典型功耗20 mW
• 輸入箝位二極管，用於線路終端
• 兼容TTL和CMOS邏輯電平

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多路復用
• 電信設備中的通用邏輯

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74ALS257AN 提供全面的供應鏈與批發解決方案。 我們的核心優勢包括：

• 全天候環球客戶支援：專業團隊為您提供即時報價及技術支援，無需漫長等待。
• 現貨庫存，即日發貨：確保現貨充足。下午 4 點前確認訂單，即可安排當天寄出。
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• Escrow 擔保交易：支援 Escrow.com 平台交易，保障買賣雙方權益，小批量訂單亦可安心在線下單。
• BOM 配單與樣板服務：提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。

品質保證與合規

Jasin Chip 承諾所有出貨產品均為原廠正貨，具備完善的品質保證及產品可追溯性。

• 100% 原廠正貨：承諾所有供應零件均為原裝現貨，品質嚴格把關，來源清晰可追溯。
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以上產品均為原廠正貨，提供 BOM 配單及現貨庫存支援，歡迎查詢。

HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]