SN74LS139ANSR TI Decoder/Demultiplexer | 16-SO | Dual 2-to-4, Active Low Outputs

Product Overview

The SN74LS139ANSR is a dual 2-line to 4-line decoder/demultiplexer from Texas Instruments, designed for high-performance memory decoding and data routing applications. Each decoder has two active-low enable inputs and four active-low outputs. The device is fabricated using Schottky barrier diode technology for improved speed and power dissipation. Housed in a 16-pin SO package, it is ideal for space-constrained designs requiring reliable logic decoding.

Detailed Technical Specifications

Key Features

• Dual 2-line to 4-line decoder/demultiplexer
• Active-low outputs for direct interface with memory chips
• Two active-low enable inputs per decoder for flexible control
• Schottky-clamped transistors for high speed
• Low power consumption: 22 mW typical per gate
• Wide operating voltage range: 4.75 V to 5.25 V
• Standard 16-pin SOIC package for easy PCB integration
• Compatible with TTL logic levels

Target Applications

• Memory address decoding in 5G base station control boards
• Data routing in automotive dashboard display systems
• Demultiplexing in industrial PLC I/O modules
• Code conversion in networking equipment
• Function selection in consumer electronics like smart home hubs

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74LS139ANSR. 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

SN74LS139ANSR 是德州儀器（TI）推出的雙路2線至4線解碼器/多路分配器，專為高性能存儲器解碼和數據路由應用設計。每個解碼器具有兩個低電平有效的使能輸入和四個低電平有效的輸出。該器件採用肖特基勢壘二極管技術，提高了速度和功耗性能。採用16引腳SO封裝，非常適合需要可靠邏輯解碼的空間受限設計。

詳細技術參數

核心特性

• 雙路2線至4線解碼器/多路分配器
• 低電平有效輸出，可直接與存儲器芯片接口
• 每個解碼器有兩個低電平有效使能輸入，實現靈活控制
• 肖特基鉗位晶體管，實現高速操作
• 低功耗：典型每門22 mW
• 寬工作電壓範圍：4.75 V 至 5.25 V
• 標準16引腳SOIC封裝，易於PCB集成
• 兼容TTL邏輯電平

典型應用場景

• 5G基站控制板中的存儲器地址解碼
• 汽車儀表盤顯示系統中的數據路由
• 工業PLC I/O模塊中的多路分配
• 網絡設備中的代碼轉換
• 消費電子產品（如智能家居中心）中的功能選擇

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74LS139ANSR 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。
• 深港聯動，結算靈活：深圳直發全球，物流高效可靠；支援香港銀行戶口轉賬及多幣種結算。
• 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。
• 符合 RoHS 認證：所有電子元器件均符合國際環保標準及相關安全認證。
• 原廠封裝保護：嚴格保留原廠原始包裝及封條，確保物流過程中的靜電防護 (ESD) 與物理安全。

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]