SN74ALS139D TI Decoder/Demultiplexer | 16-SOIC | Dual 2-to-4, 4.5-5.5V

Product Overview

The SN74ALS139D is a dual 2-line to 4-line decoder/demultiplexer from Texas Instruments, designed for high-performance memory decoding and data routing applications. Housed in a compact 16-SOIC package, this device operates over a supply voltage range of 4.5V to 5.5V, making it ideal for 5V logic systems. Each decoder section features active-low outputs and two enable inputs (one active-low, one active-high) for flexible control. The SN74ALS139D utilizes advanced Schottky-clamped bipolar technology to achieve high speed and low power consumption, with typical propagation delays of 6ns and power dissipation of 22mW per gate.

Detailed Technical Specifications

Key Features

• Dual 2-line to 4-line decoder/demultiplexer
• Active-low outputs for direct interface with memory chips
• Two enable inputs per decoder (one active-low, one active-high)
• Schottky-clamped bipolar technology for high speed
• Low power consumption: 22mW per gate
• Wide operating voltage range: 4.5V to 5.5V
• Input clamp diodes limit overshoot
• Standard 16-SOIC package for space-constrained designs

Target Applications

• Memory decoding in 5G base stations (e.g., decoding address lines for SRAM banks)
• Data routing in automotive dashboard controllers (e.g., selecting sensor inputs)
• Industrial PLC I/O expansion modules
• Telecommunications switching equipment
• Test and measurement instruments

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74ALS139D. 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

SN74ALS139D 是德州儀器推出的雙路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而設計。該器件採用緊湊的16-SOIC封裝，工作電源電壓範圍為4.5V至5.5V，非常適合5V邏輯系統。每個解碼器部分具有低電平有效輸出和兩個使能輸入（一個低電平有效，一個高電平有效），以實現靈活控制。SN74ALS139D 採用先進的肖特基箝位雙極技術，實現高速和低功耗，典型傳播延遲為6ns，每門功耗為22mW。

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
• 每個解碼器有兩個使能輸入（一個低電平有效，一個高電平有效）
• 肖特基箝位雙極技術，實現高速
• 低功耗：每門22mW
• 寬工作電壓範圍：4.5V 至 5.5V
• 輸入箝位二極管限制過沖
• 標準16-SOIC封裝，適合空間受限設計

典型應用場景

• 5G基站中的存儲器解碼（例如，解碼SRAM組的地址線）
• 汽車儀表板控制器中的數據路由（例如，選擇傳感器輸入）
• 工業PLC I/O擴展模塊
• 電信交換設備
• 測試與測量儀器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74ALS139D 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]