SN54LS139AJ TI Dual 2-to-4 Decoder/Demultiplexer | 16-CDIP | 4.75V-5.25V, -55°C to +125°C

Product Overview

The SN54LS139AJ is a high-performance dual 2-line to 4-line decoder/demultiplexer from Texas Instruments, designed for military and aerospace applications. Housed in a 16-pin ceramic dual-in-line package (CDIP), this device features two independent decoders, each accepting two binary inputs and providing four mutually exclusive active-low outputs. The SN54LS139AJ operates over the full military temperature range of -55°C to +125°C and is characterized for operation from 4.75V to 5.25V. Its low-power Schottky (LS) technology ensures high speed with minimal power consumption, making it ideal for memory decoding, data routing, and control logic in harsh environments.

Detailed Technical Specifications

Key Features

• Dual 2-line to 4-line decoder/demultiplexer in a single package
• Active-low outputs for easy interface with other logic families
• Low power consumption: 22 mW typical per decoder
• High speed: 18 ns typical propagation delay
• Wide operating temperature range: -55°C to +125°C
• Input clamp diodes to limit transmission-line effects
• Fully compatible with TTL and CMOS logic levels
• Hermetic ceramic package for high reliability

Target Applications

• Memory address decoding in 5G base station controllers
• Data routing in avionics display systems (e.g., cockpit dashboards)
• Control logic for satellite communication subsystems
• Industrial automation PLCs (Programmable Logic Controllers)
• Military radar signal processing units

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN54LS139AJ. 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

SN54LS139AJ 是德州儀器（TI）生產的高性能雙路2線至4線解碼器/多路分配器，專為軍用和航空航天應用設計。該器件採用16引腳陶瓷雙列直插封裝（CDIP），包含兩個獨立的解碼器，每個解碼器接受兩個二進制輸入，並提供四個互斥的低電平有效輸出。SN54LS139AJ 可在 -55°C 至 +125°C 的完整軍用溫度範圍內工作，並在 4.75V 至 5.25V 的電源電壓下保證性能。其低功耗肖特基（LS）技術確保了高速運行和低功耗，非常適合在惡劣環境中進行存儲器解碼、數據路由和控制邏輯應用。

詳細技術參數

核心特性

• 單一封裝內集成雙路2線至4線解碼器/多路分配器
• 低電平有效輸出，便於與其他邏輯系列接口
• 低功耗：每個解碼器典型功耗 22 mW
• 高速：典型傳播延遲 18 ns
• 寬工作溫度範圍：-55°C 至 +125°C
• 輸入鉗位二極管，限制傳輸線效應
• 完全兼容 TTL 和 CMOS 邏輯電平
• 密封陶瓷封裝，可靠性高

典型應用場景

• 5G 基站控制器中的存儲器地址解碼
• 航空電子顯示系統（如駕駛艙儀表板）中的數據路由
• 衛星通信子系統的控制邏輯
• 工業自動化 PLC（可編程邏輯控制器）
• 軍用雷達信號處理單元

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN54LS139AJ 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。
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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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• 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.
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