SN74HC139AN TI Decoder/Demultiplexer | 16-PDIP | Dual 2-to-4 Line, 2V-6V

Product Overview

The SN74HC139AN from Texas Instruments is a high-speed dual 2-to-4 line decoder/demultiplexer fabricated using advanced silicon-gate CMOS technology. It is designed for applications requiring low power consumption and high noise immunity. The device features two independent decoders, each accepting two binary inputs (A0, A1) and providing four mutually exclusive active-low outputs (Y0–Y3). Each decoder also has an active-low enable input (G). When the enable input is high, all outputs are forced high regardless of the input states. The SN74HC139AN is offered in a 16-pin plastic DIP package (16-PDIP) and operates over a wide supply voltage range of 2V to 6V, making it suitable for interfacing with TTL logic levels.

Detailed Technical Specifications

Key Features

• Dual 2-to-4 line decoder/demultiplexer with active-low outputs
• Separate enable inputs for each decoder
• Wide operating voltage range: 2V to 6V
• High noise immunity: typical VNIH = VNIL = 28% of VCC
• Low power consumption: typical ICC of 4µA (max) at VCC=6V
• Compatible with TTL logic levels
• Output drive capability: 4mA at 4.5V
• ESD protection exceeds 2000V per MIL-STD-883, Method 3015
• Available in 16-PDIP package for through-hole mounting

Target Applications

The SN74HC139AN is ideal for use in a variety of digital systems requiring address decoding, data routing, or signal demultiplexing. Specific applications include:

• Memory address decoding in microcontroller-based systems (e.g., Arduino, Raspberry Pi)
• Control logic in 5G base station equipment for channel selection
• Display driver selection in automotive dashboard clusters
• Input/output expansion in industrial PLCs
• Data bus demultiplexing in networking switches
• Function selection in test and measurement instruments

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74HC139AN. 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

SN74HC139AN 是德州儀器 (TI) 推出的一款高速雙路 2 線至 4 線解碼器/多路分配器，採用先進的硅柵 CMOS 技術製造。該器件專為需要低功耗和高抗噪聲能力的應用而設計。它包含兩個獨立的解碼器，每個解碼器接受兩個二進制輸入 (A0, A1) 並提供四個互斥的低電平有效輸出 (Y0–Y3)。每個解碼器還有一個低電平有效的使能輸入 (G)。當使能輸入為高電平時，無論輸入狀態如何，所有輸出均被強制為高電平。SN74HC139AN 採用 16 引腳塑料 DIP 封裝 (16-PDIP)，工作電源電壓範圍為 2V 至 6V，適合與 TTL 邏輯電平接口。

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
• 每個解碼器有獨立的使能輸入
• 寬工作電壓範圍：2V 至 6V
• 高抗噪聲能力：典型 VNIH = VNIL = 28% VCC
• 低功耗：VCC=6V 時典型 ICC 為 4µA（最大值）
• 與 TTL 邏輯電平兼容
• 輸出驅動能力：4.5V 時 4mA
• ESD 保護超過 2000V（符合 MIL-STD-883 方法 3015）
• 採用 16-PDIP 封裝，適合通孔安裝

典型應用場景

SN74HC139AN 適用於需要地址解碼、數據路由或信號多路分配的各種數字系統。具體應用包括：

• 微控制器系統（如 Arduino、Raspberry Pi）中的存儲器地址解碼
• 5G 基站設備中的通道選擇控制邏輯
• 汽車儀表盤集群中的顯示驅動器選擇
• 工業 PLC 中的輸入/輸出擴展
• 網絡交換機中的數據總線多路分配
• 測試與測量儀器中的功能選擇

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74HC139AN 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]