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Product Overview
The SN74AHCT139N is a dual 2-to-4 line decoder/demultiplexer from Texas Instruments, designed for high-speed CMOS logic applications. It operates with a supply voltage range of 4.5V to 5.5V, making it compatible with TTL logic levels. The device features two independent decoders, each with active-low enables and outputs. Housed in a 16-pin PDIP package, it is ideal for memory decoding, data routing, and general-purpose logic functions in industrial and consumer electronics.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.5V to 5.5V |
| High-Level Input Voltage (VIH) |
2V (min) |
| Low-Level Input Voltage (VIL) |
0.8V (max) |
| High-Level Output Current (IOH) |
-8 mA |
| Low-Level Output Current (IOL) |
8 mA |
| Propagation Delay (tpd) |
7.5 ns (typ) at 5V, 50pF |
| Operating Temperature |
-40°C to +85°C |
| Package |
16-PDIP |
Key Features
- Dual 2-to-4 line decoder/demultiplexer
- Active-low enables and outputs
- TTL-compatible inputs
- Low power consumption (ICC max 4 µA)
- High noise immunity
- ESD protection exceeds 2000V per MIL-STD-883
Target Applications
- Memory address decoding in 5G base stations (e.g., for FPGA configuration)
- Data routing in automotive dashboard displays
- Industrial control systems (e.g., PLC I/O expansion)
- Consumer electronics (e.g., smart home hubs)
- Test and measurement equipment
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74AHCT139N. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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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.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
SN74AHCT139N 是德州儀器推出的雙路2線至4線解碼器/多路分配器,適用於高速CMOS邏輯應用。其工作電壓範圍為4.5V至5.5V,兼容TTL邏輯電平。器件包含兩個獨立的解碼器,每個均帶有低電平有效的使能端和輸出端。採用16引腳PDIP封裝,非常適合存儲器解碼、數據路由以及工業和消費電子中的通用邏輯功能。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
4.5V 至 5.5V |
| 高電平輸入電壓 (VIH) |
2V (最小值) |
| 低電平輸入電壓 (VIL) |
0.8V (最大值) |
| 高電平輸出電流 (IOH) |
-8 mA |
| 低電平輸出電流 (IOL) |
8 mA |
| 傳播延遲 (tpd) |
7.5 ns (典型值) 在5V, 50pF |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
16-PDIP |
核心特性
- 雙路2線至4線解碼器/多路分配器
- 低電平有效的使能端和輸出端
- TTL兼容輸入
- 低功耗 (ICC 最大值 4 µA)
- 高抗噪性
- ESD保護超過2000V (符合MIL-STD-883)
典型應用場景
- 5G基站中的存儲器地址解碼(例如FPGA配置)
- 汽車儀表盤顯示中的數據路由
- 工業控制系統(例如PLC I/O擴展)
- 消費電子(例如智能家居中樞)
- 測試與測量設備
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 SN74AHCT139N 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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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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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。
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