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Product Overview
The SN74HC139NSR is a high-speed dual 2-to-4 line decoder/demultiplexer from Texas Instruments, housed in a 16-pin SOIC package. It is designed for use in digital systems 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). It operates over a wide supply voltage range of 2V to 6V, making it suitable for battery-powered and industrial applications.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
2V to 6V |
| High-Level Input Voltage (VIH) |
3.15V (min) at VCC=4.5V |
| Low-Level Input Voltage (VIL) |
1.35V (max) at VCC=4.5V |
| High-Level Output Current (IOH) |
-4 mA (max) at VCC=4.5V |
| Low-Level Output Current (IOL) |
4 mA (max) at VCC=4.5V |
| Propagation Delay (tpd) |
23 ns (typ) at VCC=4.5V, CL=50pF |
| Input Capacitance |
3 pF (typ) |
| Operating Temperature |
-40°C to +85°C |
| Package |
16-SOIC (NSR) |
Key Features
- Dual 2-to-4 line decoder/demultiplexer
- Wide operating voltage range: 2V to 6V
- Low power consumption: ICC of 80 µA (max) at 25°C
- High noise immunity: typical VNH = 28% of VCC
- Balanced propagation delays
- Inputs accept voltages up to 6V
- Outputs can drive up to 10 LSTTL loads
- Available in SOIC-16 package for space-saving designs
Target Applications
- 5G base station control logic: decoding address lines for RF module selection
- Automotive dashboard display: demultiplexing sensor data for segment drivers
- Industrial PLC I/O expansion: selecting peripheral modules via address decoding
- Consumer electronics: remote control receiver decoding
- Memory address decoding in microcontroller systems
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74HC139NSR. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
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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
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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
SN74HC139NSR 是德州儀器(TI)推出的高速雙路2線至4線解碼器/多路分配器,採用16引腳SOIC封裝。該器件適用於需要低功耗和高抗噪能力的數字系統。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)。工作電源電壓範圍為2V至6V,適合電池供電和工業應用。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
2V 至 6V |
| 高電平輸入電壓 (VIH) |
3.15V (最小值) 在 VCC=4.5V 時 |
| 低電平輸入電壓 (VIL) |
1.35V (最大值) 在 VCC=4.5V 時 |
| 高電平輸出電流 (IOH) |
-4 mA (最大值) 在 VCC=4.5V 時 |
| 低電平輸出電流 (IOL) |
4 mA (最大值) 在 VCC=4.5V 時 |
| 傳播延遲 (tpd) |
23 ns (典型值) 在 VCC=4.5V, CL=50pF 時 |
| 輸入電容 |
3 pF (典型值) |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
16-SOIC (NSR) |
核心特性
- 雙路2線至4線解碼器/多路分配器
- 寬工作電壓範圍:2V 至 6V
- 低功耗:ICC 最大 80 µA(25°C 時)
- 高抗噪能力:典型 VNH = 28% VCC
- 平衡的傳播延遲
- 輸入可承受高達 6V 的電壓
- 輸出可驅動多達 10 個 LSTTL 負載
- 採用 SOIC-16 封裝,節省空間
典型應用場景
- 5G基站控制邏輯:解碼地址線以選擇射頻模塊
- 汽車儀表盤顯示:對傳感器數據進行多路分配以驅動段碼
- 工業PLC I/O擴展:通過地址解碼選擇外設模塊
- 消費電子:遙控接收器解碼
- 微控制器系統中的存儲器地址解碼
環球供應鏈與批發合作夥伴方案
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