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Product Overview
The SN74LS42N is a 4-line to 10-line decoder/demultiplexer from Texas Instruments, part of the 74LS low-power Schottky family. It accepts a 4-bit binary input (A0–A3) and activates one of ten mutually exclusive outputs (Y0–Y9) corresponding to the input code. The device is designed for high-performance memory decoding, data routing, and digital system control applications. Housed in a 16-pin PDIP package, it offers reliable operation over a wide temperature range.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.75V to 5.25V |
| Input High Voltage (VIH) |
2.0V min |
| Input Low Voltage (VIL) |
0.8V max |
| High-Level Output Current (IOH) |
-0.4 mA |
| Low-Level Output Current (IOL) |
8 mA |
| Propagation Delay (tPLH/tPHL) |
30 ns max |
| Operating Temperature |
0°C to 70°C |
| Package |
16-PDIP |
Key Features
- 4-to-10 line decoder/demultiplexer
- Low power consumption (typical 30 mW)
- Schottky-clamped transistors for high speed
- Active low outputs for easy expansion
- Input clamp diodes limit ringing
- Fully compatible with TTL logic levels
Target Applications
- Memory address decoding in embedded systems (e.g., industrial controllers)
- Data routing in communication equipment (e.g., 5G base station control logic)
- Digital multiplexing in automotive dashboards
- BCD-to-decimal conversion in display drivers
- Function selection in programmable logic controllers (PLCs)
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74LS42N. 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
SN74LS42N 是德州儀器(TI)的一款 4 線轉 10 線解碼器/多路分配器,屬於 74LS 低功耗肖特基系列。它接收 4 位二進制輸入(A0–A3),並根據輸入碼啟動十個互斥輸出(Y0–Y9)中的一個。該器件專為高性能存儲器解碼、數據路由和數字系統控制應用而設計。採用 16 引腳 PDIP 封裝,可在寬溫度範圍內可靠工作。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
4.75V 至 5.25V |
| 輸入高電平 (VIH) |
最小值 2.0V |
| 輸入低電平 (VIL) |
最大值 0.8V |
| 高電平輸出電流 (IOH) |
-0.4 mA |
| 低電平輸出電流 (IOL) |
8 mA |
| 傳播延遲 (tPLH/tPHL) |
最大值 30 ns |
| 工作溫度 |
0°C 至 70°C |
| 封裝 |
16-PDIP |
核心特性
- 4 線轉 10 線解碼器/多路分配器
- 低功耗(典型值 30 mW)
- 肖特基箝位晶體管,實現高速
- 低電平有效輸出,便於擴展
- 輸入箝位二極管限制振鈴
- 完全兼容 TTL 邏輯電平
典型應用場景
- 嵌入式系統中的存儲器地址解碼(例如工業控制器)
- 通信設備中的數據路由(例如 5G 基站控制邏輯)
- 汽車儀表盤中的數字多路復用
- 顯示驅動器中的 BCD 轉十進制轉換
- 可編程邏輯控制器(PLC)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 SN74LS42N 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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