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Product Overview
The SN74LS640-1DW is a high-performance octal bus transceiver from Texas Instruments, designed for bidirectional asynchronous communication between data buses. It features inverting outputs and 3-state outputs for bus-oriented applications. Housed in a 20-pin SOIC package, this device operates from a 5V supply and is characterized for operation from 0°C to 70°C. The 'LS' family ensures low power consumption while maintaining high speed, making it suitable for a wide range of digital systems.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.75V to 5.25V |
| Input Voltage (VI) |
0V to 5.5V |
| Output Voltage (VO) |
0V to 5.5V |
| High-Level Output Current (IOH) |
-15 mA |
| Low-Level Output Current (IOL) |
24 mA |
| Propagation Delay (tpd) |
12 ns (typical) |
| Operating Temperature |
0°C to 70°C |
| Package |
20-SOIC |
Key Features
- 8-bit bidirectional bus transceiver with inverting outputs
- 3-state outputs for bus isolation
- Low power consumption: 45 mW typical
- High speed: propagation delay 12 ns typical
- Inputs and outputs are compatible with TTL logic levels
- Package: 20-pin SOIC (DW) for surface mount
Target Applications
- Data communication in 5G base stations (e.g., backplane bus interface)
- Automotive dashboard display systems (e.g., instrument cluster data bus)
- Industrial control systems (e.g., PLC I/O modules)
- Telecommunications equipment (e.g., line card interface)
- General-purpose digital systems requiring bidirectional data transfer
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74LS640-1DW. 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
SN74LS640-1DW 是德州儀器(TI)生產的高性能八路雙向總線收發器,專為數據總線之間的雙向異步通信而設計。它具有反相輸出和三態輸出,適用於總線應用。該器件採用 20 引腳 SOIC 封裝,工作電壓為 5V,工作溫度範圍為 0°C 至 70°C。'LS' 系列在保持高速的同時實現低功耗,適用於各種數字系統。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
4.75V 至 5.25V |
| 輸入電壓 (VI) |
0V 至 5.5V |
| 輸出電壓 (VO) |
0V 至 5.5V |
| 高電平輸出電流 (IOH) |
-15 mA |
| 低電平輸出電流 (IOL) |
24 mA |
| 傳播延遲 (tpd) |
12 ns(典型值) |
| 工作溫度 |
0°C 至 70°C |
| 封裝 |
20-SOIC |
核心特性
- 8 位雙向總線收發器,帶反相輸出
- 三態輸出,實現總線隔離
- 低功耗:典型值 45 mW
- 高速:傳播延遲典型值 12 ns
- 輸入和輸出與 TTL 邏輯電平兼容
- 封裝:20 引腳 SOIC (DW),適用於表面貼裝
典型應用場景
- 5G 基站中的數據通信(例如背板總線接口)
- 汽車儀表盤顯示系統(例如儀表組數據總線)
- 工業控制系統(例如 PLC I/O 模塊)
- 電信設備(例如線路卡接口)
- 需要雙向數據傳輸的通用數字系統
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 SN74LS640-1DW 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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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。
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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。
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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。
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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。
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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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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
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