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Product Overview
The SN74LS641-1DW is a high-performance octal bus transceiver from Texas Instruments, designed for bidirectional asynchronous communication between data buses. It features 8-bit inverting 3-state outputs, making it ideal for bus-oriented systems. Housed in a 20-pin SOIC package, this device operates from a 5V supply and offers high-speed propagation delays with low power consumption. The 'LS' family ensures compatibility with TTL logic levels, while the -1 suffix indicates enhanced drive capability.
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 |
| Output High Voltage (VOH) |
2.7V min (IOH = -400µA) |
| Output Low Voltage (VOL) |
0.5V max (IOL = 8mA) |
| Propagation Delay (tPLH/tPHL) |
12 ns typ (A to B or B to A) |
| Output Enable Time (tPZH/tPZL) |
18 ns typ |
| Output Disable Time (tPHZ/tPLZ) |
15 ns typ |
| Operating Temperature |
0°C to 70°C |
| Package |
20-SOIC (DW) |
Key Features
- 8-bit bidirectional bus transceiver with inverting 3-state outputs
- High-speed propagation delay: 12 ns typical
- Low power consumption: 50 mW typical per channel
- TTL input and output compatibility
- Output sink current: 8 mA
- Output source current: -400 µA
- Separate output enable (G) and direction control (DIR) pins
- Package: 20-pin SOIC (DW) for space-saving designs
Target Applications
- 5G base station control logic: data bus isolation and buffering between baseband and RF modules
- Automotive dashboard display: communication between microcontroller and display driver
- Industrial PLC: bidirectional data transfer between CPU and I/O modules
- Telecommunications: backplane bus transceiver for line cards
- Medical equipment: data bus interface in patient monitoring systems
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74LS641-1DW. 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
SN74LS641-1DW 是德州儀器生產的高性能八路雙向匯流排收發器,專為數據匯流排之間的雙向異步通信而設計。它具有8位反相三態輸出,非常適合匯流排導向系統。該器件採用20引腳SOIC封裝,工作電壓為5V,提供高速傳播延遲和低功耗。'LS'系列確保與TTL邏輯電平兼容,而-1後綴表示增強驅動能力。
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 |
| 輸出高電平 (VOH) |
最小值 2.7V (IOH = -400µA) |
| 輸出低電平 (VOL) |
最大值 0.5V (IOL = 8mA) |
| 傳播延遲 (tPLH/tPHL) |
典型值 12 ns (A 到 B 或 B 到 A) |
| 輸出使能時間 (tPZH/tPZL) |
典型值 18 ns |
| 輸出禁用時間 (tPHZ/tPLZ) |
典型值 15 ns |
| 工作溫度 |
0°C 至 70°C |
| 封裝 |
20-SOIC (DW) |
核心特性
- 8位雙向匯流排收發器,帶反相三態輸出
- 高速傳播延遲:典型值 12 ns
- 低功耗:每通道典型值 50 mW
- TTL 輸入和輸出兼容
- 輸出灌電流:8 mA
- 輸出拉電流:-400 µA
- 獨立的輸出使能 (G) 和方向控制 (DIR) 引腳
- 封裝:20引腳 SOIC (DW),節省空間
典型應用場景
- 5G基站控制邏輯:基帶與射頻模塊之間的數據匯流排隔離和緩衝
- 汽車儀表盤顯示:微控制器與顯示驅動器之間的通信
- 工業PLC:CPU與I/O模塊之間的雙向數據傳輸
- 電信:線路卡的背板匯流排收發器
- 醫療設備:病人監護系統中的數據匯流排接口
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 SN74LS641-1DW 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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