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Product Overview
The SN74LS641-1N is a high-performance octal bus transceiver from Texas Instruments (TI), designed for bidirectional asynchronous communication between data buses. It features non-inverting outputs with 3-state capability, allowing multiple outputs to share a common bus. The device is housed in a 20-pin PDIP package and operates over a wide temperature range. With its low-power Schottky (LS) technology, it offers a balance of speed and power consumption, making it suitable for a variety of digital systems.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.75V to 5.25V |
| Input Voltage Range |
0V to 5.5V |
| Output Voltage Range |
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-PDIP |
| Logic Family |
LS |
| Number of Bits |
8 |
| Direction Control |
Dual (DIR and OE) |
Key Features
- Non-inverting 3-state outputs for bus-oriented applications
- Low power consumption typical of LS logic
- High-impedance outputs when disabled (OE high)
- Bidirectional data flow controlled by DIR input
- Inputs are TTL-compatible
- Outputs can drive up to 15 LSTTL loads
- Wide operating temperature range: 0°C to 70°C
- Industry-standard 20-pin PDIP package
Target Applications
The SN74LS641-1N is ideal for use in digital systems requiring bidirectional data transfer between buses. Specific applications include:
- 5G base station control logic for data routing between processors and memory
- Automotive dashboard display systems for communication between microcontroller and display driver
- Industrial programmable logic controllers (PLCs) for I/O module interfacing
- Telecommunications equipment for backplane data transfer
- Data acquisition systems for sensor data bus management
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74LS641-1N. 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
SN74LS641-1N 是德州儀器 (TI) 生產的高性能八路匯流排收發器,專為數據匯流排之間的雙向異步通信而設計。它具有同相輸出和三態功能,允許多個輸出共享同一匯流排。該器件採用 20 引腳 PDIP 封裝,可在較寬的溫度範圍內工作。憑藉其低功耗肖特基 (LS) 技術,它在速度和功耗之間取得了平衡,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 |
| 輸入電壓範圍 |
0V 至 5.5V |
| 輸出電壓範圍 |
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-PDIP |
| 邏輯系列 |
LS |
| 位數 |
8 |
| 方向控制 |
雙向 (DIR 和 OE) |
核心特性
- 同相三態輸出,適用於匯流排應用
- LS 邏輯的典型低功耗
- 禁用時 (OE 高電平) 輸出為高阻抗
- 由 DIR 輸入控制的雙向數據流
- 輸入與 TTL 兼容
- 輸出可驅動多達 15 個 LSTTL 負載
- 寬工作溫度範圍:0°C 至 70°C
- 行業標準 20 引腳 PDIP 封裝
典型應用場景
SN74LS641-1N 非常適合需要匯流排間雙向數據傳輸的數字系統。具體應用包括:
- 5G 基站控制邏輯,用於處理器與內存之間的數據路由
- 汽車儀表板顯示系統,用於微控制器與顯示驅動器之間的通信
- 工業可編程邏輯控制器 (PLC) 的 I/O 模塊接口
- 電信設備的背板數據傳輸
- 數據採集系統的傳感器數據匯流排管理
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 SN74LS641-1N 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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