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Product Overview
The SN74ALS245ANSR is a high-performance octal bus transceiver from Texas Instruments, designed for bidirectional asynchronous communication between data buses. It features 8-bit non-inverting buffers with 3-state outputs, enabling efficient data flow control in digital systems. Housed in a 20-pin SO package, this device operates over a wide voltage range and offers high drive capability, making it suitable for a variety of industrial and commercial applications.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.5 V to 5.5 V |
| Input Voltage Range |
0 V to 5.5 V |
| Output Current (IOL/IOH) |
±24 mA / ±15 mA |
| Propagation Delay (tpd) |
8 ns (max) at 5 V, 50 pF |
| Operating Temperature |
0°C to 70°C |
| Package |
20-SO (NSR suffix) |
| Logic Family |
ALS (Advanced Low-Power Schottky) |
| Number of Bits |
8 |
| Direction Control |
DIR pin (active high for A-to-B, low for B-to-A) |
| Output Enable |
Active-low OE pin |
Key Features
- Bidirectional bus transceiver with 8-bit non-inverting data paths
- 3-state outputs for bus-oriented applications
- High drive capability: ±24 mA sink, ±15 mA source
- Fast propagation delay: 8 ns typical at 5 V
- Low power consumption: 50 mW typical
- Wide operating voltage: 4.5 V to 5.5 V
- Input hysteresis for improved noise margin
- Compatible with TTL and CMOS logic levels
- Industry-standard 20-SO package for space-constrained designs
Target Applications
- 5G base station control boards for data bus isolation
- Automotive dashboard display systems for signal buffering
- Industrial PLC (Programmable Logic Controller) I/O modules
- Telecommunications equipment for backplane data transfer
- Medical imaging devices (e.g., ultrasound consoles) for data routing
- Consumer electronics like smart home hubs for peripheral interfacing
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74ALS245ANSR. 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
SN74ALS245ANSR 是德州儀器 (TI) 生產的高性能八路匯流排收發器,專為雙向異步數據匯流排通信設計。它包含8位非反相緩衝器,具有三態輸出,可實現數字系統中高效的數據流控制。該器件採用20引腳SO封裝,工作電壓範圍寬,驅動能力強,適用於多種工業和商業應用。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
4.5 V 至 5.5 V |
| 輸入電壓範圍 |
0 V 至 5.5 V |
| 輸出電流 (IOL/IOH) |
±24 mA / ±15 mA |
| 傳播延遲 (tpd) |
8 ns (最大值) 在 5 V, 50 pF |
| 工作溫度 |
0°C 至 70°C |
| 封裝 |
20-SO (NSR 後綴) |
| 邏輯系列 |
ALS (高級低功耗肖特基) |
| 位數 |
8 |
| 方向控制 |
DIR 引腳 (高電平為 A 到 B,低電平為 B 到 A) |
| 輸出使能 |
低電平有效 OE 引腳 |
核心特性
- 雙向匯流排收發器,8位非反相數據路徑
- 三態輸出,適用於匯流排應用
- 高驅動能力:±24 mA 灌電流,±15 mA 拉電流
- 快速傳播延遲:5 V 時典型值 8 ns
- 低功耗:典型值 50 mW
- 寬工作電壓:4.5 V 至 5.5 V
- 輸入滯回,提高噪聲容限
- 兼容 TTL 和 CMOS 邏輯電平
- 行業標準 20-SO 封裝,節省空間
典型應用場景
- 5G 基站控制板,用於數據匯流排隔離
- 汽車儀表盤顯示系統,用於信號緩衝
- 工業 PLC I/O 模塊
- 電信設備背板數據傳輸
- 醫療影像設備(如超聲控制台)數據路由
- 消費電子如智能家居中樞的外設接口
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 SN74ALS245ANSR 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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