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Product Overview
The SN74F251BDR from Texas Instruments is a high-speed 8-input multiplexer with 3-state outputs, designed for digital data selection and routing. Fabricated with advanced Schottky-clamped bipolar technology, it offers fast propagation delays and low power consumption. The device features a common select input (S0–S2) and an output enable (OE) input, making it ideal for bus-oriented systems. Housed in a 16-pin SOIC package, it operates over a wide voltage range and is compatible with TTL logic levels.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.5V to 5.5V |
| Input Voltage Range |
0V to 5.5V |
| Output Voltage Range |
0V to VCC |
| Propagation Delay (tpd) |
6.5 ns (typical) |
| Output Current (IOH/IOL) |
-15 mA / 64 mA |
| Operating Temperature |
0°C to 70°C |
| Package |
16-SOIC |
| Logic Family |
F (Fast) |
| Number of Inputs |
8 |
| Number of Outputs |
1 (3-state) |
Key Features
- 8-input multiplexer with 3-state outputs
- Schottky-clamped for high speed
- Low power consumption (ICC = 20 mA typical)
- TTL-compatible inputs and outputs
- Output enable (OE) for bus isolation
- Wide operating voltage range
- Industry-standard 16-SOIC package
Target Applications
- Data routing in 5G base station control boards
- Signal selection in automotive dashboard displays
- Bus multiplexing in industrial PLC systems
- Address decoding in memory modules
- Function selection in test equipment
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74F251BDR. Our core advantages include:
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orders confirmed before 4 PM are shipped the same day.
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testing samples and urgent shortage components.
Quality Assurance & Compliance
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with full quality assurance and traceability.
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be authentic with strict quality control.
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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
SN74F251BDR 是德州儀器推出的高速8輸入多路復用器,具有三態輸出,專為數字數據選擇和路由設計。採用先進的肖特基箝位雙極工藝,提供快速傳播延遲和低功耗。器件具有公共選擇輸入(S0–S2)和輸出使能(OE)輸入,非常適合總線導向系統。採用16引腳SOIC封裝,工作電壓範圍寬,兼容TTL邏輯電平。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
4.5V 至 5.5V |
| 輸入電壓範圍 |
0V 至 5.5V |
| 輸出電壓範圍 |
0V 至 VCC |
| 傳播延遲 (tpd) |
6.5 ns(典型值) |
| 輸出電流 (IOH/IOL) |
-15 mA / 64 mA |
| 工作溫度 |
0°C 至 70°C |
| 封裝 |
16-SOIC |
| 邏輯系列 |
F(快速) |
| 輸入數量 |
8 |
| 輸出數量 |
1(三態) |
核心特性
- 8輸入多路復用器,帶三態輸出
- 肖特基箝位,實現高速
- 低功耗(ICC 典型值 20 mA)
- TTL兼容輸入和輸出
- 輸出使能(OE)用於總線隔離
- 寬工作電壓範圍
- 業界標準16-SOIC封裝
典型應用場景
- 5G基站控制板中的數據路由
- 汽車儀表盤顯示中的信號選擇
- 工業PLC系統中的總線多路復用
- 存儲模塊中的地址解碼
- 測試設備中的功能選擇
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