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Product Overview
The SN74CBT3257DBR from Texas Instruments is a high-performance 4-channel, 2:1 FET bus switch designed for multiplexing and demultiplexing digital signals. It features low on-state resistance (5 Ω typical) and wide bandwidth, making it ideal for signal routing in high-speed digital systems. The device operates over a wide supply voltage range of 4.5 V to 5.5 V and is available in a compact 16-SSOP package.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.5 V to 5.5 V |
| On-State Resistance (RON) |
5 Ω (typical) |
| Bandwidth |
200 MHz (typical) |
| Number of Channels |
4 |
| Configuration |
2:1 Multiplexer/Demultiplexer |
| Propagation Delay |
0.25 ns (typical) |
| Operating Temperature |
-40°C to +85°C |
| Package |
16-SSOP |
Key Features
- Low on-state resistance (5 Ω typical) minimizes signal distortion
- High bandwidth (200 MHz) supports high-speed data transmission
- Low propagation delay (0.25 ns) for real-time switching
- Wide supply voltage range (4.5 V to 5.5 V) for flexible system integration
- Break-before-make switching prevents signal contention
- ESD protection exceeds 2000 V per MIL-STD-883, Method 3015
Target Applications
- 5G base station signal routing and multiplexing
- Automotive dashboard display switching
- Industrial control systems for sensor signal selection
- Data communication equipment (routers, switches)
- Test and measurement equipment for channel expansion
Global Supply Chain & Wholesale Solutions
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SN74CBT3257DBR. Our core advantages include:
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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
SN74CBT3257DBR 是德州儀器 (TI) 推出的一款高性能 4 通道 2:1 FET 匯流排開關,專為數位訊號的多工與解多工設計。其典型導通電阻僅 5 Ω,頻寬高達 200 MHz,非常適合高速數位系統中的訊號路由。該器件支援 4.5 V 至 5.5 V 的寬電源電壓範圍,並採用緊湊的 16-SSOP 封裝。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
4.5 V 至 5.5 V |
| 導通電阻 (RON) |
5 Ω (典型值) |
| 頻寬 |
200 MHz (典型值) |
| 通道數 |
4 |
| 配置 |
2:1 多工器/解多工器 |
| 傳播延遲 |
0.25 ns (典型值) |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
16-SSOP |
核心特性
- 低導通電阻 (典型 5 Ω),減少訊號失真
- 高頻寬 (200 MHz),支援高速資料傳輸
- 低傳播延遲 (0.25 ns),實現即時切換
- 寬電源電壓範圍 (4.5 V 至 5.5 V),便於系統整合
- 先斷後合切換,防止訊號衝突
- ESD 保護超過 2000 V (符合 MIL-STD-883 方法 3015)
典型應用場景
- 5G 基地台訊號路由與多工
- 汽車儀表板顯示切換
- 工業控制系統中的感測器訊號選擇
- 資料通訊設備 (路由器、交換機)
- 測試與量測設備的通道擴展
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