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Product Overview
The SN74AHC157N is a high-speed quad 2-input multiplexer from Texas Instruments, designed for 2-V to 5.5-V VCC operation. It selects one of two 4-bit data sources based on the state of the select input. The device features low power consumption and high noise immunity, making it suitable for a wide range of digital applications.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
2 V to 5.5 V |
| Input Voltage (VI) |
0 V to 5.5 V |
| Output Voltage (VO) |
0 V to VCC |
| High-Level Input Voltage (VIH) |
0.7 × VCC (min) |
| Low-Level Input Voltage (VIL) |
0.3 × VCC (max) |
| Propagation Delay (tpd) |
7.5 ns (typ) at 5 V, 50 pF |
| Input Capacitance (Ci) |
4 pF (typ) |
| Operating Temperature |
-40°C to 125°C |
| Package |
16-PDIP |
Key Features
- Wide operating voltage range: 2 V to 5.5 V
- High speed: tpd = 7.5 ns (typ) at 5 V
- Low power consumption: 10-µA max ICC
- High noise immunity: VNIH = VNIL = 28% of VCC (min)
- Inputs are overvoltage tolerant up to 5.5 V
- Outputs drive up to 8 LSTTL loads
- Latch-up performance exceeds 250 mA per JESD 17
Target Applications
- Data routing in 5G base stations (e.g., signal selection between redundant paths)
- Automotive dashboard display selection (e.g., switching between camera feeds)
- Industrial control systems (e.g., sensor data multiplexing)
- Consumer electronics (e.g., input source selection in audio/video devices)
- Communication equipment (e.g., channel selection in routers)
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74AHC157N. 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
SN74AHC157N 是德州儀器(TI)生產的高速四路2選1多路復用器,工作電壓範圍為2V至5.5V。它根據選擇輸入的狀態,從兩個4位數據源中選擇一個。該器件具有低功耗和高抗噪聲能力,適用於多種數字應用。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
2 V 至 5.5 V |
| 輸入電壓 (VI) |
0 V 至 5.5 V |
| 輸出電壓 (VO) |
0 V 至 VCC |
| 高電平輸入電壓 (VIH) |
0.7 × VCC(最小值) |
| 低電平輸入電壓 (VIL) |
0.3 × VCC(最大值) |
| 傳播延遲 (tpd) |
7.5 ns(典型值,5V,50pF) |
| 輸入電容 (Ci) |
4 pF(典型值) |
| 工作溫度 |
-40°C 至 125°C |
| 封裝 |
16-PDIP |
核心特性
- 寬工作電壓範圍:2 V 至 5.5 V
- 高速:tpd = 7.5 ns(典型值,5V)
- 低功耗:最大 ICC 為 10 µA
- 高抗噪聲:VNIH = VNIL = 28% of VCC(最小值)
- 輸入可承受高達 5.5 V 的過壓
- 輸出可驅動多達 8 個 LSTTL 負載
- 閂鎖性能超過 250 mA,符合 JESD 17 標準
典型應用場景
- 5G 基站中的數據路由(例如,冗餘路徑之間的信號選擇)
- 汽車儀表盤顯示選擇(例如,切換攝像頭畫面)
- 工業控制系統(例如,傳感器數據多路復用)
- 消費電子產品(例如,音頻/視頻設備中的輸入源選擇)
- 通信設備(例如,路由器中的通道選擇)
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 SN74AHC157N 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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現貨庫存,即日發貨:確保現貨充足。下午 4 點前確認訂單,即可安排當天寄出。
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Jasin Chip 承諾所有出貨產品均為原廠正貨,具備完善的品質保證及產品可追溯性。
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原廠封裝保護:嚴格保留原廠原始包裝及封條,確保物流過程中的靜電防護 (ESD) 與物理安全。
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