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Product Overview
The CD74ACT138BQBR is a high-speed 3-to-8 line decoder/demultiplexer from Texas Instruments, fabricated with advanced CMOS technology. It is designed for memory decoding and data routing applications requiring low power dissipation and high noise immunity. The device features three binary select inputs (A, B, C) and three enable inputs (G1, G2A, G2B), providing flexible decoding options. It is available in a compact 16-WQFN (2.5x3.5 mm) package, ideal for space-constrained designs.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.5V to 5.5V |
| Input Voltage (VI) |
0V to VCC |
| Output Voltage (VO) |
0V to VCC |
| High-Level Input Voltage (VIH) |
2V (min) |
| Low-Level Input Voltage (VIL) |
0.8V (max) |
| High-Level Output Current (IOH) |
-24 mA |
| Low-Level Output Current (IOL) |
24 mA |
| Propagation Delay (tpd) |
8.5 ns (typ) at 5V, 50 pF |
| Operating Temperature |
-40°C to +125°C |
| Package |
16-WQFN (2.5x3.5 mm) |
Key Features
- High speed: typical propagation delay of 8.5 ns at 5V
- Low power consumption: 40 µA max ICC
- 3-to-8 line decoder/demultiplexer function
- Three enable inputs for cascading
- Inputs are TTL-voltage compatible
- Outputs source/sink 24 mA
- ESD protection exceeds 2000V per MIL-STD-883
- Available in lead-free, RoHS-compliant package
Target Applications
- Memory decoding in 5G base station control boards
- Data routing in automotive dashboard displays
- Address decoding in industrial PLC systems
- Multiplexing in medical imaging equipment
- Signal selection in test and measurement instruments
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
CD74ACT138BQBR. 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.
-
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
CD74ACT138BQBR 是德州儀器推出的一款高速3線轉8線解碼器/多路分配器,採用先進的CMOS工藝製造。它專為需要低功耗和高抗噪聲的存儲器解碼和數據路由應用而設計。該器件具有三個二進制選擇輸入(A、B、C)和三個使能輸入(G1、G2A、G2B),提供靈活的解碼選項。它採用緊湊的16-WQFN(2.5x3.5 mm)封裝,非常適合空間受限的設計。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
4.5V 至 5.5V |
| 輸入電壓 (VI) |
0V 至 VCC |
| 輸出電壓 (VO) |
0V 至 VCC |
| 高電平輸入電壓 (VIH) |
2V(最小值) |
| 低電平輸入電壓 (VIL) |
0.8V(最大值) |
| 高電平輸出電流 (IOH) |
-24 mA |
| 低電平輸出電流 (IOL) |
24 mA |
| 傳播延遲 (tpd) |
8.5 ns(典型值,5V,50 pF) |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
16-WQFN(2.5x3.5 mm) |
核心特性
- 高速:5V時典型傳播延遲為8.5 ns
- 低功耗:最大ICC為40 µA
- 3線轉8線解碼器/多路分配器功能
- 三個使能輸入,便於級聯
- 輸入與TTL電壓兼容
- 輸出可提供/吸收24 mA電流
- ESD保護超過2000V(MIL-STD-883)
- 採用無鉛、符合RoHS標準的封裝
典型應用場景
- 5G基站控制板中的存儲器解碼
- 汽車儀表盤顯示器的數據路由
- 工業PLC系統中的地址解碼
- 醫療成像設備中的多路復用
- 測試與測量儀器中的信號選擇
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 CD74ACT138BQBR 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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