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Product Overview
The SN74AHCT138DR is a high-performance 3-to-8 line decoder/demultiplexer from Texas Instruments, designed for 5V systems. It features three enable inputs for flexible control and is ideal for memory decoding, data routing, and digital logic applications. Housed in a compact 16-SOIC package, it offers low power consumption and high noise immunity.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (Vcc) |
4.5V to 5.5V |
| Input Voltage (VI) |
0V to 5.5V |
| Output Voltage (VO) |
0V to 5.5V |
| High-Level Input Voltage (VIH) |
2V min |
| Low-Level Input Voltage (VIL) |
0.8V max |
| High-Level Output Current (IOH) |
-8 mA |
| Low-Level Output Current (IOL) |
8 mA |
| Propagation Delay (tpd) |
7.5 ns typ at 5V |
| Operating Temperature |
-40°C to 85°C |
| Package |
16-SOIC |
Key Features
- 3-to-8 line decoder/demultiplexer
- Three enable inputs (G1, G2A, G2B) for cascading
- Low power consumption: 10 µA max ICC
- High noise immunity: typical VOH = 4.9V at 5V
- ESD protection exceeds 2000V per MIL-STD-883
- Latch-up performance exceeds 250 mA per JESD 17
Target Applications
- Memory decoding in 5G base stations (e.g., FPGA configuration)
- Data routing in automotive dashboards
- Address decoding in industrial PLCs
- Demultiplexing in test equipment
- Digital logic in consumer electronics
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74AHCT138DR. 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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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
SN74AHCT138DR 是德州儀器推出的高性能3線-8線解碼器/多路分配器,專為5V系統設計。它具備三個使能輸入,提供靈活的控制方式,適用於存儲器解碼、數據路由和數字邏輯應用。採用緊湊的16-SOIC封裝,功耗低且抗干擾能力強。
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 5.5V |
| 輸出電壓 (VO) |
0V 至 5.5V |
| 高電平輸入電壓 (VIH) |
最小值 2V |
| 低電平輸入電壓 (VIL) |
最大值 0.8V |
| 高電平輸出電流 (IOH) |
-8 mA |
| 低電平輸出電流 (IOL) |
8 mA |
| 傳播延遲 (tpd) |
典型值 7.5 ns (5V) |
| 工作溫度 |
-40°C 至 85°C |
| 封裝 |
16-SOIC |
核心特性
- 3線-8線解碼器/多路分配器
- 三個使能輸入 (G1, G2A, G2B) 支持級聯
- 低功耗:最大 ICC 10 µA
- 高抗干擾:典型 VOH 在5V時為4.9V
- ESD 保護超過 2000V (MIL-STD-883)
- 閂鎖性能超過 250 mA (JESD 17)
典型應用場景
- 5G基站中的存儲器解碼(如FPGA配置)
- 汽車儀表盤中的數據路由
- 工業PLC中的地址解碼
- 測試設備中的多路分配
- 消費電子中的數字邏輯
環球供應鏈與批發合作夥伴方案
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我們的核心優勢包括:
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