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Product Overview
The SN74LV138AD from Texas Instruments is a 3-to-8 line decoder/demultiplexer designed for low-voltage operation (2V to 5.5V). It features three enable inputs for cascading and is ideal for memory decoding, data routing, and digital logic applications. The device is housed in a 16-SOIC package, offering a compact solution for space-constrained designs.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
2V to 5.5V |
| Input Voltage (VI) |
0V to 5.5V |
| Output Voltage (VO) |
0V to VCC |
| High-Level Input Voltage (VIH) |
0.7 × VCC (min) |
| Low-Level Input Voltage (VIL) |
0.3 × VCC (max) |
| High-Level Output Current (IOH) |
-12 mA (max) |
| Low-Level Output Current (IOL) |
12 mA (max) |
| 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 for cascading
- Low power consumption: 20 µA (max) ICC
- Wide operating voltage range: 2V to 5.5V
- High noise immunity: 0.7 × VCC (VIH), 0.3 × VCC (VIL)
- Compatible with TTL levels
- ESD protection exceeds 2000V (HBM)
Target Applications
- Memory decoding in 5G base stations (e.g., decoding address lines for FPGA configuration)
- Data routing in automotive dashboard displays (e.g., selecting sensor data streams)
- Digital logic in industrial control systems (e.g., PLC I/O expansion)
- Consumer electronics (e.g., set-top box channel selection)
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74LV138AD. 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
SN74LV138AD 是德州儀器(TI)推出的3線轉8線解碼器/多路分配器,專為低電壓操作(2V至5.5V)設計。它具有三個使能輸入,便於級聯,適用於存儲器解碼、數據路由和數字邏輯應用。器件採用16-SOIC封裝,為空間受限的設計提供緊湊解決方案。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
2V 至 5.5V |
| 輸入電壓 (VI) |
0V 至 5.5V |
| 輸出電壓 (VO) |
0V 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) |
| 高電平輸出電流 (IOH) |
-12 mA(最大值) |
| 低電平輸出電流 (IOL) |
12 mA(最大值) |
| 傳播延遲 (tpd) |
7.5 ns(典型值,5V時) |
| 工作溫度 |
-40°C 至 85°C |
| 封裝 |
16-SOIC |
核心特性
- 3線轉8線解碼器/多路分配器
- 三個使能輸入,便於級聯
- 低功耗:ICC 最大20 µA
- 寬工作電壓範圍:2V 至 5.5V
- 高抗噪能力:VIH 0.7 × VCC,VIL 0.3 × VCC
- 兼容TTL電平
- ESD保護超過2000V(HBM)
典型應用場景
- 5G基站中的存儲器解碼(例如,解碼FPGA配置的地址線)
- 汽車儀表盤顯示中的數據路由(例如,選擇傳感器數據流)
- 工業控制系統中的數字邏輯(例如,PLC I/O擴展)
- 消費電子產品(例如,機頂盒頻道選擇)
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