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IDT74LVC138AQ from IDT

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IDT74LVC138AQ

Manufacturer: IDT

3.3V CMOS 3-LINE TO 8-LINE DECODER/DEMULTIPLEXER WITH 5 VOLT TOLERANT I/O

Partnumber Manufacturer Quantity Availability
IDT74LVC138AQ IDT 481 In Stock

Description and Introduction

3.3V CMOS 3-LINE TO 8-LINE DECODER/DEMULTIPLEXER WITH 5 VOLT TOLERANT I/O The **IDT74LVC138AQ** is a **3-to-8 line decoder/demultiplexer** manufactured by **Integrated Device Technology (IDT)**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Logic Family:** LVC (Low-Voltage CMOS)  
- **Supply Voltage Range:** **1.65V to 3.6V**  
- **Input Voltage Range:** **0V to 5.5V** (tolerant)  
- **Output Drive Capability:** **±24mA** at 3.3V  
- **Propagation Delay:** **4.5ns (max) at 3.3V**  
- **Operating Temperature Range:** **-40°C to +85°C**  
- **Package Type:** **TSSOP-16**  
- **Number of Inputs:** **3 (A0, A1, A2)**  
- **Number of Outputs:** **8 (Y0-Y7, active LOW)**  
- **Enable Inputs:** **Three (E1, E2, E3)** for flexible control  

### **Description:**
The **IDT74LVC138AQ** is a high-performance, low-voltage decoder/demultiplexer designed for **1.65V to 3.6V** operation. It decodes **three binary address inputs (A0-A2)** into **eight mutually exclusive outputs (Y0-Y7, active LOW)**. The device features **three enable inputs (E1, E2, E3)**, allowing for cascading and system-level control.  

### **Features:**
- **Wide Operating Voltage Range (1.65V–3.6V)**  
- **5V-Tolerant Inputs** (allows interfacing with 5V logic)  
- **High-Speed Operation** (4.5ns max propagation delay)  
- **Low Power Consumption** (optimized for battery-operated devices)  
- **Schmitt Trigger Inputs** for improved noise immunity  
- **ESD Protection** (exceeds 2000V per JESD22-A114)  
- **Pb-Free & RoHS Compliant**  

This device is commonly used in **address decoding, memory selection, and data routing** applications.  

Would you like additional details on a specific aspect?

Application Scenarios & Design Considerations

3.3V CMOS 3-LINE TO 8-LINE DECODER/DEMULTIPLEXER WITH 5 VOLT TOLERANT I/O

Alternative Part Number

  • SN74LVC138APWR --: Direct functional equivalent 3-to-8 line decoder/demultiplexer in the same LVC logic family, widely available in TSSOP package with matching pinout and electrical characteristics.
  • 74LVC138AD --: Same LVC-family 3-to-8 decoder function with compatible pinout and voltage range, offered in SO package as a drop-in replacement for the IDT device.
  • MC74LVC138ADR2G --: LVC-family 3-to-8 line decoder with equivalent logic function and pinout, available in SOIC package suitable for replacing the IDT74LVC138AQ.

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