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SN74HC148DR from TI,Texas Instruments

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SN74HC148DR

Manufacturer: TI

8-Line To 3-Line Priority Encoders

Partnumber Manufacturer Quantity Availability
SN74HC148DR TI 62500 In Stock

Description and Introduction

8-Line To 3-Line Priority Encoders The SN74HC148DR is a 8-line to 3-line priority encoder manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type**: Priority Encoder  
- **Number of Inputs**: 8  
- **Number of Outputs**: 3 (binary encoded)  
- **Supply Voltage Range**: 2V to 6V  
- **Operating Temperature Range**: -40°C to +85°C  
- **Package / Case**: SOIC-16  
- **Mounting Type**: Surface Mount  
- **Output Type**: Standard  
- **Propagation Delay Time**: 19 ns (typical at 5V)  
- **High-Level Output Current**: -5.2 mA  
- **Low-Level Output Current**: 5.2 mA  
- **RoHS Compliant**: Yes  

### **Descriptions:**  
The SN74HC148DR encodes eight active-low data inputs (D0–D7) into a 3-bit binary code (A0–A2) based on the highest-priority input. It features priority decoding to ensure only the highest-order input is encoded. The device includes an enable input (EI) and an enable output (EO) for cascading multiple encoders.  

### **Features:**  
- **8-Line to 3-Line Priority Encoding**  
- **Active-Low Inputs and Outputs**  
- **Cascading Capability (EI and EO)**  
- **Low Power Consumption**  
- **Wide Operating Voltage Range (2V to 6V)**  
- **High Noise Immunity**  
- **Fast Switching Speed**  
- **Schmitt-Trigger Inputs for Noise Reduction**  

This encoder is commonly used in digital systems for interrupt handling, keyboard encoding, and address decoding applications.

Application Scenarios & Design Considerations

8-Line To 3-Line Priority Encoders

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