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SN74HC148D from TI,Texas Instruments

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SN74HC148D

Manufacturer: TI

8-Line To 3-Line Priority Encoders

Partnumber Manufacturer Quantity Availability
SN74HC148D TI 17 In Stock

Description and Introduction

8-Line To 3-Line Priority Encoders The SN74HC148D is a 8-line to 3-line priority encoder manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type**: Priority Encoder  
- **Number of Inputs**: 8 (active LOW)  
- **Number of Outputs**: 3 (binary-weighted, active LOW)  
- **Supply Voltage Range**: 2V to 6V  
- **High-Level Input Voltage (Min)**: 2V  
- **Low-Level Input Voltage (Max)**: 0.8V  
- **Operating Temperature Range**: -40°C to 85°C  
- **Package**: SOIC-16  
- **Propagation Delay**: 18 ns (typical at 5V)  
- **Current - Output High, Low**: 5.2mA, 5.2mA  

### **Descriptions:**  
- The SN74HC148D encodes eight active-LOW inputs into a 3-bit binary code (active-LOW outputs).  
- It features priority decoding, ensuring the highest-order input is encoded when multiple inputs are active.  
- Includes an enable input (EI, active LOW) and an enable output (EO, active LOW) for cascading multiple encoders.  
- A group select (GS) output indicates when any input is active.  

### **Features:**  
- **Priority Encoding**: Highest-order input has precedence.  
- **Wide Operating Voltage**: 2V to 6V.  
- **Low Power Consumption**: CMOS technology.  
- **Cascadable**: Multiple encoders can be connected using EI and EO.  
- **Schmitt-Trigger Inputs**: Improves noise immunity.  
- **Industry-Standard Pinout**: Compatible with other 74HC logic devices.  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

8-Line To 3-Line Priority Encoders

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