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SN74147N from TI,Texas Instruments

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SN74147N

Manufacturer: TI

10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS

Partnumber Manufacturer Quantity Availability
SN74147N TI 389 In Stock

Description and Introduction

10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS The SN74147N is a priority encoder manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Type:** 10-line to 4-line priority encoder (BCD output)  
- **Logic Family:** TTL (Transistor-Transistor Logic)  
- **Supply Voltage (VCC):** 4.75V to 5.25V (standard 5V operation)  
- **Input Lines:** 9 active-low inputs (1-9)  
- **Output Lines:** 4 active-low BCD outputs (A0, A1, A2, A3)  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package Type:** PDIP-16 (Plastic Dual In-line Package, 16 pins)  
- **Propagation Delay:** Typically 30ns (varies with conditions)  
- **Power Consumption:** Moderate (standard TTL power dissipation)  

### **Descriptions:**  
The SN74147N encodes nine active-low data inputs (1-9) into a 4-line BCD (Binary-Coded Decimal) output. It features priority encoding, meaning the highest-order input takes precedence if multiple inputs are active simultaneously.  

### **Features:**  
- **Priority Encoding:** Highest-numbered active input determines the output  
- **Active-Low Inputs and Outputs:** Logic "0" indicates an active state  
- **BCD Output:** Converts input priority into a 4-bit binary code  
- **Wide Operating Voltage:** Compatible with standard 5V TTL logic  
- **Standard 16-Pin DIP Package:** Easy to integrate into breadboards and PCBs  

This device is commonly used in digital systems for keyboard encoding, interrupt handling, and data prioritization.

Application Scenarios & Design Considerations

10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS

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