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SN74LS447J from TI,Texas Instruments

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SN74LS447J

Manufacturer: TI

BCD-TO-SEVEN-DECODERS/DRIVERS

Partnumber Manufacturer Quantity Availability
SN74LS447J TI 35 In Stock

Description and Introduction

BCD-TO-SEVEN-DECODERS/DRIVERS The SN74LS447J is a BCD-to-7-segment decoder/driver manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Family:** LS (Low-Power Schottky)  
- **Function:** BCD-to-7-segment decoder/driver with open-collector outputs  
- **Supply Voltage (VCC):** 4.75V to 5.25V (nominal 5V)  
- **Output Type:** Open-collector  
- **Maximum Output Current (per segment):** 24mA  
- **Power Dissipation:** 100mW (typical)  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package Type:** 16-pin DIP (Dual In-line Package)  

### **Description:**  
The SN74LS447J converts a 4-bit Binary Coded Decimal (BCD) input into the corresponding 7-segment display output. It is designed to drive common-anode LED displays directly.  

### **Features:**  
- **BCD Input:** Accepts 4-bit BCD (0000 to 1001)  
- **7-Segment Outputs:** Active-low, open-collector outputs (a-g)  
- **Lamp Test (LT) Input:** Allows all segments to be illuminated for testing  
- **Ripple Blanking Input/Output (RBI/RBO):** Used for blanking leading/trailing zeros in multi-digit displays  
- **Low Power Consumption:** LS technology ensures reduced power usage  

This IC is commonly used in digital display applications such as counters, clocks, and instrumentation panels.

Application Scenarios & Design Considerations

BCD-TO-SEVEN-DECODERS/DRIVERS

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