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SN54LS248J from TI,Texas Instruments

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SN54LS248J

Manufacturer: TI

BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS

Partnumber Manufacturer Quantity Availability
SN54LS248J TI 500 In Stock

Description and Introduction

BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS The SN54LS248J is a BCD-to-Seven-Segment Decoder/Driver manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Family:** LS (Low-Power Schottky)  
- **Technology:** TTL (Transistor-Transistor Logic)  
- **Supply Voltage (VCC):** 4.75V to 5.25V  
- **Operating Temperature Range:** -55°C to +125°C (Military-grade)  
- **Output Type:** Open-Collector  
- **Number of Input Lines:** 4 (BCD Input)  
- **Number of Output Lines:** 7 (Seven-Segment Outputs)  
- **Power Dissipation:** 45mW (Typical)  
- **Propagation Delay:** 35ns (Typical)  

### **Descriptions:**  
The SN54LS248J is designed to convert a 4-bit Binary-Coded Decimal (BCD) input into the corresponding seven-segment display outputs. It includes internal pull-up resistors and ripple-blanking features for display control.  

### **Features:**  
- **BCD-to-Seven-Segment Decoding:** Converts 4-bit BCD to active-high seven-segment outputs.  
- **Open-Collector Outputs:** Allows direct drive of common-anode LED or incandescent displays.  
- **Lamp Test Input:** Tests all segments by forcing a full display.  
- **Ripple-Blanking Input/Output:** Controls leading/trailing zero suppression.  
- **High Noise Immunity:** Typical of LS-series TTL logic.  
- **Military Temperature Range:** Suitable for harsh environments.  

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

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