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SN74LS248N from TI,Texas Instruments

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SN74LS248N

Manufacturer: TI

BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS

Partnumber Manufacturer Quantity Availability
SN74LS248N TI 28 In Stock

Description and Introduction

BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS The SN74LS248N is a BCD-to-7-segment decoder/driver manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Logic Family:** 74LS (Low-Power Schottky)  
- **Function:** BCD-to-7-segment decoder/driver with open-collector outputs  
- **Supply Voltage (VCC):** 4.75V to 5.25V (nominal 5V)  
- **Operating Temperature Range:** 0°C to +70°C  
- **Output Type:** Open-collector (requires external pull-up resistors)  
- **Input Type:** TTL-compatible  
- **Propagation Delay (Typical):** 22 ns  
- **Power Dissipation:** 45 mW (typical)  
- **Package:** 16-pin DIP (Plastic Dual In-Line Package)  

### **Description:**  
The SN74LS248N is designed to convert a 4-bit Binary-Coded Decimal (BCD) input into a 7-segment display output. It includes internal circuitry for segment decoding and features open-collector outputs, making it suitable for driving common-anode LED displays. It also includes ripple-blanking input (RBI) and blanking input (BI) for display control.

### **Features:**  
- **BCD Input to 7-Segment Output:** Converts 4-bit BCD to 7-segment LED-compatible outputs.  
- **Open-Collector Outputs:** Allows direct drive of common-anode displays with external resistors.  
- **Lamp Test (LT) Input:** Forces all segments ON for testing.  
- **Ripple-Blanking Input (RBI) & Blanking Input (BI):** Controls display blanking for leading/trailing zeros.  
- **TTL-Compatible Inputs:** Works with standard TTL logic levels.  
- **Low Power Consumption:** Typical power dissipation of 45 mW.  
- **16-Pin DIP Package:** Standard through-hole mounting.  

This information is based on the manufacturer's datasheet and technical documentation.

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