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SNJ54LS42J

Manufacturer: TI

54LS42 DM54LS42 DM74LS42 BCD to Decimal Decoders

Partnumber Manufacturer Quantity Availability
SNJ54LS42J TI 303 In Stock

Description and Introduction

54LS42 DM54LS42 DM74LS42 BCD to Decimal Decoders The SNJ54LS42J is a BCD-to-decimal decoder manufactured by Texas Instruments. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Logic Family:** LS (Low-Power Schottky)  
- **Function:** BCD-to-Decimal Decoder  
- **Number of Inputs:** 4 (BCD inputs: A, B, C, D)  
- **Number of Outputs:** 10 (Active-low outputs: Y0-Y9)  
- **Supply Voltage Range (VCC):** 4.5V to 5.5V  
- **Operating Temperature Range:** -55°C to +125°C (Military-grade)  
- **Package Type:** Ceramic DIP (Dual In-line Package)  
- **Propagation Delay (Typical):** 21ns  
- **Power Consumption:** Low power dissipation  

### **Descriptions:**  
- The SNJ54LS42J is a 4-line BCD (Binary-Coded Decimal) to 10-line decimal decoder.  
- It converts a 4-bit BCD input into one of ten mutually exclusive active-low outputs.  
- Designed for high-reliability applications, including military and aerospace.  
- Features Schottky-clamped transistor logic for improved speed and noise immunity.  

### **Features:**  
- **Active-Low Outputs:** Only the selected output goes low while others remain high.  
- **High Noise Immunity:** LS technology ensures reliable operation in noisy environments.  
- **Wide Operating Temperature Range:** Suitable for harsh conditions.  
- **Input Clamp Diodes:** Minimize transmission-line effects.  
- **Schottky Barrier Diode Clamping:** Reduces storage time for faster switching.  
- **Military-Grade Reliability:** Meets MIL-STD-883 standards for rugged applications.  

This information is strictly based on the manufacturer's datasheet and specifications.

Application Scenarios & Design Considerations

54LS42 DM54LS42 DM74LS42 BCD to Decimal Decoders

Alternative Part Number

  • 74LS42 --: Same 4-to-10 line decoder function in the commercial 74LS series; direct functional equivalent with a different prefix.
  • MC74LS42N --: Pin-compatible 4-to-10 decoder from a different manufacturer and series naming, suitable as a drop-in replacement.
  • DM74LS42N --: Equivalent BCD-to-decimal decoder in the 74LS family from another vendor, offering a distinct part number for sourcing flexibility.
  • 74LS42N --: Same 4-to-10 line BCD-to-decimal decoder function in a DIP package; commercial temperature grade but electrically compatible for most designs.

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