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SN5442AJ from TI,Texas Instruments

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SN5442AJ

Manufacturer: TI, TI.

4-LINE BCD TO 10-LINE DECIMAL DECODERS

Partnumber Manufacturer Quantity Availability
SN5442AJ TI, TI. 198 In Stock

Description and Introduction

4-LINE BCD TO 10-LINE DECIMAL DECODERS The SN5442AJ is a BCD-to-decimal decoder manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type**: BCD-to-Decimal Decoder  
- **Number of Input Lines**: 4 (BCD input)  
- **Number of Output Lines**: 10 (Decimal outputs, active low)  
- **Supply Voltage Range**: 4.5V to 5.5V  
- **Operating Temperature Range**: 0°C to 70°C  
- **Package Type**: Ceramic DIP (Dual In-line Package)  
- **Technology**: TTL (Transistor-Transistor Logic)  

### **Descriptions and Features:**  
- Decodes a 4-bit Binary-Coded Decimal (BCD) input to one of ten mutually exclusive outputs.  
- Outputs are active low (logic "0" indicates the selected output).  
- Designed for high-speed operation in TTL logic systems.  
- Includes input clamping diodes for transient protection.  
- Suitable for driving indicator lamps, relays, or other logic circuits.  
- Part of the SN54 series, which is the military-grade version with a wider temperature range (compared to SN74 commercial series).  

This part is now considered obsolete by TI and may not be available for new designs.

Application Scenarios & Design Considerations

4-LINE BCD TO 10-LINE DECIMAL DECODERS

Alternative Part Number

  • DM5442J --: Same 5442-series BCD-to-decimal decoder function in a ceramic DIP package, pin-compatible replacement for the SN5442AJ.
  • MC5442L --: Equivalent 5442 decoder/driver in a ceramic package with matching logic function and supply range, suitable as a direct functional substitute.
  • CD4028BE --: CMOS BCD-to-decimal decoder providing the same decoding function with lower power consumption, usable when pinout and drive requirements are adapted.
  • 74LS85N --: Modern low-power Schottky 4-bit magnitude comparator with same function and pinout in DIP, though supply voltage and speed differ slightly.

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