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SN5490AJ from TI,Texas Instruments

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SN5490AJ

Manufacturer: TI

Decade Counter

Partnumber Manufacturer Quantity Availability
SN5490AJ TI 70 In Stock

Description and Introduction

Decade Counter The SN5490AJ is a decade counter manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Decade Counter  
- **Technology:** TTL (Transistor-Transistor Logic)  
- **Supply Voltage (VCC):** 4.75V to 5.25V  
- **Operating Temperature Range:** -55°C to +125°C  
- **Package Type:** Ceramic DIP (Dual In-line Package)  
- **Number of Bits:** 4-bit (BCD output)  
- **Counting Sequence:** Asynchronous (ripple counter)  
- **Reset Capability:** Master reset (MR) input for clearing the count  

### **Descriptions and Features:**  
- The SN5490AJ is a ripple counter that divides the input clock frequency by 10 (decade counting).  
- It consists of four master-slave flip-flops internally connected to provide a divide-by-2 and a divide-by-5 counter.  
- Outputs are in Binary Coded Decimal (BCD) format.  
- Includes a master reset (MR) pin to clear the count to zero.  
- Designed for high-speed counting applications in military and industrial environments.  
- Compatible with other TTL logic families.  

For detailed electrical characteristics and timing diagrams, refer to the official TI datasheet.

Application Scenarios & Design Considerations

Decade Counter

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