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SN74LS390NSR from TI,Texas Instruments

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SN74LS390NSR

Manufacturer: TI

Dual 4-Bit Decade Counters

Partnumber Manufacturer Quantity Availability
SN74LS390NSR TI 2000 In Stock

Description and Introduction

Dual 4-Bit Decade Counters The SN74LS390NSR is a dual decade counter manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Decade Counter  
- **Count Sequence:** Up  
- **Number of Bits per Element:** 4  
- **Number of Elements:** 2  
- **Trigger Type:** Negative Edge  
- **Supply Voltage (VCC):** 4.75V to 5.25V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package / Case:** SOP-16  
- **Mounting Type:** Surface Mount  
- **Output Type:** TTL  

### **Descriptions:**  
- The SN74LS390NSR is a dual 4-bit decade counter that operates in a divide-by-two and divide-by-five configuration.  
- It consists of two independent counters, each with a divide-by-two section and a divide-by-five section.  
- The device is designed for high-speed counting applications in digital systems.  

### **Features:**  
- Dual decade counters in a single package  
- Independent clock inputs for each counter  
- Asynchronous master reset for clearing the counter  
- TTL-compatible inputs and outputs  
- Low power consumption typical of LS technology  
- High noise immunity  

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

Application Scenarios & Design Considerations

Dual 4-Bit Decade Counters

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