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DM74LS390 from FSC,Fairchild Semiconductor

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31.250ms

DM74LS390

Manufacturer: FSC

Dual 4-Bit Decade Counter

Partnumber Manufacturer Quantity Availability
DM74LS390 FSC 5 In Stock

Description and Introduction

Dual 4-Bit Decade Counter The DM74LS390 is a dual decade ripple counter manufactured by Fairchild Semiconductor (FSC). Here are its key specifications:

1. **Logic Family**: LS-TTL  
2. **Function**: Dual 4-bit binary counter (decade ripple counter)  
3. **Operating Voltage**: 4.75V to 5.25V  
4. **Propagation Delay**: Typically 30 ns  
5. **Maximum Clock Frequency**: 32 MHz  
6. **Output Current**: High-level output: -0.4 mA, Low-level output: 8 mA  
7. **Package Options**: 16-pin DIP (Dual In-line Package)  
8. **Operating Temperature Range**: 0°C to +70°C  
9. **Features**:  
   - Two independent counters in one package  
   - Asynchronous reset capability  
   - TTL-compatible inputs and outputs  

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

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