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SN74LS393DR2 from MOTOROLA

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SN74LS393DR2

Manufacturer: MOTOROLA, MOT

DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER

Partnumber Manufacturer Quantity Availability
SN74LS393DR2 MOTOROLA, MOT 503 In Stock

Description and Introduction

DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER The SN74LS393DR2 is a dual 4-bit binary ripple counter manufactured by Texas Instruments (MOT refers to Motorola, but the correct manufacturer is Texas Instruments).  

### **Specifications:**  
- **Logic Type:** Dual 4-bit Binary Counter  
- **Technology:** LS (Low-Power Schottky)  
- **Supply Voltage Range:** 4.75V to 5.25V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package Type:** SOIC-14  
- **Output Type:** Standard  
- **Clock Frequency:** Up to 35 MHz (typical)  
- **Propagation Delay:** 20 ns (typical)  
- **Reset Function:** Asynchronous Master Reset  

### **Descriptions & Features:**  
- Contains two independent 4-bit ripple counters.  
- Each counter has a separate clock (CP) and clear (MR) input.  
- Asynchronous reset allows immediate clearing of the count.  
- Outputs change state on the negative-going clock edge.  
- Compatible with TTL (Transistor-Transistor Logic) inputs and outputs.  
- Low-power consumption compared to standard TTL.  
- Applications include frequency division, time delay generation, and digital counting circuits.  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER

Alternative Part Number

  • DM74LS393N --: Same dual 4-bit binary counter function in the 74LS logic family, widely available and pin-compatible in DIP form.
  • 74LS393 --: Direct functional equivalent dual 4-bit ripple counter from a major logic supplier, commonly used as a drop-in replacement.
  • MC74LS393N --: Motorola-lineage 74LS393 counter from ON Semiconductor, same logic function and compatible pinout.
  • CD74HC393E --: Dual 4-bit binary counter with equivalent logic function; HC family offers lower power and is a common drop-in substitute with attention to speed.

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