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SN54LS393 from TI,Texas Instruments

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SN54LS393

Manufacturer: TI

Dual 4-Bit Binary Counters

Partnumber Manufacturer Quantity Availability
SN54LS393 TI 300 In Stock

Description and Introduction

Dual 4-Bit Binary Counters The **SN54LS393** is a dual 4-bit binary ripple counter manufactured by Texas Instruments (TI).  

### **Key Specifications:**  
- **Logic Family:** LS (Low-Power Schottky)  
- **Supply Voltage (VCC):** 4.75V to 5.25V (standard 5V operation)  
- **Operating Temperature Range:** -55°C to +125°C (military-grade)  
- **Number of Counters:** 2 independent 4-bit counters  
- **Counting Sequence:** Binary (0 to 15)  
- **Reset Function:** Asynchronous master reset (active LOW)  
- **Clock Input:** Negative-edge triggered  
- **Output Type:** TTL-compatible  

### **Features:**  
- **Dual Counter Configuration:** Contains two separate 4-bit counters in a single package.  
- **Asynchronous Reset:** Each counter has a clear input for resetting the count to zero.  
- **Low Power Consumption:** Typical power dissipation of 45mW.  
- **High-Speed Operation:** Suitable for moderate-speed digital applications.  
- **Wide Operating Temperature:** Designed for harsh environments (military/industrial).  

### **Applications:**  
- Frequency division  
- Event counting  
- Digital timing circuits  
- Industrial and military electronics  

The **SN54LS393** is part of TI’s **54-series**, which is designed for extended temperature and reliability requirements, unlike the **74-series** (commercial grade).  

Would you like additional details on pin configurations or timing characteristics?

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