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SNJ54LS197J from TI,Texas Instruments

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SNJ54LS197J

Manufacturer: TI

50/30/100-MHZ PRESETTABLE DECADE OR BINARY COUNTERS/LATCHES

Partnumber Manufacturer Quantity Availability
SNJ54LS197J TI 140 In Stock

Description and Introduction

50/30/100-MHZ PRESETTABLE DECADE OR BINARY COUNTERS/LATCHES The SNJ54LS197J is a part manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)  
- **Part Number:** SNJ54LS197J  
- **Technology Family:** LS (Low-Power Schottky)  
- **Package Type:** Ceramic DIP (Dual In-Line Package)  
- **Operating Temperature Range:** -55°C to +125°C (Military-grade)  
- **Supply Voltage (VCC):** 4.75V to 5.25V  
- **Logic Type:** Synchronous 4-Bit Binary Counter  
- **Output Type:** Standard (TTL-Compatible)  
- **Number of Pins:** 14  

### **Descriptions:**
- The SNJ54LS197J is a high-speed synchronous 4-bit binary counter with direct clear.  
- It is designed for military and aerospace applications due to its rugged ceramic package and extended temperature range.  
- The device operates as a counter or a storage register, depending on the control inputs.  
- It features a synchronous count function, allowing for predictable timing in digital systems.  

### **Features:**
- **Synchronous Counting:** Ensures all flip-flops change state simultaneously.  
- **Direct Clear Input:** Asynchronous reset capability.  
- **Parallel Load Capability:** Allows presetting the counter to a specific value.  
- **High-Speed Operation:** Typical propagation delay of 15 ns.  
- **Low Power Consumption:** LS technology ensures reduced power usage compared to standard TTL.  
- **Military-Grade Reliability:** Qualified for harsh environments.  

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

Application Scenarios & Design Considerations

50/30/100-MHZ PRESETTABLE DECADE OR BINARY COUNTERS/LATCHES

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