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SN54191J from TI,Texas Instruments

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SN54191J

Manufacturer: TI

SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

Partnumber Manufacturer Quantity Availability
SN54191J TI 50 In Stock

Description and Introduction

SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL The SN54191J is a synchronous, reversible, up/down counter manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Synchronous 4-Bit Up/Down Counter  
- **Count Rate:** 20 MHz (typical)  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** -55°C to +125°C  
- **Package Type:** CDIP (Ceramic Dual In-Line Package)  
- **Number of Pins:** 16  
- **Output Type:** TTL (Transistor-Transistor Logic)  

### **Descriptions:**  
- The SN54191J is a 4-bit binary counter that can operate in both up-counting and down-counting modes.  
- It features synchronous counting, meaning the outputs change simultaneously with the clock input.  
- Includes parallel load capability for preset values.  
- Designed for military and industrial applications due to its wide temperature range.  

### **Features:**  
- **Synchronous Operation:** Clocked counting for precise timing.  
- **Up/Down Control:** Selectable count direction via a control pin.  
- **Parallel Load:** Allows loading preset data into the counter.  
- **Ripple Clock Output:** Used for cascading multiple counters.  
- **Asynchronous Clear:** Resets the counter independently of the clock.  
- **High-Speed Operation:** Suitable for fast counting applications.  

This device is part of TI's 5400 series, which is designed for rugged, high-reliability applications.

Application Scenarios & Design Considerations

SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

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