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SN75ALS191DRG4 from TI,Texas Instruments

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SN75ALS191DRG4

Manufacturer: TI

Dual Differential Line Driver 8-SOIC 0 to 70

Partnumber Manufacturer Quantity Availability
SN75ALS191DRG4 TI 5000 In Stock

Description and Introduction

Dual Differential Line Driver 8-SOIC 0 to 70 The SN75ALS191DRG4 is a high-speed, low-power 4-bit synchronous up/down binary counter manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Synchronous Up/Down Binary Counter  
- **Number of Bits:** 4  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** SOIC-16  
- **Mounting Type:** Surface Mount  
- **Output Type:** Tri-State  
- **Clock Frequency:** High-speed operation (exact frequency depends on conditions)  
- **Propagation Delay:** Low propagation delay for fast counting  

### **Descriptions:**  
- The SN75ALS191DRG4 is designed for applications requiring synchronous counting with up/down control.  
- It features parallel load capability, allowing preset values to be loaded into the counter.  
- The tri-state outputs facilitate bus-oriented systems.  

### **Features:**  
- Synchronous counting operation  
- Up/Down counting control  
- Parallel load input for preset values  
- Tri-state outputs for bus interfacing  
- Low power consumption  
- High-speed performance  

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

Application Scenarios & Design Considerations

Dual Differential Line Driver 8-SOIC 0 to 70

Alternative Part Number

  • DS8921AM/NOPB --: Differential line driver in the same RS-422/RS-485 class with similar drive characteristics, available in SOIC package and widely used as a functional substitute.
  • MAX490ESA+ --: Low-power RS-485/RS-422 transceiver with comparable data rate and supply range, pin-compatible footprint in SOIC, suitable drop-in alternative.
  • SN75176BDR --: Industry-standard RS-485 differential bus transceiver from a different series, same SOIC-8 footprint and similar electrical behavior for most applications.

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