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M74HC85M1R from STM,ST Microelectronics

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M74HC85M1R

Manufacturer: STM, ST

4-BIT MAGNITUDE COMPARATOR

Partnumber Manufacturer Quantity Availability
M74HC85M1R STM, ST 7600 In Stock

Description and Introduction

4-BIT MAGNITUDE COMPARATOR The M74HC85M1R is a 4-bit magnitude comparator from STMicroelectronics. It is part of the HC family, which operates at high speed with low power consumption.  

### **Manufacturer Specifications:**  
- **Logic Family:** HC  
- **Technology:** CMOS  
- **Supply Voltage Range:** 2V to 6V  
- **Operating Temperature Range:** -55°C to +125°C  
- **Package Type:** SO-16  
- **Number of Bits:** 4  
- **Propagation Delay:** Typically 25ns at 5V  
- **Input Current:** ±1µA (max)  
- **Output Current:** ±5.2mA (max)  

### **Descriptions:**  
The M74HC85M1R compares two 4-bit binary numbers (A and B) and provides three outputs indicating whether A > B, A < B, or A = B. It also has cascading inputs for expanding comparisons to larger word lengths.  

### **Features:**  
- **High-Speed Operation:** Suitable for fast comparison tasks.  
- **Low Power Consumption:** CMOS technology ensures efficient power usage.  
- **Wide Operating Voltage:** Works from 2V to 6V.  
- **Cascadable:** Can be used for larger bit comparisons.  
- **Schmitt Trigger Inputs:** Improves noise immunity.  
- **Balanced Propagation Delays:** Ensures consistent performance.  

This information is based on the manufacturer's datasheet. For detailed electrical characteristics, refer to the official documentation.

Application Scenarios & Design Considerations

4-BIT MAGNITUDE COMPARATOR

Alternative Part Number

  • CD74HC85M --: Pin-compatible 4-bit magnitude comparator in the same HC logic family with equivalent function and supply range, widely available from TI.
  • MC74HC85AD --: Direct functional equivalent 4-bit magnitude comparator in HC family, same SOIC package and logic behavior, good second source.
  • SN74HC85N --: Same 4-bit magnitude comparator function in HC family; DIP package option useful for prototyping, electrically compatible with the original.
  • MC74HC85DR2G --: Equivalent 4-bit magnitude comparator in HC family from an alternate manufacturer, suitable as a second-source option.
  • 74HC85D --: Standard 74HC85 4-bit magnitude comparator in SOIC package, direct functional equivalent with similar speed and drive.
  • MC74HC85ADG --: HC-family 4-bit magnitude comparator offering the same logic function and compatible electrical characteristics.

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