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CD54HCT688F from HARRIS,Intersil

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CD54HCT688F

Manufacturer: HARRIS

High Speed CMOS Logic 8-Bit Magnitude Comparator

Partnumber Manufacturer Quantity Availability
CD54HCT688F HARRIS 26 In Stock

Description and Introduction

High Speed CMOS Logic 8-Bit Magnitude Comparator The CD54HCT688F is a high-speed CMOS 8-bit magnitude comparator manufactured by HARRIS.  

### Key Specifications:  
- **Logic Family**: HCT (High-Speed CMOS, TTL compatible)  
- **Number of Bits**: 8  
- **Function**: Magnitude comparator (compares two 8-bit words)  
- **Output Type**: Active-low (open-drain or totem-pole, depending on variant)  
- **Supply Voltage (VCC)**: 4.5V to 5.5V  
- **Operating Temperature Range**: -55°C to +125°C (military-grade)  
- **Package**: Ceramic Flatpack (F package)  
- **Propagation Delay**: Typically 23ns (at 5V)  
- **Input Current (Max)**: ±1µA (HCT input leakage)  
- **Output Current (Max)**: 4mA (low state), 5.2mA (high state)  

### Features:  
- TTL-compatible inputs  
- Low power consumption  
- High noise immunity  
- Latch-up performance exceeds 250mA  

### Applications:  
- Digital arithmetic circuits  
- Microprocessor-based systems  
- Control logic  

Note: The CD54HCT688F is an older military-grade part, and availability may be limited. For exact pinout and detailed electrical characteristics, refer to the original HARRIS datasheet.

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