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The MM74HC05N is a hex inverter with open-drain outputs, manufactured by National Semiconductor (NS).

Specifications:

• Logic Family: HC (High-Speed CMOS)
• Number of Gates: 6 (Hex Inverter)
• Output Type: Open-Drain
• Supply Voltage (VCC): 2V to 6V
• High-Level Input Voltage (VIH): 3.15V (min) @ VCC = 4.5V
• Low-Level Input Voltage (VIL): 1.35V (max) @ VCC = 4.5V
• Operating Temperature Range: -40°C to +85°C
• Package: 14-Pin DIP (Dual In-Line Package)
• Propagation Delay: 15ns (typical) @ VCC = 4.5V

Descriptions:

The MM74HC05N is a high-speed CMOS logic device containing six independent inverters with open-drain outputs. It is designed for general-purpose logic applications where open-drain outputs are required, such as interfacing with different voltage levels or driving loads like LEDs and relays.

Features:

• Open-Drain Outputs: Allows wired-OR connections and easy interfacing with different voltage levels.
• Wide Operating Voltage Range: 2V to 6V.
• Low Power Consumption: CMOS technology ensures minimal power dissipation.
• High Noise Immunity: Typical of HC logic family.
• Compatible with TTL Levels: Can interface with TTL logic when operating at 5V.
• Schmitt Trigger Inputs: Not applicable (standard CMOS inputs).

This information is based on the manufacturer's datasheet for the MM74HC05N.