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DM74H55N Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
DM74H55NNS100Yes

DM74H55N is a high-speed TTL (Transistor-Transistor Logic) device manufactured by National Semiconductor (NS).

The DM74H55N is a high-speed TTL (Transistor-Transistor Logic) device manufactured by National Semiconductor (NS).

Specifications:

  • Logic Type: 2-Wide, 4-Input AND-OR-Invert Gate
  • Supply Voltage (VCC): 4.75V to 5.25V (Standard 5V TTL)
  • Operating Temperature Range: 0°C to +70°C
  • Propagation Delay: Typically 12ns (varies with conditions)
  • Power Dissipation: Typically 22mW per gate
  • Input Current (High): 40µA max
  • Input Current (Low): -1.6mA max
  • Output Current (High): -800µA max
  • Output Current (Low): 16mA max
  • Package Type: 14-Pin DIP (Dual In-line Package)

Descriptions:

The DM74H55N integrates a 2-wide, 4-input AND-OR-Invert (AOI) gate in a single IC. It performs the logical function:

Y = (A·B·C·D + E·F·G·H)'

where inputs A-D and E-H are grouped into two 4-input AND sections, followed by an OR and an inverter.

Features:

  • High-speed operation
  • TTL-compatible inputs and outputs
  • Standard 14-pin DIP package
  • Suitable for combinational logic applications

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

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