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74F543N Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
74F543NSIGNETIC117Yes

74F543N** is a high-speed octal transparent latch with 3-state outputs, manufactured by **Signetics**.

The 74F543N is a high-speed octal transparent latch with 3-state outputs, manufactured by Signetics.

Key Specifications:

  • Logic Family: 74F (Fast TTL)
  • Function: Octal Transparent Latch with 3-State Outputs
  • Number of Bits: 8 (Octal)
  • Output Type: 3-State (High, Low, High-Z)
  • Operating Voltage: 5V (±10%)
  • Propagation Delay: Typically 6.5 ns (max 10 ns)
  • Operating Temperature Range: 0°C to +70°C (Commercial)
  • Package Type: DIP (Dual In-line Package)
  • Pin Count: 20

Features:

  • Transparent Latching: Data passes through when the latch enable (LE) is high.
  • 3-State Outputs: Allows direct connection to a bus system.
  • Output Enable Control: Two active-low output enable (OE) pins for independent control.
  • High-Speed Operation: Optimized for fast data transfer.
  • TTL-Compatible Inputs/Outputs: Ensures compatibility with standard TTL logic levels.

Applications:

  • Bus interface buffering
  • Data storage and transfer
  • Memory address latching
  • General-purpose digital logic

This IC is commonly used in microprocessor and microcontroller systems for temporary data storage and bus interfacing.

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