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74F640N Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
74F640NSIGNET121Yes

74F640N** is a high-speed, octal bus transceiver manufactured by **SIGNET**.

The 74F640N is a high-speed, octal bus transceiver manufactured by SIGNET.

Key Specifications:

  • Logic Family: 74F (Fast TTL)
  • Function: Octal Bus Transceiver with 3-State Outputs
  • Number of Channels: 8 (Octal)
  • Data Flow: Bidirectional (Direction controlled by DIR pin)
  • Output Type: 3-State (High, Low, High-Z)
  • Supply Voltage (VCC): 4.5V to 5.5V (Nominal 5V)
  • Operating Temperature Range: 0°C to +70°C (Commercial)
  • Package Type: DIP-20 (Dual In-line Package, 20 pins)
  • Propagation Delay: Typically 6ns (Fast operation)
  • Input/Output Compatibility: TTL-Level

Features:

  • Direction Control: DIR pin determines data flow (A to B or B to A)
  • Output Enable (OE): Active-low control for 3-state outputs
  • High-Speed Operation: Optimized for fast data transfer
  • Wide Operating Voltage: Supports standard 5V logic systems
  • TTL-Compatible Inputs/Outputs: Ensures compatibility with other TTL devices

Applications:

  • Data bus buffering and direction control
  • Bidirectional communication in microprocessor/microcontroller systems
  • High-speed logic interfacing

This part is designed for digital systems requiring bidirectional data flow with fast switching speeds.

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