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SN74HCT244 Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
SN74HCT244NXP5000Yes

Octal Buffers And Line Drivers With 3-State Outputs

The SN74HCT244 is an octal buffer and line driver manufactured by NXP.

Specifications:

  • Logic Type: Octal Buffer/Line Driver (3-State)
  • Technology: HCT (High-Speed CMOS, TTL-Compatible)
  • Number of Channels: 8
  • Output Type: 3-State
  • Supply Voltage Range (VCC): 4.5V to 5.5V
  • Input Voltage Range (VI): 0V to VCC
  • Output Current (IO): ±6mA
  • Propagation Delay (tpd): 13ns (typical at 5V)
  • Operating Temperature Range: -40°C to +85°C
  • Package Options: SO20, TSSOP20, DIP20

Descriptions:

The SN74HCT244 is designed for bus-oriented applications, providing high-speed, low-power buffering. It features two active-low output enables (OE1 and OE2) that control four buffers each, allowing for flexible bus management. The device is TTL-compatible, making it suitable for interfacing between CMOS and TTL logic levels.

Features:

  • 3-State Outputs: Allow direct connection to a bus-organized system.
  • TTL-Compatible Inputs: Can be driven by TTL or 5V CMOS signals.
  • Balanced Propagation Delays: Ensures consistent timing performance.
  • Wide Operating Voltage Range: Supports 4.5V to 5.5V operation.
  • Low Power Consumption: Typical ICC of 80µA.
  • High Noise Immunity: CMOS technology ensures robust performance.
  • ESD Protection: Exceeds 2000V (HBM) and 200V (MM).

This device is commonly used in digital systems for signal buffering, bus driving, and level translation.

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