Encyclopedia Entry: 74FCT244CTQG

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: High-speed, low-power, non-inverting, tri-state output
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: The 74FCT244CTQG is a high-performance octal buffer/line driver designed for use in various digital systems.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 3.5ns (typical)
• Output Drive Capability: ±24mA

Detailed Pin Configuration

The 74FCT244CTQG has a total of 20 pins, which are arranged as follows:

___________ OE --| |-- VCC A1 --| |-- B1 A2 --| |-- B2 A3 --| |-- B3 A4 --| |-- B4 A5 --| |-- B5 A6 --| |-- B6 A7 --| |-- B7 GND --| |-- B8 |___________|

Functional Features

• Non-Inverting Buffer: The 74FCT244CTQG provides non-inverting functionality, meaning the output signal replicates the input signal without any phase inversion.
• Tri-State Output: The device offers a tri-state output, allowing the output to be effectively disconnected from the rest of the circuit when not in use.
• High-Speed Operation: With a propagation delay time of 3.5ns, the IC ensures fast signal transmission and response times.
• Low Power Consumption: The 74FCT244CTQG is designed to operate with low power consumption, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer. - Non-inverting functionality simplifies circuit design. - Tri-state output allows for bus sharing and reduces conflicts. - Low power consumption prolongs battery life in portable applications.

Disadvantages: - Limited voltage range (4.5V to 5.5V) may restrict compatibility with certain systems. - Propagation delay time may cause timing issues in critical applications.

Working Principles

The 74FCT244CTQG operates by receiving digital input signals on its eight input pins (A1-A7). These signals are then buffered and amplified internally before being transmitted to the corresponding output pins (B1-B8). The tri-state output feature allows the device to disconnect the outputs from the circuit when the Output Enable (OE) pin is set to a high logic level, preventing any interference or contention on the bus.

Detailed Application Field Plans

The 74FCT244CTQG finds application in various digital systems, including but not limited to: - Microprocessors and microcontrollers - Memory modules - Data communication systems - Industrial automation equipment - Automotive electronics

Alternative Models

• SN74LV244A: Low-voltage octal buffer/line driver with similar functionality.
• MC74ACT244: Octal non-inverting buffer/line driver with faster propagation delay time.
• CD74HCT244: Octal buffer/line driver compatible with higher voltage levels.

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