Encyclopedia Entry: 74ACQ244SCX

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: High-speed, low-power, non-inverting, tri-state output
• Package: Surface Mount Technology (SMT)
• Essence: The 74ACQ244SCX is a high-performance octal buffer/line driver designed for use in various digital applications.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Supply Voltage: 2V to 6V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Operating Temperature: -40°C to +85°C
• Propagation Delay: 5.5ns (typical)
• Output Current: ±24mA

Detailed Pin Configuration

The 74ACQ244SCX has a total of 20 pins, which are assigned as follows:

1. Pin 1: Output Enable (OE)
2. Pin 2: Input/Output (IO1)
3. Pin 3: Input/Output (IO2)
4. Pin 4: Input/Output (IO3)
5. Pin 5: Input/Output (IO4)
6. Pin 6: Input/Output (IO5)
7. Pin 7: Input/Output (IO6)
8. Pin 8: Input/Output (IO7)
9. Pin 9: Ground (GND)
10. Pin 10: Input/Output (IO8)
11. Pin 11: Supply Voltage (VCC)
12. Pin 12: Input/Output (IO9)
13. Pin 13: Input/Output (IO10)
14. Pin 14: Input/Output (IO11)
15. Pin 15: Input/Output (IO12)
16. Pin 16: Input/Output (IO13)
17. Pin 17: Input/Output (IO14)
18. Pin 18: Input/Output (IO15)
19. Pin 19: Input/Output (IO16)
20. Pin 20: Output Enable (OE)

Functional Features

• Non-inverting buffer/line driver with tri-state output
• High-speed operation suitable for various digital applications
• Low power consumption for energy-efficient designs
• Octal configuration provides multiple input/output channels
• Tri-state output allows for bus sharing and reduces contention issues

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer - Low power consumption helps in reducing overall system power requirements - Tri-state output facilitates bus sharing and minimizes conflicts - Octal configuration offers flexibility in connecting multiple devices

Disadvantages: - Limited voltage range (2V to 6V) may not be suitable for all applications - Propagation delay of 5.5ns may impact timing-sensitive operations - Surface mount package may require specialized equipment for soldering and rework

Working Principles

The 74ACQ244SCX operates as a non-inverting buffer/line driver, which means that the input signal is reproduced at the output without any inversion. It features a tri-state output, allowing the device to be effectively disconnected from the bus when not in use.

When the Output Enable (OE) pin is low, the outputs are enabled and actively driven according to the input signals. Conversely, when the OE pin is high, the outputs are in a high-impedance state, effectively disconnecting them from the bus.

The IC operates within a specified voltage range (2V to 6V) and provides a high-speed operation with low power consumption.

Detailed Application Field Plans

The 74ACQ244SCX is commonly used in various digital applications, including:

1. Data communication systems
2. Microprocessor-based systems
3. Memory interfaces
4. Bus drivers
5. Address drivers
6. Clock distribution networks
7. General-purpose buffer applications

Its high-speed operation, low power consumption, and tri-state output make it suitable for applications that require efficient data transfer, bus sharing, and reduced power requirements.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74ACQ244SCX include:

1. SN74ACT244: Texas Instruments Octal Buffer/Line Driver
2. MC74AC244: ON Semiconductor Octal Buffer/Line Driver
3. CD74AC244: Texas Instruments CMOS Octal Buffer/Line Driver
4. 74HCT244: NXP Semiconductors Octal Buffer/Line Driver

These alternative models provide comparable features and can be considered as substitutes based on specific application requirements.

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