SN74AHCT244DGVR

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics:
  • High-speed CMOS technology
  • Low power consumption
  • Wide operating voltage range
  • Schmitt-trigger inputs for noise immunity
• Package: TSSOP-20
• Essence: Octal buffer/line driver with 3-state outputs
• Packaging/Quantity: Tape and Reel, 2500 pieces 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
• Output Drive Capability: ±24mA at 3.3V
• Propagation Delay Time: 6ns (typical)
• Maximum Quiescent Current: 8µA at 5.5V

Detailed Pin Configuration

1. GND (Ground)
2. A1 (Input)
3. Y1 (Output)
4. A2 (Input)
5. Y2 (Output)
6. A3 (Input)
7. Y3 (Output)
8. A4 (Input)
9. Y4 (Output)
10. A5 (Input)
11. Y5 (Output)
12. A6 (Input)
13. Y6 (Output)
14. A7 (Input)
15. Y7 (Output)
16. A8 (Input)
17. Y8 (Output)
18. OE (Output Enable)
19. VCC (Supply Voltage)
20. GND (Ground)

Functional Features

• Octal buffer/line driver with 3-state outputs
• Non-inverting outputs
• High output drive capability
• Schmitt-trigger inputs for improved noise immunity
• 3-state outputs allow multiple devices to share a bus

Advantages and Disadvantages

Advantages

• High-speed operation suitable for time-critical applications
• Low power consumption extends battery life in portable devices
• Wide operating voltage range allows compatibility with various systems
• Schmitt-trigger inputs provide robustness against noise

Disadvantages

• Limited output drive capability compared to some other ICs
• Relatively higher propagation delay compared to certain specialized buffers

Working Principles

The SN74AHCT244DGVR is an octal buffer/line driver that amplifies and buffers digital signals. It accepts logic-level inputs and provides non-inverting outputs. The device operates using high-speed CMOS technology, allowing for fast signal propagation. The Schmitt-trigger inputs ensure reliable operation even in the presence of noise.

The 3-state outputs enable multiple devices to be connected to a common bus, allowing for efficient communication between different components. When the output enable (OE) pin is low, the outputs are active and reflect the input signals. When OE is high, the outputs are in a high-impedance state, effectively disconnecting them from the bus.

Detailed Application Field Plans

The SN74AHCT244DGVR is widely used in various applications, including: 1. Data communication systems 2. Microprocessor-based systems 3. Industrial automation 4. Automotive electronics 5. Consumer electronics 6. Networking equipment

In data communication systems, this IC is commonly used to amplify and buffer signals between different components, ensuring reliable data transmission. In microprocessor-based systems, it helps interface between the microprocessor and other peripherals. In industrial automation and automotive electronics, it facilitates signal conditioning and level shifting. In consumer electronics and networking equipment, it aids in signal buffering and line driving.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to SN74AHCT244DGVR are: 1. SN74LVC244A: Low-voltage CMOS octal buffer/line driver with 3-state outputs 2. SN74HCT244: High-speed CMOS octal buffer/line driver with 3-state outputs 3. MC74ACT244: Advanced CMOS octal buffer/line driver with 3-state outputs

These alternative models offer similar functionality and characteristics, but may have different specifications and package options. It is important to review the datasheets of these alternatives to determine their suitability for specific applications.

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