SN74HC244DBRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: High-Speed, Non-Inverting, 3-State Output
• Package: SOIC-20
• Essence: Logic Level Translation and Signal Amplification
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 80 MHz
• Number of Channels: 8
• Output Current: ±6mA
• Propagation Delay Time: 9 ns
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74HC244DBRG4 has a total of 20 pins. The pin configuration is as follows:

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

Functional Features

• Non-Inverting Buffer/Line Driver: The SN74HC244DBRG4 provides non-inverting logic level translation and signal amplification.
• 3-State Outputs: The outputs can be put into a high-impedance state, allowing multiple devices to share the same bus without interference.
• High-Speed Operation: With a maximum operating frequency of 80 MHz, it is suitable for applications requiring fast data transfer.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer. - Non-inverting buffer preserves signal integrity. - 3-state outputs enable bus sharing.

Disadvantages: - Limited output current may not be suitable for driving heavy loads. - Restricted supply voltage range may limit compatibility with certain systems.

Working Principles

The SN74HC244DBRG4 is a logic level translator and signal amplifier. It takes input signals from the A1-A7 pins and provides amplified, non-inverted outputs on the Y1-Y8 pins. The OE (Output Enable) pins control the state of the outputs. When OE is low, the outputs are active; when OE is high, the outputs enter a high-impedance state.

Detailed Application Field Plans

The SN74HC244DBRG4 is commonly used in various applications, including:

1. Microcontroller Interfacing: It can be used to interface microcontrollers with other devices operating at different logic levels.
2. Data Communication: It is suitable for buffering and amplifying signals in communication systems, such as UART, SPI, and I2C.
3. Memory Systems: It can be used in memory address decoding circuits and data buses.
4. Industrial Automation: The IC finds application in industrial control systems, PLCs, and motor control circuits.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the SN74HC244DBRG4 include:

1. SN74HCT244: This model operates at a wider supply voltage range of 4.5V to 5.5V.
2. SN74LVC244A: It offers lower power consumption and supports a wider operating temperature range (-40°C to +125°C).
3. MC74HC244AN: This model comes in a DIP package, making it suitable for through-hole soldering.

These alternative models can be considered based on specific requirements and compatibility with the target system.

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