SN74HC244MDWREP

Product Overview

• Category: Integrated Circuit
• Use: Buffer/Line Driver
• Characteristics: High-speed, CMOS technology
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Logic Level Shifter
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V to VCC
• Low-Level Input Voltage: GND to 0.8V
• High-Level Output Voltage: VCC - 0.5V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 80 MHz
• Number of Channels: 8
• Input/Output Type: Non-Inverting
• Propagation Delay Time: 10 ns (typical)

Detailed Pin Configuration

The SN74HC244MDWREP has a total of 20 pins, which are arranged as follows:

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

Functional Features

The SN74HC244MDWREP is a high-speed CMOS buffer/line driver that operates at a wide supply voltage range of 2V to 6V. It features non-inverting inputs and outputs, making it suitable for various digital logic applications. The device has eight channels, each capable of driving up to 10mA of current.

One of the key functional features of this IC is its logic level shifting capability. It allows interfacing between devices operating at different voltage levels, ensuring proper signal transmission without any loss or distortion. The input/output voltage levels are compatible with both TTL and CMOS logic families.

Advantages and Disadvantages

Advantages: - High-speed operation - Wide supply voltage range - Non-inverting inputs and outputs - Logic level shifting capability - Compatibility with TTL and CMOS logic families

Disadvantages: - Limited number of channels (8) - Propagation delay time may affect timing-sensitive applications

Working Principles

The SN74HC244MDWREP works by receiving digital input signals on its eight input pins (A1-A8). These signals are then amplified and buffered internally before being transmitted to the corresponding output pins (Y1-Y8). The output enable pin (OE) controls the state of the outputs, allowing them to be enabled or disabled as required.

The logic level shifting feature ensures that the input signals can be safely translated to the desired output voltage levels, even when interfacing with devices operating at different voltage levels. This makes the SN74HC244MDWREP suitable for use in mixed-voltage systems.

Detailed Application Field Plans

The SN74HC244MDWREP finds applications in various digital systems, including:

1. Microcontrollers and microprocessors
2. Communication systems
3. Data acquisition systems
4. Industrial automation
5. Robotics
6. Automotive electronics
7. Consumer electronics
8. Test and measurement equipment

In these applications, the IC is used to buffer and drive signals between different sections of the system, ensuring proper signal integrity and voltage level compatibility.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the SN74HC244MDWREP include:

1. 74HCT244: This model operates at a lower supply voltage range (4.5V to 5.5V) but provides compatibility with TTL logic levels.
2. CD74HC244: Similar to the SN74HC244MDWREP, this model operates at a wide supply voltage range (2V to 6V) and offers high-speed operation.
3. MC74HC244: This model is part of the Motorola HC