MM74HCT244WM

Product Overview

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

Specifications

• Supply Voltage: 2V to 6V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Maximum Operating Frequency: 25 MHz
• Number of Channels: 8
• Input/Output Type: Non-Inverting
• Propagation Delay Time: 14 ns (typical)

Pin Configuration

The MM74HCT244WM has a 20-pin SOIC package with the following pin configuration:

1. GND - Ground
2. A1 - Input 1
3. B1 - Output 1
4. A2 - Input 2
5. B2 - Output 2
6. A3 - Input 3
7. B3 - Output 3
8. A4 - Input 4
9. B4 - Output 4
10. OE - Output Enable
11. B5 - Output 5
12. A5 - Input 5
13. B6 - Output 6
14. A6 - Input 6
15. B7 - Output 7
16. A7 - Input 7
17. B8 - Output 8
18. A8 - Input 8
19. VCC - Power Supply
20. GND - Ground

Functional Features

• The MM74HCT244WM is designed to provide high-speed logic level shifting capabilities.
• It operates on CMOS technology, allowing for low power consumption and compatibility with a wide range of devices.
• The non-inverting input/output type ensures that the signal polarity remains unchanged during shifting.

Advantages and Disadvantages

Advantages: - High-speed operation - Low power consumption - Wide supply voltage range - Non-inverting input/output type

Disadvantages: - Limited maximum operating frequency (25 MHz) - Only 8 channels available

Working Principles

The MM74HCT244WM works by receiving logic level signals on its input pins (A1-A8) and shifting them to the corresponding output pins (B1-B8). The Output Enable (OE) pin controls the output state, allowing the user to enable or disable the outputs as needed. The CMOS technology used in the IC ensures efficient operation and low power consumption.

Detailed Application Field Plans

The MM74HCT244WM is commonly used in various applications, including:

1. Microcontroller interfacing: It can be used to interface microcontrollers with devices operating at different logic levels.
2. Level shifting: It enables communication between devices with different voltage requirements.
3. Signal buffering: It provides signal amplification and isolation, ensuring reliable transmission between different parts of a circuit.
4. Data transmission: It facilitates the transfer of data between different systems or subsystems.

Detailed and Complete Alternative Models

1. SN74HCT244N: This is a similar logic level shifter from Texas Instruments, offering comparable specifications and features.
2. CD74HCT244E: Another alternative from Texas Instruments, providing similar functionality and performance.
3. 74HCT244D: This model from NXP Semiconductors offers equivalent characteristics and pin configuration.

These alternative models can be considered based on availability, pricing, and specific project requirements.

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