MM74HCT244MTCX

Overview

• Category: Integrated Circuit
• Use: Signal Buffer/Line Driver
• Characteristics: High-Speed, CMOS Logic, Octal Buffer/Line Driver
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Buffering and driving signals in electronic circuits
• 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
• High-Level Input Voltage: 2V to VCC
• Low-Level Input Voltage: 0V to 0.8V
• High-Level Output Voltage: VCC - 0.1V
• Low-Level Output Voltage: 0.1V
• Maximum Operating Frequency: 25MHz
• Maximum Propagation Delay: 18ns

Pin Configuration

The MM74HCT244MTCX has a total of 20 pins. The pin configuration is as follows:

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

Functional Features

• Octal buffer/line driver with 3-state outputs
• High-speed operation suitable for various applications
• CMOS logic technology provides low power consumption
• 3-state outputs allow multiple devices to share a common bus
• Schmitt trigger inputs ensure noise immunity and hysteresis

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient signal buffering - CMOS technology offers low power consumption - 3-state outputs facilitate bus sharing in complex systems - Schmitt trigger inputs provide noise immunity

Disadvantages: - Limited supply voltage range (4.5V to 5.5V) - Maximum operating frequency may not be sufficient for some high-speed applications

Working Principles

The MM74HCT244MTCX is an octal buffer/line driver integrated circuit. It operates by receiving input signals on the A1-A8 pins and amplifying them to drive corresponding output signals on the Y1-Y8 pins. The OE (Output Enable) pin controls the output state, allowing the device to be enabled or disabled.

When the OE pin is high, the outputs are active and reflect the input signals. When the OE pin is low, the outputs are in a high-impedance state, effectively disconnecting them from the circuit. This feature enables multiple devices to share a common bus without interfering with each other.

The CMOS logic technology used in the MM74HCT244MTCX ensures low power consumption while providing high-speed operation. The Schmitt trigger inputs enhance noise immunity by introducing hysteresis, making the device less susceptible to signal fluctuations and disturbances.

Detailed Application Field Plans

The MM74HCT244MTCX is widely used in various electronic applications that require signal buffering and driving. Some common application fields include:

1. Microcontroller Interfacing: The device can be used to interface microcontrollers with other peripheral devices, such as sensors, actuators, and displays. It ensures proper signal levels and protects the microcontroller from excessive current.

2. Data Communication: The MM74HCT244MTCX is suitable for data communication systems where multiple devices need to share a common bus. It enables efficient data transfer by buffering and driving signals between different components.

3. Industrial Automation: In industrial automation systems, the device can be employed to amplify and drive control signals for actuators, motors, and other industrial equipment. Its high-speed operation and noise immunity make it ideal for such applications.

4. Automotive Electronics: The MM74HCT244MTCX finds use in automotive electronics, particularly in vehicle control modules and communication networks. It helps ensure reliable signal transmission and protection against electrical noise.

Detailed and Complete Alternative Models

1. SN74HCT244N: This is a similar octal buffer/line driver IC from Texas Instruments. It has comparable specifications and pin configuration to the MM74HCT