MM74HC244SJX

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics:
  • High-Speed CMOS Logic
  • Octal 3-State Non-Inverting Buffer/Line Driver
  • Wide Operating Voltage Range: 2V to 6V
  • High Output Current: ±35mA
  • 3-State Outputs for Bus-Oriented Applications
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The MM74HC244SJX is a high-speed CMOS logic IC that serves as an octal 3-state non-inverting buffer/line driver. It is commonly used in bus-oriented applications where multiple devices need to communicate with each other.
• Packaging/Quantity: The MM74HC244SJX is typically available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 10ns (max) at 5V supply voltage
• Output Current: ±35mA (max)

Pin Configuration

The MM74HC244SJX has a total of 20 pins, which are arranged as follows:

+---+--+---+ A1 -|1 +--+ 20|- VCC A2 -|2 |- B1 A3 -|3 |- B2 A4 -|4 |- B3 A5 -|5 |- B4 A6 -|6 |- B5 A7 -|7 |- B6 A8 -|8 |- B7 GND -|9 |- B8 OE1 -|10 |- Y1 OE2 -|11 |- Y2 Y3 -|12 |- Y3 Y4 -|13 |- Y4 Y5 -|14 |- Y5 Y6 -|15 |- Y6 Y7 -|16 |- Y7 Y8 -|17 |- Y8 GND -|18 |- OE1 VCC -|19 |- OE2 +----------+

Functional Features

• The MM74HC244SJX is designed to provide non-inverting buffer/line driver functionality for bus-oriented applications.
• It features 3-state outputs, allowing multiple devices to share a common bus without interfering with each other.
• The high-speed CMOS logic ensures fast data transmission and reliable performance.
• The wide operating voltage range makes it compatible with various power supply configurations.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer. - 3-state outputs facilitate bus sharing among multiple devices. - Wide operating voltage range provides flexibility in power supply options.

Disadvantages: - Limited output current may not be suitable for high-power applications. - Requires careful consideration of input and output voltage levels to ensure proper functioning.

Working Principles

The MM74HC244SJX operates based on CMOS (Complementary Metal-Oxide-Semiconductor) technology. It acts as a buffer/line driver by amplifying and transmitting digital signals between different components or devices. The 3-state outputs allow the IC to disconnect from the bus when not actively driving it, preventing signal interference.

Detailed Application Field Plans

The MM74HC244SJX finds applications in various fields, including:

1. Microcontroller Interfacing: It can be used to interface microcontrollers with external devices, such as sensors, actuators, or displays.
2. Data Communication Systems: The IC facilitates data transmission between different modules or subsystems in communication systems.
3. Industrial Automation: It is suitable for buffering and driving signals in industrial automation applications, where reliable and fast data transfer is crucial.
4. Embedded Systems: The MM74HC244SJX can be employed in embedded systems to enable communication between different components, such as microprocessors, memory units, and peripherals.

Detailed and Complete Alternative Models

• SN74HC244N: This is a similar octal buffer/line driver IC from Texas Instruments, offering comparable features and performance.
• CD74HC244E: Another alternative from Texas Instruments, providing non-inverting buffer/line driver functionality with 3-state outputs.
• MC74HC244AN: A compatible option from ON Semiconductor, designed for the same purpose with equivalent specifications.

These alternative models