MM74C244WM

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: High-speed, non-inverting, tri-state output
• Package: 20-pin wide SOIC (Small Outline Integrated Circuit)
• Essence: Logic buffer with tri-state outputs
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage: 4.5V to 5.5V
• Input Voltage: 0V to Vcc
• Output Voltage: 0V to Vcc
• Operating Temperature: -40°C to +85°C
• Propagation Delay: 6ns (typical)
• Output Current: ±24mA

Detailed Pin Configuration

The MM74C244WM has a total of 20 pins, which are assigned as follows:

1. GND (Ground)
2. A1 (Input A1)
3. B1 (Input B1)
4. Y1 (Output Y1)
5. A2 (Input A2)
6. B2 (Input B2)
7. Y2 (Output Y2)
8. A3 (Input A3)
9. B3 (Input B3)
10. Y3 (Output Y3)
11. A4 (Input A4)
12. B4 (Input B4)
13. Y4 (Output Y4)
14. A5 (Input A5)
15. B5 (Input B5)
16. Y5 (Output Y5)
17. A6 (Input A6)
18. B6 (Input B6)
19. Y6 (Output Y6)
20. Vcc (Positive Power Supply)

Functional Features

• Non-inverting buffer with tri-state outputs
• High-speed operation suitable for various applications
• Wide operating voltage range
• Low power consumption
• ESD (Electrostatic Discharge) protection on all inputs and outputs

Advantages and Disadvantages

Advantages: - High-speed performance allows for efficient data transfer - Tri-state outputs provide flexibility in controlling bus lines - Wide operating voltage range enables compatibility with different systems - ESD protection ensures reliability in handling and usage

Disadvantages: - Limited number of buffer channels (6 in total) - Not suitable for applications requiring bidirectional communication

Working Principles

The MM74C244WM is a logic buffer IC that amplifies and transfers digital signals. It features non-inverting tri-state outputs, which means it can drive high or low signals without changing their logic levels. The tri-state outputs allow the IC to be connected to a common bus line, where multiple devices can share the same communication channel.

When the enable input (G) is high, the outputs (Y1-Y6) are active and reflect the input values (A1-A6, B1-B6). When the enable input is low, the outputs are in a high-impedance state, effectively disconnecting them from the bus line.

Detailed Application Field Plans

The MM74C244WM is commonly used in various digital systems and applications, including:

1. Microprocessor-based systems
2. Data communication networks
3. Memory interfaces
4. Industrial automation
5. Automotive electronics
6. Consumer electronics

Its ability to buffer and drive signals makes it suitable for applications where signal integrity, speed, and compatibility are crucial.

Detailed and Complete Alternative Models

1. SN74LS244N - Octal Buffers/Line Drivers with 3-State Outputs
2. CD74HC244E - High-Speed CMOS Logic Octal Buffer/Line Driver
3. 74HC244D - Octal Buffer/Line Driver with 3-State Outputs

These alternative models offer similar functionality and can be used as replacements for the MM74C244WM in various applications.

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