M74HC244TTR

Product Overview

Category: Integrated Circuit (IC)

Use: The M74HC244TTR is a high-speed octal buffer/line driver with 3-state outputs. It is designed to be used as a voltage level translator or line driver in various digital applications.

Characteristics: - High-speed operation - 3-state outputs for bus-oriented applications - Wide operating voltage range - Low power consumption - Schmitt trigger inputs for noise immunity - Compatible with TTL and CMOS logic levels

Package: The M74HC244TTR is available in a small outline package (TSSOP) which provides compactness and ease of integration into electronic circuits.

Essence: The M74HC244TTR is an essential component in digital systems where voltage level translation or line driving is required. It ensures reliable signal transmission between different logic levels.

Packaging/Quantity: The M74HC244TTR is typically packaged in reels, containing a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: -0.5V to VCC + 0.5V
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 54 MHz
• Propagation Delay Time: 9 ns (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The M74HC244TTR has a total of 20 pins, which are assigned 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. GND (Ground)
11. Y5 (Output Y5)
12. A5 (Input A5)
13. Y6 (Output Y6)
14. A6 (Input A6)
15. Y7 (Output Y7)
16. A7 (Input A7)
17. Y8 (Output Y8)
18. VCC (Supply Voltage)
19. OE (Output Enable)
20. GND (Ground)

Functional Features

• High-speed operation allows for efficient data transmission.
• 3-state outputs enable bus-oriented applications, allowing multiple devices to share a common bus.
• Wide operating voltage range ensures compatibility with various digital systems.
• Schmitt trigger inputs provide noise immunity, enhancing signal integrity.

Advantages and Disadvantages

Advantages: - High-speed operation facilitates fast data transfer. - 3-state outputs allow for efficient bus sharing. - Wide operating voltage range provides flexibility in system design. - Low power consumption contributes to energy efficiency. - Schmitt trigger inputs enhance noise immunity, ensuring reliable signal transmission.

Disadvantages: - Limited maximum operating frequency compared to some other ICs. - Propagation delay time may affect timing-sensitive applications.

Working Principles

The M74HC244TTR operates by receiving input signals on its A1-A7 pins and providing corresponding output signals on the Y1-Y8 pins. The OE (Output Enable) pin controls the 3-state outputs, enabling or disabling them as required. When the OE pin is high, the outputs are active, and when it is low, the outputs are in a high-impedance state.

The IC utilizes internal circuitry to translate and amplify the input signals, ensuring proper voltage level translation and line driving capabilities.

Detailed Application Field Plans

The M74HC244TTR finds applications in various digital systems, including but not limited to: - Microcontrollers and microprocessors - Data communication systems - Industrial automation - Automotive electronics - Consumer electronics

In microcontroller-based systems, the M74HC244TTR can be used to interface between different logic levels, allowing seamless communication between components operating at different voltage levels.

In data communication systems, it can serve as a line driver, amplifying signals for long-distance transmission while maintaining signal integrity.

In industrial automation and automotive electronics, the IC can be employed for voltage level translation and buffering in control systems.

In consumer electronics, it can be utilized for level shifting and interfacing between different digital devices.

Detailed and Complete Alternative Models

• SN74HC244N: Similar octal buffer/line driver with 3-state outputs from Texas Instruments.
• CD74HC244E: Octal buffer/line driver with 3-state outputs from Texas Instruments.
• MC74HC244AN: Octal buffer/line driver with 3-state outputs from ON Semiconductor.

These alternative models offer similar functionality and can be considered as substitutes for the M