SN74LVTH244ADWRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: Low Voltage, High-Speed, Tri-State Outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Logic Level Shifter
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.7V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Number of Channels: 8
• Output Current: ±12mA
• Propagation Delay Time: 2.5ns (typical)
• Output Type: 3-State

Detailed Pin Configuration

The SN74LVTH244ADWRG4 has a total of 20 pins, which are assigned as follows:

1. OE (Output Enable) 1
2. A1 (Input) 1
3. I/O1 (Bidirectional) 1
4. GND (Ground)
5. I/O2 (Bidirectional) 2
6. A2 (Input) 2
7. OE (Output Enable) 2
8. VCC (Supply Voltage)
9. I/O3 (Bidirectional) 3
10. A3 (Input) 3
11. I/O4 (Bidirectional) 4
12. A4 (Input) 4
13. OE (Output Enable) 3
14. I/O5 (Bidirectional) 5
15. A5 (Input) 5
16. I/O6 (Bidirectional) 6
17. A6 (Input) 6
18. OE (Output Enable) 4
19. I/O7 (Bidirectional) 7
20. A7 (Input) 7

Functional Features

• Tri-State Outputs: The SN74LVTH244ADWRG4 features tri-state outputs, allowing the device to be effectively disconnected from the bus when not in use.
• Low Voltage Operation: With a supply voltage range of 2.7V to 3.6V, this IC is suitable for low-power applications.
• High-Speed Operation: The propagation delay time of 2.5ns ensures fast data transmission.
• Bidirectional Inputs/Outputs: The bidirectional I/O pins allow data to be transmitted in both directions.

Advantages and Disadvantages

Advantages: - Tri-state outputs provide flexibility in bus sharing applications. - Low voltage operation reduces power consumption. - High-speed operation enables efficient data transfer.

Disadvantages: - Limited output current may restrict its use in certain high-current applications. - The package size may not be suitable for space-constrained designs.

Working Principles

The SN74LVTH244ADWRG4 is a logic level shifter that allows for bidirectional voltage translation between different voltage domains. It operates by receiving input signals from one voltage domain and translating them to the appropriate voltage levels of another domain. The tri-state outputs enable the device to be effectively disconnected from the bus when the output is not required.

Detailed Application Field Plans

The SN74LVTH244ADWRG4 is commonly used in various applications, including:

1. Microcontroller Interfacing: It facilitates communication between microcontrollers operating at different voltage levels.
2. Memory Systems: It can be used to interface memory modules with different voltage requirements.
3. Communication Interfaces: The IC enables voltage level translation in serial communication interfaces such as UART, SPI, and I2C.
4. Industrial Automation: It finds applications in industrial control systems where different voltage domains need to be interconnected.

Detailed and Complete Alternative Models

1. SN74LVTH244A: Similar to SN74LVTH244ADWRG4, but available in a different package (TSSOP).
2. SN74LVC244A: A similar logic level shifter with lower supply voltage range (1.65V to 3.6V).
3. SN74HCT244: A TTL-compatible alternative with higher output current capability.

These alternative models offer similar functionality and can be considered based on specific design requirements.

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