SN74ALVTH16244VR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Driver
• Characteristics: High-speed, low-voltage, 16-bit bus transceiver
• Package: 48-pin Very Thin Quad Flat Package (VQFN)
• Essence: Transmits and receives data between two buses with different voltage levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Data Rate: 400Mbps

Detailed Pin Configuration

The SN74ALVTH16244VR has a total of 48 pins. The pin configuration is as follows:

1. OE1 (Output Enable Input 1)
2. A1-A8 (Data Inputs/Outputs)
3. GND (Ground)
4. B1-B8 (Data Inputs/Outputs)
5. VCC (Power Supply)
6. OE2 (Output Enable Input 2)
7. Y1-Y8 (Data Outputs)
8. GND (Ground)
9. Y9-Y16 (Data Outputs)
10. VCC (Power Supply)
11. GND (Ground)
12. Y17-Y24 (Data Outputs)
13. VCC (Power Supply)
14. GND (Ground)
15. Y25-Y32 (Data Outputs)
16. VCC (Power Supply)
17. GND (Ground)
18. Y33-Y40 (Data Outputs)
19. VCC (Power Supply)
20. GND (Ground)
21. Y41-Y48 (Data Outputs)

Functional Features

• Bidirectional data flow between two buses with different voltage levels
• High-speed operation, suitable for applications requiring fast data transmission
• Low-voltage operation, compatible with various low-power systems
• Output enable control for flexible data transmission control

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Low-voltage operation reduces power consumption - Bidirectional functionality simplifies system design

Disadvantages: - Limited maximum data rate compared to some other ICs - Requires careful consideration of voltage compatibility between buses

Working Principles

The SN74ALVTH16244VR is a 16-bit bus transceiver that enables bidirectional data transfer between two buses operating at different voltage levels. It uses a combination of input/output buffers and level shifters to ensure proper signal translation.

When the output enable (OE) inputs are active, the device allows bidirectional data flow between the A and B buses. The direction of data transmission is determined by the logic levels on the OE1 and OE2 inputs.

The device operates within a specified supply voltage range and translates the logic levels of the A bus to match the voltage levels of the B bus. This ensures seamless communication between the two buses while maintaining compatibility with their respective voltage requirements.

Detailed Application Field Plans

The SN74ALVTH16244VR is commonly used in various applications where data needs to be transmitted between buses operating at different voltage levels. Some typical application fields include:

1. Microcontroller interfacing: The IC can be used to interface microcontrollers operating at different voltage levels, enabling seamless communication between them.
2. Memory modules: It can be employed in memory modules to facilitate data transfer between different memory banks or modules operating at different voltages.
3. Communication systems: The IC can be utilized in communication systems to connect different subsystems operating at different voltage levels, ensuring reliable data transmission.

Detailed and Complete Alternative Models

1. SN74ALVTH16244DLR: Similar to SN74ALVTH16244VR, but available in a different package (56-pin TSSOP).
2. SN74LVC16244ADGGR: 16-bit bus transceiver with similar characteristics, but operates at a higher voltage range (1.65V to 3.6V).
3. SN74LVCH16244ADGVR: Another alternative with comparable features, but designed for lower voltage applications (1.2V to 3.6V).

These alternative models offer similar functionality and can be considered as substitutes depending on specific requirements and availability.

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