SN74ABTH245DGVRE4

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter and Bus Transceiver
• Characteristics: High-speed, bidirectional, voltage-level translation
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Translates signals between different voltage levels in digital systems
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2.3V to 3.6V
• Logic Voltage Levels: 1.5V to 3.6V
• Input/Output Compatibility: TTL, CMOS
• Number of Channels: 8
• Data Rate: Up to 400 Mbps
• Propagation Delay: 3.5 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74ABTH245DGVRE4 has a total of 20 pins, which are assigned as follows:

1. OE (Output Enable) 1
2. A1 (Data Input/Output) 1
3. B1 (Data Input/Output) 1
4. A2 (Data Input/Output) 2
5. B2 (Data Input/Output) 2
6. A3 (Data Input/Output) 3
7. B3 (Data Input/Output) 3
8. GND (Ground)
9. B4 (Data Input/Output) 4
10. A4 (Data Input/Output) 4
11. B5 (Data Input/Output) 5
12. A5 (Data Input/Output) 5
13. B6 (Data Input/Output) 6
14. A6 (Data Input/Output) 6
15. B7 (Data Input/Output) 7
16. A7 (Data Input/Output) 7
17. VCC (Supply Voltage)
18. DIR (Direction Control)
19. OE (Output Enable) 2
20. B8 (Data Input/Output) 8

Functional Features

• Bidirectional voltage-level translation between two different voltage domains.
• Supports both TTL and CMOS logic voltage levels.
• High-speed operation with a data rate of up to 400 Mbps.
• Low propagation delay ensures minimal signal distortion.

Advantages and Disadvantages

Advantages: - Enables seamless integration of components operating at different voltage levels. - Provides reliable signal translation in digital systems. - High-speed operation allows for efficient data transfer.

Disadvantages: - Limited to a maximum of 8 channels. - Requires careful consideration of power supply and ground connections.

Working Principles

The SN74ABTH245DGVRE4 is designed to translate signals between two different voltage domains in digital systems. It utilizes a bidirectional level-shifting mechanism to ensure compatibility between devices operating at different logic voltage levels. The direction control pin (DIR) determines the direction of data flow, while the output enable pins (OE) enable or disable the outputs. The integrated circuit operates by monitoring the input voltage levels and translating them to the corresponding output voltage levels, allowing seamless communication between devices with different voltage requirements.

Detailed Application Field Plans

The SN74ABTH245DGVRE4 finds applications in various digital systems where voltage-level translation is required. Some common application fields include:

1. Microcontroller interfacing with peripherals operating at different voltage levels.
2. Communication interfaces between different logic families, such as TTL and CMOS.
3. Level shifting in memory modules and data buses.
4. Signal translation in mixed-voltage systems, such as automotive electronics.
5. Interface conversion in industrial automation and control systems.

Detailed and Complete Alternative Models

1. SN74LVC245A: Low Voltage CMOS Octal Bus Transceiver
2. SN74LVCH245A: Low Voltage CMOS Octal Bus Transceiver with 3-State Outputs
3. SN74HCT245: High-Speed CMOS Octal Bus Transceiver

These alternative models offer similar functionality and can be considered as alternatives to the SN74ABTH245DGVRE4 based on specific application requirements.

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