SN74ABT646APWR

Product Overview

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

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• Input Voltage Range: 0 V to VCC
• Output Voltage Range: 0 V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 3.8 ns (typical)
• Maximum Operating Frequency: 200 MHz

Detailed Pin Configuration

The SN74ABT646APWR has a total of 24 pins. The pin configuration is as follows:

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

Functional Features

• Bidirectional voltage-level translation between two different voltage domains.
• Automatic direction control based on the DIR pin.
• Output enable control for disabling the outputs when not needed.
• High-speed operation with minimal propagation delay.
• Low power consumption.

Advantages and Disadvantages

Advantages: - Enables communication between devices operating at different voltage levels. - Supports bidirectional data transfer. - Provides automatic direction control. - High-speed operation allows for efficient data transmission.

Disadvantages: - Limited to a specific voltage range (2 V to 5.5 V). - Requires careful consideration of input and output voltage levels to prevent damage.

Working Principles

The SN74ABT646APWR is designed to translate signals between two different voltage domains in electronic systems. It uses a combination of level shifters and bus transceivers to achieve bidirectional data transfer. The DIR pin controls the direction of data flow, while the OE pins enable or disable the outputs. The integrated circuit operates at high speed with minimal propagation delay, ensuring efficient signal transmission.

Detailed Application Field Plans

The SN74ABT646APWR is commonly used in various applications, including:

1. Microcontroller interfacing: It enables communication between microcontrollers operating at different voltage levels.
2. Sensor networks: It facilitates data exchange between sensors and microcontrollers with varying voltage requirements.
3. Communication systems: It serves as a voltage-level translator in communication interfaces, such as UART, SPI, and I2C.
4. Industrial automation: It allows for seamless integration of devices with different voltage levels in industrial control systems.

Detailed and Complete Alternative Models

1. SN74ABT646ADW: Wide SOIC (Small Outline Integrated Circuit) package variant.
2. SN74ABT646ADB: SSOP (Shrink Small Outline Package) variant.
3. SN74ABT646ANSR: SOP (Small Outline Package) variant with smaller footprint.
4. SN74ABT646APW: PDIP (Plastic Dual In-Line Package) variant.

These alternative models offer similar functionality but differ in package type and pin configuration. Users can choose the most suitable model based on their specific requirements.

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