SN74CB3Q3245DGVR

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter and Bus Switch
• Characteristics: High-Speed, Low-Power, Bidirectional Voltage Translation
• Package: VSSOP (Very Small Outline Package)
• Essence: Voltage Translator and Multiplexer/Demultiplexer
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Input Voltage Range: 0V to VCCA + 0.5V
• Output Voltage Range: 0V to VCCB + 0.5V
• Maximum Data Rate: 400 Mbps
• Low ON-State Resistance: 4.5Ω (typical) at 3.3V
• Low Power Consumption: ICC = 2µA (maximum) in Shutdown Mode

Detailed Pin Configuration

The SN74CB3Q3245DGVR has a total of 24 pins. The pin configuration is as follows:

1. OE (Output Enable) - Active LOW enable input
2. A1 - Select input for multiplexer/demultiplexer
3. B1 - Select input for multiplexer/demultiplexer
4. A2 - Select input for multiplexer/demultiplexer
5. B2 - Select input for multiplexer/demultiplexer
6. A3 - Select input for multiplexer/demultiplexer
7. B3 - Select input for multiplexer/demultiplexer
8. GND (Ground) - Ground reference
9. I/O1A - Bidirectional data I/O channel 1
10. I/O1B - Bidirectional data I/O channel 1
11. VCCA - Supply voltage for channel 1
12. VCCB - Supply voltage for channel 2
13. I/O2A - Bidirectional data I/O channel 2
14. I/O2B - Bidirectional data I/O channel 2
15. A4 - Select input for multiplexer/demultiplexer
16. B4 - Select input for multiplexer/demultiplexer
17. A5 - Select input for multiplexer/demultiplexer
18. B5 - Select input for multiplexer/demultiplexer
19. A6 - Select input for multiplexer/demultiplexer
20. B6 - Select input for multiplexer/demultiplexer
21. VREF - Reference voltage for level shifting
22. GND (Ground) - Ground reference
23. OE (Output Enable) - Active LOW enable input
24. VCC - Positive supply voltage

Functional Features

• Bidirectional Voltage Translation: Allows seamless translation between two different voltage domains.
• Level Shifting: Enables interfacing between devices operating at different voltage levels.
• Bus Switching: Facilitates the connection and disconnection of multiple devices to a common bus.

Advantages and Disadvantages

Advantages: - High-Speed Operation: Supports data rates up to 400 Mbps, ensuring efficient signal transmission. - Low Power Consumption: Consumes minimal power, making it suitable for battery-powered applications. - Small Package Size: The VSSOP package offers a compact form factor, saving board space.

Disadvantages: - Limited Voltage Range: The supply voltage range is restricted to 1.65V to 3.6V, limiting compatibility with lower or higher voltage systems. - Output Voltage Limitation: The output voltage range is constrained to 0V to VCCB + 0.5V, which may not be suitable for certain applications requiring wider voltage ranges.

Working Principles

The SN74CB3Q3245DGVR utilizes a combination of MOSFETs and control logic to achieve bidirectional voltage translation. The control inputs (A1-B6) determine the direction of data flow and the level of voltage translation. When the OE (Output Enable) input is LOW, the device is enabled, allowing data transmission between the two voltage domains. In the disabled state, the device isolates the two domains, preventing any signal interference.

Detailed Application Field Plans

The SN74CB3Q3245DGVR finds applications in various fields, including:

1. Consumer Electronics: Enables communication between devices operating at different voltage levels, such as smartphones, tablets, and gaming consoles.
2. Industrial Automation: Facilitates interfacing between control systems and sensors/actuators with varying voltage requirements.
3. Automotive Electronics: Supports voltage translation between different subsystems within vehicles, ensuring seamless communication.
4. IoT (Internet of Things): Enables connectivity between low-power devices operating at different voltage levels, enhancing interoperability.
5. Telecommunications: Facilitates voltage translation in networking equipment, allowing for efficient data transfer between different components.

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