SN74CBT3245ADWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Switch
• Characteristics: High-speed, bidirectional, voltage-level translation
• Package: SOIC-24
• Essence: Transceiver
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2 V to 6 V
• High-Level Input Voltage: 2 V to VCC
• Low-Level Input Voltage: GND to 0.8 V
• High-Level Output Voltage: VCC - 0.4 V
• Low-Level Output Voltage: 0.4 V
• Maximum Operating Frequency: 100 MHz
• Number of Channels: 8
• On-State Resistance: 5 Ω
• ESD Protection: >2000 V

Detailed Pin Configuration

1. OE (Output Enable) - Active Low Output Enable
2. A1 - Channel Select Input
3. B1 - Channel Select Input
4. A2 - Channel Select Input
5. B2 - Channel Select Input
6. A3 - Channel Select Input
7. B3 - Channel Select Input
8. GND (Ground)
9. B4 - Channel Select Input
10. A4 - Channel Select Input
11. B5 - Channel Select Input
12. A5 - Channel Select Input
13. B6 - Channel Select Input
14. A6 - Channel Select Input
15. B7 - Channel Select Input
16. A7 - Channel Select Input
17. VCC (Supply Voltage)
18. B8 - Channel Select Input
19. A8 - Channel Select Input
20. Y7 - Data Output
21. Y6 - Data Output
22. Y5 - Data Output
23. Y4 - Data Output
24. Y3 - Data Output

Functional Features

• Bidirectional voltage-level translation between two independent buses
• Wide supply voltage range allows interfacing between different logic families
• Low on-state resistance minimizes signal distortion
• High-speed operation enables efficient data transfer
• Output enable pin provides control over the direction of data flow

Advantages and Disadvantages

Advantages

• Versatile voltage-level translation capability
• High-speed operation for efficient data transfer
• Wide supply voltage range for compatibility with various systems
• Compact SOIC-24 package for space-saving designs
• ESD protection ensures robustness against electrostatic discharge

Disadvantages

• Limited number of channels (8)
• Relatively high on-state resistance compared to some alternative models

Working Principles

The SN74CBT3245ADWR is a bidirectional digital switch that facilitates voltage-level translation between two independent buses. It operates by controlling the flow of data between the input/output pins (A1-A8, B1-B8) and the corresponding output/input pins (Y3-Y7). The channel select inputs (A1-A8, B1-B8) determine the direction of data transmission.

When the output enable (OE) pin is low, the switch is enabled, allowing data to pass between the buses. Conversely, when OE is high, the switch is disabled, isolating the buses from each other. This functionality enables bidirectional communication and voltage-level translation in various applications.

Detailed Application Field Plans

The SN74CBT3245ADWR finds application in numerous scenarios where voltage-level translation is required. Some common application fields include:

1. Microcontroller interfacing with different logic families
2. Communication systems involving multiple voltage domains
3. Data acquisition and processing systems
4. Industrial automation and control systems
5. Test and measurement equipment
6. Automotive electronics
7. Audio and video signal routing

Detailed and Complete Alternative Models

1. SN74CBT3253ADWR: Similar to SN74CBT3245ADWR but with 2-channel selection instead of 8.
2. SN74CBT16212ADGGR: 16-bit bidirectional switch with higher channel count.
3. SN74CBT3384ADW: 10-bit voltage-level translator with integrated ESD protection.

These alternative models offer varying features and specifications, allowing designers to choose the most suitable option for their specific application requirements.

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