SN74ABT245BRGYR

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter and Bus Transceiver
• Characteristics: High-speed, Bi-directional, Voltage-level Translation
• Package: 20-pin VQFN package
• Essence: Translates signals between different voltage levels in digital systems
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 3.8ns (typical)
• Output Drive Capability: ±24mA
• ESD Protection: >2000V (Human Body Model)

Detailed Pin Configuration

The SN74ABT245BRGYR has a total of 20 pins. The pin configuration is as follows:

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

Functional Features

• Bi-directional voltage-level translation between two different voltage domains
• High-speed operation with minimal propagation delay
• Output drive capability allows for driving capacitive loads and long traces
• Output enable control for disabling the outputs when not in use
• Direction control for controlling the data flow direction

Advantages and Disadvantages

Advantages: - Enables seamless communication between devices operating at different voltage levels - High-speed operation ensures efficient data transfer - Robust ESD protection for enhanced reliability - Flexible output drive capability for various applications

Disadvantages: - Requires careful consideration of voltage compatibility to avoid damage to connected devices - Limited to specific voltage ranges, may not be suitable for all voltage translation scenarios

Working Principles

The SN74ABT245BRGYR is a level shifter and bus transceiver that facilitates the translation of digital signals between two different voltage domains. It operates by receiving data from one side (Port A) and translating it to the voltage level compatible with the other side (Port B), or vice versa. The direction of data flow is controlled by the DIR pin. The OE pin enables or disables the outputs, allowing for efficient power management.

Detailed Application Field Plans

The SN74ABT245BRGYR finds applications in various fields where voltage-level translation is required. Some of the common application areas include:

1. Microcontroller interfacing with different voltage peripherals
2. Communication interfaces between devices operating at different voltage levels
3. Level shifting in industrial automation systems
4. Data transfer between mixed-voltage systems in automotive electronics
5. Interface translation in consumer electronics devices

Detailed and Complete Alternative Models

1. SN74LVC245APWR - Low Voltage CMOS Octal Bus Transceiver
2. SN74HCT245N - High-Speed CMOS Logic Octal Bus Transceiver
3. SN74LVCH245ADBR - Low-Voltage CMOS Octal Bus Transceiver with 3-State Outputs
4. SN74CBT3257CPW - Quad FET Bus Switch

These alternative models offer similar functionality and can be considered as alternatives to the SN74ABT245BRGYR based on specific requirements and voltage compatibility.

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