SN74ABT620DBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Buffer/Line Driver
• Characteristics: High-speed, low-power, 3-state outputs
• Package: SSOP-20
• Essence: Buffering and driving digital signals
• 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: 2.8ns (typical)
• Output Current: ±24mA
• Input Capacitance: 4pF (typical)

Detailed Pin Configuration

The SN74ABT620DBR has a total of 20 pins, which are assigned as follows:

1. OE (Output Enable) 1
2. A1 (Data Input) 1
3. B1 (Data Input) 1
4. GND (Ground)
5. B2 (Data Input) 2
6. A2 (Data Input) 2
7. OE (Output Enable) 2
8. Y1 (Data Output) 1
9. Y2 (Data Output) 2
10. VCC (Supply Voltage)
11. NC (No Connection)
12. Y3 (Data Output) 3
13. Y4 (Data Output) 4
14. OE (Output Enable) 3
15. A3 (Data Input) 3
16. B3 (Data Input) 3
17. GND (Ground)
18. B4 (Data Input) 4
19. A4 (Data Input) 4
20. OE (Output Enable) 4

Functional Features

• High-speed operation: The SN74ABT620DBR is designed to operate at high speeds, making it suitable for applications requiring fast signal buffering and driving.
• Low-power consumption: This IC is optimized for low power consumption, making it energy-efficient and suitable for battery-powered devices.
• 3-state outputs: The 3-state outputs allow the device to be connected to a bus or shared line without interfering with other devices on the same line.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient signal buffering and driving. - Low-power consumption makes it suitable for portable and battery-powered devices. - 3-state outputs provide flexibility in connecting to shared lines or buses.

Disadvantages: - Limited voltage range of 4.5V to 5.5V may not be compatible with all systems. - Propagation delay time of 2.8ns may not be sufficient for extremely time-critical applications.

Working Principles

The SN74ABT620DBR operates by receiving digital input signals (A1-A4, B1-B4) and enabling the output (Y1-Y4) based on the state of the output enable pins (OE1-OE4). When the output enable pin is active (low), the corresponding data inputs are buffered and driven to the outputs. When the output enable pin is inactive (high), the outputs are in a high-impedance state, allowing other devices to drive the shared line.

Detailed Application Field Plans

The SN74ABT620DBR can be used in various applications, including but not limited to:

1. Data communication systems: The IC can be used to buffer and drive digital signals in communication systems, ensuring reliable transmission over long distances.
2. Microcontroller interfacing: It can be used to interface microcontrollers with other digital devices, providing signal buffering and driving capabilities.
3. Memory systems: The IC can be employed in memory systems to enable efficient data transfer between memory modules and other components.
4. Industrial automation: It can be utilized in industrial automation systems for buffering and driving signals between different control units.

Detailed and Complete Alternative Models

1. SN74ABT620DWR: Similar to SN74ABT620DBR but available in SOIC-20 package.
2. SN74ABT620DWRE4: Same as SN74ABT620DWR but RoHS compliant.
3. SN74ABT620DBLE: Similar to SN74ABT620DBR but available in SSOP-20 package with lead-free plating.

These alternative models offer similar functionality and characteristics to the SN74ABT620DBR, providing options for different package preferences or compliance requirements.

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