SN74ABT125DBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: High-speed, low-power, non-inverting
• Package: SSOP-14
• Essence: Logic level translation and signal buffering
• Packaging/Quantity: Tape and Reel, 2500 pieces 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 Current: ±24mA
• Input Capacitance: 3pF (typical)

Detailed Pin Configuration

The SN74ABT125DBR has a total of 14 pins, which are assigned as follows:

1. OE (Output Enable) - Active Low Output Enable
2. 1A - Input 1
3. 1Y - Output 1
4. GND - Ground
5. 2Y - Output 2
6. 2A - Input 2
7. 3A - Input 3
8. 3Y - Output 3
9. VCC - Power Supply
10. 4Y - Output 4
11. 4A - Input 4
12. GND - Ground
13. NC (No Connection)
14. OE (Output Enable) - Active Low Output Enable

Functional Features

• Non-inverting buffer with 3-state outputs
• High-speed operation for efficient signal transmission
• Low power consumption for energy efficiency
• Logic level translation between different voltage domains
• 3-state outputs allow multiple devices to share a common bus

Advantages and Disadvantages

Advantages: - High-speed operation enables fast data transfer - Low power consumption reduces energy usage - Logic level translation facilitates compatibility between different voltage levels - 3-state outputs allow for efficient bus sharing

Disadvantages: - Limited output current may not be suitable for driving heavy loads - Restricted operating temperature range (-40°C to +85°C) - Only available in SSOP-14 package, limiting mounting options

Working Principles

The SN74ABT125DBR is a non-inverting buffer with 3-state outputs. It operates by receiving input signals and amplifying them to the corresponding output pins. The device can be enabled or disabled using the OE (Output Enable) pin. When the OE pin is low, the outputs are active and reflect the input signals. Conversely, when the OE pin is high, the outputs are in a high-impedance state, allowing other devices to drive the shared bus.

Detailed Application Field Plans

The SN74ABT125DBR is commonly used in various applications that require logic level translation and signal buffering. Some of the typical application fields include:

1. Microcontroller interfacing: The IC can be used to interface microcontrollers operating at different voltage levels, ensuring proper communication between them.
2. Communication systems: It can be employed in communication systems to buffer and translate signals between different parts of the system, such as between a transmitter and receiver.
3. Industrial automation: The device finds utility in industrial automation systems where it helps in translating and buffering control signals between different components.
4. Automotive electronics: In automotive applications, the IC can be used for voltage level translation and signal buffering in various subsystems, such as engine control units and infotainment systems.

Detailed and Complete Alternative Models

1. SN74ABT126DBR: Similar to SN74ABT125DBR, but with 3-state outputs on different pins.
2. SN74ABT2244ADB: Octal buffer/line driver with 3-state outputs and increased output current capability.
3. SN74ABT16244ADGGR: 16-bit buffer/line driver with 3-state outputs, suitable for larger data buses.

These alternative models offer similar functionality to the SN74ABT125DBR but may have variations in pin configuration, package type, or additional features.

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