SN74LVC125APWRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Driver
• Characteristics: Low-Voltage CMOS Quad Bus Buffer with 3-State Outputs
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: This IC is designed to provide buffering and driving capabilities for digital signals in low-voltage applications.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• High-Level Input Voltage: 0.7 x VCC to VCC
• Low-Level Input Voltage: 0V to 0.3 x VCC
• High-Level Output Voltage: 0.9 x VCC to VCC
• Low-Level Output Voltage: 0V to 0.1 x VCC
• Maximum Operating Frequency: 80 MHz
• Number of Pins: 14
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVC125APWRG4 has a total of 14 pins, which are labeled as follows:

1. OE (Output Enable) 1
2. Y1 (Output) 1
3. A1 (Input) 1
4. GND (Ground)
5. A2 (Input) 2
6. Y2 (Output) 2
7. OE (Output Enable) 2
8. VCC (Supply Voltage)
9. Y3 (Output) 3
10. A3 (Input) 3
11. A4 (Input) 4
12. Y4 (Output) 4
13. OE (Output Enable) 3
14. GND (Ground)

Functional Features

• Quad bus buffer with 3-state outputs
• Supports bidirectional data flow
• Provides buffering and driving capabilities for digital signals
• Low-voltage operation suitable for battery-powered devices
• High-speed operation up to 80 MHz
• 3-state outputs allow multiple devices to share a common bus

Advantages and Disadvantages

Advantages: - Low-voltage operation extends battery life in portable applications - High-speed operation enables efficient data transfer - 3-state outputs facilitate bus sharing among multiple devices

Disadvantages: - Limited number of output pins (4) - Not suitable for high-voltage applications

Working Principles

The SN74LVC125APWRG4 operates by receiving digital input signals on its four input pins (A1, A2, A3, A4). These signals are buffered and amplified internally before being transmitted to the corresponding output pins (Y1, Y2, Y3, Y4). The Output Enable (OE) pins control the state of the outputs, allowing them to be either active or in a high-impedance state.

Detailed Application Field Plans

The SN74LVC125APWRG4 is commonly used in various applications, including:

1. Microcontroller interfacing: It can be used to interface microcontrollers with other digital devices, such as sensors, displays, and memory modules.
2. Level shifting: It can be employed to convert logic levels between different voltage domains, enabling communication between devices operating at different voltage levels.
3. Bus driving: It can drive data buses in systems where multiple devices need to share a common bus, such as in communication protocols like I2C or SPI.
4. Signal buffering: It can buffer digital signals to prevent signal degradation and ensure reliable transmission over long distances.

Detailed and Complete Alternative Models

1. SN74LVC126APWRG4: Similar to SN74LVC125APWRG4, but with 3-state outputs and an additional input enable pin.
2. SN74LVC244APWRG4: Octal buffer/line driver with 3-state outputs, suitable for bus driving applications.
3. SN74LVC1G07DBVR: Single buffer/driver with open-drain output, ideal for level shifting applications in low-voltage systems.

These alternative models offer similar functionality and can be used as substitutes depending on specific requirements and system constraints.

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