SN74AHCT125QDREP

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: High-speed, low-power consumption
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Quad Bus Buffer Gate with 3-State Outputs
• 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
• Output Drive Capability: ±24mA at 3.3V
• Propagation Delay: 6ns (typical)

Detailed Pin Configuration

The SN74AHCT125QDREP has a total of 14 pins:

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

Functional Features

• Quad bus buffer gate with 3-state outputs
• Non-inverting outputs
• High-speed operation
• Low power consumption
• Compatible with TTL input/output levels
• Balanced propagation delays
• Wide operating voltage range

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Low power consumption helps in reducing energy usage - Compatibility with TTL input/output levels ensures easy integration into existing systems - Wide operating voltage range provides flexibility in various applications

Disadvantages: - Limited output drive capability compared to some other models - Propagation delay may affect timing-sensitive applications

Working Principles

The SN74AHCT125QDREP is a quad bus buffer gate that operates as a level shifter. It takes input signals from one logic level and converts them to another logic level, allowing seamless communication between different parts of a circuit or system. The 3-state outputs provide the ability to disconnect the outputs from the bus, enabling multiple devices to share the same bus without interference.

Detailed Application Field Plans

The SN74AHCT125QDREP can be used in various applications, including:

1. Microcontroller interfacing: It can be used to interface microcontrollers with different logic levels, ensuring proper signal compatibility.
2. Data communication systems: It enables level shifting between different components in data communication systems, such as UART, SPI, or I2C interfaces.
3. Industrial automation: The IC can be utilized in industrial automation systems to facilitate communication between different modules or devices operating at different logic levels.
4. Automotive electronics: It finds application in automotive electronics for level shifting signals between different subsystems, such as sensors, actuators, and control units.

Detailed and Complete Alternative Models

1. SN74LVC125A: Quad Bus Buffer Gate with 3-State Outputs, operates at lower voltage levels (1.65V to 5.5V).
2. SN74HCT125: Quad Bus Buffer Gate with 3-State Outputs, operates at higher voltage levels (4.5V to 5.5V).
3. SN74LV1T125: Single Bus Buffer Gate with 3-State Output, suitable for low-power applications.

These alternative models offer similar functionality but may have different voltage ranges, power consumption, or package options. It is important to select the appropriate model based on specific requirements and system constraints.

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