MC74VHC126DR2

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Gate Buffer/Driver
• Characteristics: High-Speed, Low-Power, Quad Bus Buffer
• Package: SOIC-14
• Essence: The MC74VHC126DR2 is a quad bus buffer/driver designed for high-speed logic level translation. It operates at low power and provides four independent non-inverting buffers with 3-state outputs.
• Packaging/Quantity: The MC74VHC126DR2 is available in a tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage: 2.0V to 5.5V
• Input Voltage: -0.5V to VCC + 0.5V
• Output Voltage: -0.5V to VCC + 0.5V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 4.5ns (typical) at 5V supply voltage
• Output Drive Capability: ±8mA at 5V supply voltage

Pin Configuration

The MC74VHC126DR2 has a 14-pin Small Outline Integrated Circuit (SOIC) package. The pin configuration is as follows:

__ __ Y1 |1 \__/ 14| VCC Y2 |2 13| A1 Y3 |3 12| A2 Y4 |4 11| A3 GND |5 74VHC 10| OE A1 |6 126D 9| Y4 A2 |7 R2 8| Y3 --------

Functional Features

• High-Speed Logic Level Translation: The MC74VHC126DR2 provides fast logic level translation between different voltage levels, making it suitable for interfacing between devices operating at different voltages.
• Low Power Consumption: This IC is designed to operate at low power, making it energy-efficient and suitable for battery-powered applications.
• Quad Buffer: It has four independent non-inverting buffers, allowing for multiple signal buffering or driving operations.
• 3-State Outputs: The outputs of the buffers can be put into a high-impedance state using the Output Enable (OE) pin, allowing for bus sharing and preventing contention.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient logic level translation.
• Low power consumption makes it suitable for portable and battery-powered devices.
• Multiple independent buffers provide flexibility in signal buffering and driving applications.
• 3-state outputs allow for bus sharing and prevent signal contention.

Disadvantages

• Limited output drive capability may not be suitable for applications requiring higher current sourcing or sinking capabilities.
• The SOIC package may not be ideal for space-constrained designs.

Working Principles

The MC74VHC126DR2 operates by receiving input signals on the A1, A2, A3 pins and providing corresponding buffered outputs on the Y1, Y2, Y3, and Y4 pins. The OE pin controls the output enable/disable function. When OE is low, the outputs are active and follow the inputs. When OE is high, the outputs are in a high-impedance state.

Detailed Application Field Plans

The MC74VHC126DR2 can be used in various applications, including but not limited to: - Voltage level translation between different logic families. - Signal buffering and driving in microcontroller-based systems. - Interface between devices operating at different voltage levels. - Bus sharing and signal isolation in multi-device communication systems.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the MC74VHC126DR2 are: - SN74LVC126A: Quad Buffer/Driver with 3-State Outputs - CD74HCT126E: High-Speed CMOS Logic Quad Buffer/Driver - 74HC126: Quad 3-State Buffer

These alternative models offer similar functionality and can be used as replacements based on specific application requirements.

Word count: 439 words