74LV125DB,112

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Driver
• Characteristics: Low-voltage, Quad 3-state non-inverting buffer
• Package: SSOP-14
• Essence: Logic Level Shifter
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-Level Input Voltage: 2.0V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Current: -24mA
• Low-Level Output Current: 24mA
• Propagation Delay Time: 4.5ns (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The 74LV125DB,112 IC has a total of 14 pins arranged as follows:

__ __ Y1 |1 \/ 14| VCC Y2 |2 13| A1 GND|3 12| Y3 A2 |4 11| Y4 OE |5 10| GND A3 |6 9| OE Y1 |7 8| A4 ----------

Functional Features

• Quad non-inverting buffer with 3-state outputs
• Compatible with TTL levels
• Provides voltage level shifting between different logic families
• Enables bidirectional communication between devices operating at different voltage levels
• Offers high-speed operation with low power consumption
• Supports hot insertion
• Provides overvoltage-tolerant inputs for better noise immunity

Advantages and Disadvantages

Advantages: - Low-voltage operation allows compatibility with a wide range of devices - 3-state outputs provide flexibility in controlling bus lines - High-speed operation enhances overall system performance - Overvoltage-tolerant inputs improve reliability in noisy environments

Disadvantages: - Limited number of buffer channels (4 in this case) - May require additional external components for certain applications

Working Principles

The 74LV125DB,112 is a quad non-inverting buffer that operates as a voltage level shifter. It takes input signals from one logic family and provides output signals compatible with another logic family. The device uses CMOS technology, allowing it to operate at low voltages while providing high-speed performance.

The buffer's 3-state outputs enable the control of bus lines, allowing multiple devices to share the same communication lines without interference. When the output enable (OE) pin is high, the outputs are in a high-impedance state, effectively disconnecting them from the bus.

The overvoltage-tolerant inputs protect the device from noise and voltage spikes, ensuring reliable operation even in challenging environments.

Detailed Application Field Plans

The 74LV125DB,112 finds application in various fields, including:

1. Microcontroller interfacing: It facilitates communication between microcontrollers operating at different voltage levels.
2. Level shifting in mixed-signal systems: It enables bidirectional data transfer between analog and digital circuits.
3. Bus line buffering: It provides signal amplification and isolation for shared bus lines in multi-device systems.
4. Industrial automation: It serves as a voltage level translator in control systems, allowing integration of different components.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74LV125DB,112 include:

1. SN74LVC125A: Quad 3-state non-inverting buffer with similar specifications and pin configuration.
2. MC74LVX125: Quad non-inverting buffer with 3-state outputs, compatible with a wide supply voltage range.
3. CD74HCT125E: Quad bus buffer gates with 3-state outputs, suitable for high-speed applications.

These alternative models can be considered based on specific requirements and availability.

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