74LCX125YTTR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: Low Voltage, Quad Buffer/Line Driver with 3-State Outputs
• Package: TSSOP-14
• Essence: This IC is designed to shift logic levels between different voltage domains, allowing compatibility between devices operating at different voltage levels.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• High-Level Input Voltage: 2V to Vcc + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: Vcc - 0.5V
• Low-Level Output Voltage: 0.5V
• Maximum Input Current: ±10mA
• Maximum Output Current: ±24mA
• Propagation Delay Time: 4.5ns (max) at 3.3V supply
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74LCX125YTTR has a TSSOP-14 package with the following pin configuration:

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

Functional Features

• Quad buffer/line driver with 3-state outputs
• Provides voltage level shifting between different logic levels
• Supports bidirectional data flow
• 3-state outputs allow for high impedance state when not enabled
• Low power consumption
• High-speed operation

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - Low power consumption makes it suitable for battery-powered devices - High-speed operation enables efficient data transfer - 3-state outputs provide flexibility in bus architectures

Disadvantages: - Limited number of buffer/line driver channels (4 in this case) - Not suitable for applications requiring higher voltage levels

Working Principles

The 74LCX125YTTR is a logic level shifter that operates by receiving input signals from one voltage domain and translating them to another voltage domain. It utilizes a combination of MOSFETs and CMOS technology to achieve the desired voltage level shifting.

When an input signal is received, the IC determines the appropriate voltage level based on the supply voltage range. The translated signal is then outputted through the corresponding buffer/line driver channel. The 3-state outputs allow the IC to enter a high impedance state when not enabled, preventing any interference with other devices connected to the bus.

Detailed Application Field Plans

The 74LCX125YTTR is commonly used in various applications where logic level shifting is required. Some of the typical application fields include:

1. Microcontrollers and microprocessors: Facilitates communication between devices operating at different voltage levels.
2. Communication interfaces: Enables compatibility between different voltage domains in UART, SPI, I2C, and other serial communication protocols.
3. Battery-powered devices: Allows for efficient voltage level translation in portable electronics, such as smartphones, tablets, and wearables.
4. Industrial automation: Used in control systems to interface between different voltage domains in sensors, actuators, and PLCs.
5. Automotive electronics: Enables communication between different voltage levels in automotive control units, sensors, and displays.

Detailed and Complete Alternative Models

1. 74LVC125A: Similar quad buffer/line driver with 3-state outputs, but operates at a wider supply voltage range of 1.2V to 5.5V.
2. SN74LVC125A: Equivalent IC from Texas Instruments, offering the same functionality and specifications as the 74LCX125YTTR.
3. MC74LCX125: Another alternative from ON Semiconductor, providing logic level shifting capabilities with similar characteristics.

These alternative models can be considered based on specific requirements and compatibility with existing systems.

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