Encyclopedia Entry: 74LVC125ATTR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: High-speed, low-power, quad buffer/line driver
• Package: TSSOP-14 (Thin Shrink Small Outline Package)
• Essence: Translates signals between different voltage levels
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range (VI): GND to VCC
• Output Voltage Range (VO): GND to VCC
• High-Level Input Voltage (VIH): 0.7 x VCC to VCC
• Low-Level Input Voltage (VIL): GND to 0.3 x VCC
• High-Level Output Voltage (VOH): 0.9 x VCC to VCC
• Low-Level Output Voltage (VOL): GND to 0.1 x VCC
• Propagation Delay (tpd): 4.3 ns (typical) at 3.3V supply
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74LVC125ATTR IC has a total of 14 pins arranged as follows:

___________ OE --| |-- VCC A1 --| |-- B1 A2 --| |-- B2 GND --| |-- A3 A4 --| |-- B4 B3 --| |-- OE# B3 --| |-- GND Y1 --| |-- A4 Y2 --| |-- B4 Y3 --| |-- A3 Y4 --| |-- GND -----------

Functional Features

• Quad buffer/line driver with 3-state outputs
• Translates signals between different voltage levels
• Supports bidirectional data flow
• High-speed operation with low power consumption
• Compatible with both CMOS and TTL voltage levels
• Provides output current capability of ±24mA

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient signal translation - Low-power consumption helps in reducing overall energy usage - 3-state outputs enable easy interfacing with multiple devices - Wide supply voltage range enhances compatibility with various systems

Disadvantages: - Limited number of buffer/line driver channels (4 in this case) - May require additional external components for certain applications - Not suitable for high-voltage level shifting requirements

Working Principles

The 74LVC125ATTR is a logic level shifter that facilitates the translation of digital signals between different voltage levels. It operates by receiving input signals at one voltage level and producing corresponding output signals at a different voltage level. This IC utilizes a quad buffer/line driver configuration, allowing for bidirectional data flow. The 3-state outputs provide flexibility in connecting multiple devices to the same bus. The 74LVC125ATTR is designed to operate at high speeds while consuming minimal power.

Detailed Application Field Plans

The 74LVC125ATTR finds application in various fields where voltage level shifting is required. Some common use cases include: 1. Interfacing between microcontrollers operating at different voltage levels. 2. Level translation between digital circuits using different voltage standards (e.g., CMOS and TTL). 3. Signal conversion in communication systems involving different voltage domains. 4. Integration into mixed-signal designs to bridge the gap between analog and digital components.

Detailed and Complete Alternative Models

1. 74LVC125APW: TSSOP-14 package, similar specifications.
2. SN74LVC125A: SOIC-14 (Small Outline Integrated Circuit) package, comparable characteristics.
3. MC74LVC125ADT: TSSOP-14 package, equivalent functionality.

These alternative models provide similar functionality and can be used as substitutes for the 74LVC125ATTR in various applications.

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