74LVT2245SJ

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics: High-speed, low-voltage, bidirectional communication
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Logic Level Translator
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2.7V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 200MHz
• Number of Channels: 8
• Input/Output Type: Tri-State

Detailed Pin Configuration

The 74LVT2245SJ has a total of 20 pins, which are arranged as follows:

+-------------------+ OE1 |1 20| VCC A1 |2 19| B1 A2 |3 18| B2 A3 |4 17| B3 A4 |5 74LVT2245SJ 16| B4 GND |6 15| B5 B1 |7 14| A5 B2 |8 13| A6 B3 |9 12| A7 B4 |10 11| A8 +-------------------+

Functional Features

• Bidirectional voltage level translation between two different voltage domains.
• Allows for seamless communication between devices operating at different voltage levels.
• Supports high-speed data transmission up to 200MHz.
• Provides tri-state outputs for bus sharing applications.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data transfer.
• Low-voltage operation reduces power consumption.
• Bidirectional communication simplifies system design.
• Tri-state outputs facilitate bus sharing.

Disadvantages

• Limited supply voltage range (2.7V to 3.6V).
• Not suitable for applications requiring voltage translation beyond the specified range.
• May introduce signal degradation due to voltage level shifting.

Working Principles

The 74LVT2245SJ operates by translating logic-level signals between two voltage domains. It utilizes a combination of MOSFETs and CMOS technology to achieve bidirectional communication. The device detects the input voltage level and adjusts the output voltage accordingly, allowing seamless data transfer between devices operating at different voltage levels.

Detailed Application Field Plans

The 74LVT2245SJ is commonly used in various applications that require voltage level translation and bidirectional communication. Some typical application fields include: - Microcontroller interfacing with peripheral devices operating at different voltage levels. - Communication systems involving multiple devices with varying voltage requirements. - Bus transceivers in computer systems and networking equipment. - Industrial automation and control systems.

Detailed and Complete Alternative Models

• 74LVX245: Similar functionality but operates at a wider supply voltage range (2.0V to 5.5V).
• 74HCT245: Compatible with TTL logic levels and operates at a wider supply voltage range (4.5V to 5.5V).
• SN74LVC4245A: Provides 16 channels instead of 8 and operates at a lower supply voltage range (1.65V to 3.6V).

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