Encyclopedia Entry: 74FST3245DTR2

Product Overview

• Category: Integrated Circuit (IC)
• Use: Signal Switching and Level Shifting
• Characteristics: High-speed, Bidirectional, Octal Bus Transceiver
• Package: TSSOP-20
• Essence: Efficient signal transmission and level conversion
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

The 74FST3245DTR2 is a high-performance octal bus transceiver designed for bidirectional signal switching and level shifting applications. It operates at high speeds and provides efficient signal transmission between two buses with different voltage levels.

Key specifications include: - Supply Voltage Range: 2.3V to 3.6V - Input Voltage Range: 0V to VCC - Output Voltage Range: 0V to VCC - Maximum Data Rate: 400Mbps - Low ON Resistance: 4Ω (typical) - ESD Protection: >2000V (Human Body Model)

Pin Configuration

The 74FST3245DTR2 has a TSSOP-20 package with the following pin configuration:

___________ OE |1 20| VCC A1 |2 19| B1 A2 |3 18| B2 A3 |4 17| B3 A4 |5 16| B4 A5 |6 15| B5 A6 |7 14| B6 A7 |8 13| B7 GND |9 12| B8 DIR |10 11| OE# -----------

Functional Features

• Bidirectional data flow: The 74FST3245DTR2 allows data transmission in both directions, making it suitable for applications where signals need to be exchanged between two buses.
• Level shifting capability: It can convert voltage levels between different buses, enabling seamless communication between systems operating at different voltage levels.
• High-speed operation: With a maximum data rate of 400Mbps, the IC ensures fast and reliable signal transmission.

Advantages and Disadvantages

Advantages: - Efficient signal switching and level shifting capabilities - High-speed operation for quick data transfer - Compact TSSOP-20 package for space-constrained designs - ESD protection for enhanced reliability

Disadvantages: - Limited voltage range (2.3V to 3.6V) - Requires careful consideration of input and output voltage compatibility

Working Principles

The 74FST3245DTR2 utilizes a combination of MOSFETs and CMOS technology to achieve bidirectional signal transmission and level shifting. When the direction control pin (DIR) is set to a specific logic level, the IC enables data flow from one bus to another. The OE (Output Enable) pin controls the tri-state outputs, allowing the user to disable or enable the transceiver as needed.

Application Field Plans

The 74FST3245DTR2 finds applications in various fields, including: 1. Data communication systems 2. Networking equipment 3. Industrial automation 4. Test and measurement instruments 5. Consumer electronics

Alternative Models

For similar functionality, alternative models to consider include: - SN74LVC245A - MC74LVX245 - 74HC245

These alternatives offer comparable features and performance, providing flexibility in choosing the most suitable IC for specific applications.

In conclusion, the 74FST3245DTR2 is a high-speed, bidirectional octal bus transceiver designed for efficient signal switching and level shifting. With its compact package and versatile functionality, it serves as a reliable solution in various industries, ensuring seamless communication between different voltage domains.