ON Semiconductor MC74LCX245DWG - Product Overview

The ON Semiconductor MC74LCX245DWG is a high-performance, low-voltage bidirectional transceiver designed for asynchronous communication between data buses. This device is capable of transferring data from the A bus to the B bus and vice versa, depending on the logic level at the direction control (DIR) input. The output enable (OE) input can be used to disable the device so that the buses are effectively isolated.

The MC74LCX245DWG operates at a voltage range of 2.3V to 3.6V, which allows for lower voltage operation and interfacing with 3.3V logic devices. This makes it an excellent choice for systems that require a bridge between 3.3V and 5V buses, or for interfacing with mixed-voltage systems. The device also features 5V tolerant inputs, which allows for direct interfacing with 5V TTL logic without the need for additional level shifting.

With its low on-state resistance, the MC74LCX245DWG ensures minimal propagation delay and high-speed data transfer, which is essential for high-performance computing and communication systems. The device is also characterized for operation from -40°C to +85°C, making it suitable for industrial and automotive applications that require reliable performance under extreme temperature conditions.

Key Features:

• Bi-Directional Interface Between Two Buses
• Power-Off High Impedance Inputs and Outputs
• Supports Live Insertion and Withdrawal (Partial Power Down Mode)
• 5V Tolerant Inputs
• Latch-Up Performance Exceeds 500mA (JESD 17)
• ESD Protection Exceeds JESD 22

The MC74LCX245DWG comes in a 20-SOIC (0.295", 7.50mm Width) package, which is a surface-mount, wide-body package that is suitable for automated PCB assembly processes and space-constrained applications. This package type also aids in heat dissipation for better thermal performance.

ON Semiconductor's commitment to quality ensures that the MC74LCX245DWG is a reliable and durable choice for designers looking to implement a bidirectional transceiver in their digital systems. Whether used in computing, networking, or communication devices, this product offers a versatile solution for data bus transmission and reception.