74LCXH245MSAX

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74LCXH245MSAX is a Quintiple Differential Bus Transceiver with 3-state outputs. It supports a high-performance bidirectional data-transfer rate of up to 150 Mbps and an open-drain output driver. 74LCXH245MSAX transceivers are designed to provide a high-performance interface between asynchronous, differentially-coupled data buses, such as the Advanced Technology Attachment (ATA) bus, Serial ATA (SATA) bus.

Application field

74LCXH245MSAX are suitable for high-speed, high-performance applications such as data-bus expansion, parallel port expansion, serial data transfer, bi-directional data transfers, and high-speed communication links. It is also applicable for high-speed caching, direct memory access (DMA) and bus mastering applications due to its high data transfer rates.

Working Principle

74LCXH245MSAX works by transmitting the data signal bidirectionally between two independent ports. When transmit mode is enabled, it will forward the data signal on one of its ports to the other port. Similarly, when receive mode is enabled, it will receive the data signal from one port to the other. The peripheral pins of the transceiver allow for controlling data direction, selected mode, and logic level-shifting. The transceiver also includes bus-hold circuitry which provides a predictable logic level output in the absence of an input-signal transition. It also has an adjustable power-on reset timing feature and a power-on reset control pin which helps to reduce system reset time.

74LCXH245MSAX transceivers provide a low-skew, low-jitter interface between two clock domains. Low skew and jitter are important in high-performance systems such as the Advanced Technology Attachment (ATA) bus and Serial ATA (SATA) bus. The transceiver\'s power consumption is very low, making it an ideal choice for low-power applications. It also has an adjustable power-on reset timing feature which helps to minimize system reset time.

The transceivers also include a high-speed 3-state output driver with multiplexed control and configurable input thresholds to accommodate various logic families. The dual-channel, high-speed bidirectional transceiver can be used in many applications including data transfer, bus arbitration and bus bridging. It is ideal for applications which require high data rates, low-skew, low-jitter and low power consumption.

In summary, 74LCXH245MSAX is a high-performance Quintiple Differential Bus Transceiver which provides a low-skew, low-jitter, high-performance interface between two clock domains. It is suitable for high-speed, high-performance applications such as data-bus expansion, parallel port expansion, serial data transfer, bi-directional data transfers, and high-speed communication links. It also has an adjustable power-on reset timing feature and a power-on reset control pin which helps to reduce system reset time. The transceiver\'s power consumption is very low and it is ideal for low-power applications.

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