DM74AS648WMX

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Logic components are building blocks that are crucial to the creation of a more complex circuit. They transfer and manipulate states, in the form of either zero or one, and amplify signals sent across the integrated circuit. These components have a wide range of applications and are found on a variety of devices including computers and mobile phones.

One such logic device, the DM74AS648WMX, is a multiplexer/demultiplexer, which buffers, transmits, and receives signals. This device is commonly used in bus-oriented systems, where it takes multiple data sources and combines them into a single output. It is also used to route signals along with chip enable signals in memory systems.

Application Field

The DM74AS648WMX is a 16-pin integrated circuit (IC) and features three data lines with two enable inputs, two buffers, four transceivers, two receivers and one driver. It contains a logic block, which takes four 8-bit input latches and switches them in sequence. The device is commonly found in applications that involve routing signals and data. This includes motor and servo control, memory systems, and system architecture. It is also used in vehicle and factory automation, including applications where data has to be buffered and transferred.

Due to the device being fast and having low power dissipation, it is ideal for many consumer applications. For example, it can be used in digital televisions and video games, where a single device can process data from several sources and feed it to a single output.

Working Principle

The DM74AS648WMX emits enabled outputs when the two enable inputs (ENB and ENBH) are activated. Once the ENB is activated, the device will recognize the logic level on the data bus (bits 0-3), and switch the corresponding latch. The ENBH pin is an active-high signal, while the ENB pin is an active-low signal. Both of these signals are necessary in order to select the right output.

The device has four transceivers, two receivers, and one driver. The transceivers are used to connect the device to the input lines, and the receiver and driver are used for connection to the output lines. The receiver is used for detecting the data sent from the bus, and the driver is used for buffering and amplifying the data sent from the bus.

When the DM74AS648WMX is configured to read data, it takes the logic level at the data bus as an input, and the output will be sent to the corresponding output pin, based on the combination of the two enable inputs. When the DM74AS648WMX is configured to write data, it takes the logic level of the data bus as an output, and the input will be accepted from the corresponding input pin, based on the combination of the two enable inputs.

The device is very fast and has low power dissipation, making it ideal for consumer applications. The device is also very cost-effective and is widely used in a variety of applications. It is used in systems that require signal routing, buffering and transferring, such as motor and servo control, and system architecture.

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