DM74ALS258MX

Logic - Signal Switches, Multiplexers, Decoders

A DM74ALS258MX is a multiplexer or data selector chip. Multiplexers or Data Selectors are digital chips used to route two digital signal sources to one destination. It is used to transfer data from one circuit to another, often from a processor to other peripheral devices. The DM74ALS258MX is a high speed, low power, 8-bit device with extended matched propagation delays. It is made with Advanced Low Power Schottky (ALS) processing and has a Very High-Speed circuit technology designed to provide optimum performance.

The DM74ALS258MX works in much the same way as a relay or switch. It requires three inputs; an addressable line, a data select line, and an enable pin. The addressable line holds the 8-bit address to indicate which of the two sources are to be transferred. The data select line activates the multiplexer, allowing data to be transferred from the data lines to the output. Finally, the enable pin activates the DM74ALS258MX to allow it to begin transferring data.

The DM74ALS258MX supports 8- or 10-bit address lines and is designed to operate with a logic supply of 3.3V or 5V. It is designed to minimize power dissipation, and can be made available in various packages, such as P-DIP, N-DIP, PLCC, and SOIC. The DM74ALS258MX is specifically designed to operate in high-performance applications such as data buses and memory-mapped I/O.

The DM74ALS258MX is an extremely versatile and efficient chip, making it a good choice for a variety of applications. For example, the device can be used to provide fast data transfer from microcontrollers to peripheral devices. It can also be used to provide inputs to data buses and memory-mapped I/O that require high levels of speed. Additionally, the chip can be used as an active switch by using the DATA SELECT pin for low power applications that require improved noise immunity and fast data transfer.

In conclusion, the DM74ALS258MX is an extremely versatile and efficient chip that is well-suited for a variety of applications. It provides fast data transfer, improved noise immunity and low power dissipation. It is available in a variety of packages and is capable of operating on either 3.3V or 5V logic supply.