SN74LVC257APWRE4

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Logic signals occupy an important position in the current digital world and are used as the basis of data processing and transmission in many applications. SN74LVC257APWRE4 is a multiplexer/decoder featured by low power consumption and high speed. In this article, its application field and working principle are introduced.

SN74LVC257APWRE4 is categorized as a type of "Data Switches and Multiplexers" for the purpose of signal switching and multiplexing, or data transmission over many lines. It functions as a "De-multiplexer" by connecting a single data signal to several lines. This multiplexer/decoder is usually found in a variety of operating environments, ranging from microcontroller-based systems to power electronic systems. It can also be used in high-speed wire line systems, such as USB and Ethernet. SN74LVC257APWRE4 is especially suitable for bus uplink speed-ups and other embedded systems.

Regarding to the package size, SN74LVC257APWRE4, which is classified as a Time-Delay and ECL Switches and Multiplexers, is delivered in the SSOP-DIP packaging. The power consumptions is relatively low, it dissipates 2.403 W (maximum) in 4.2 mA single supply voltage. It can maintain a power supply voltage range from 1.65 V to 5.5 V and its data rate can reach up to 8 Gb/s.

SN74LVC257APWRE4 is featured by a wide temperature operating range of -40 to 125°C and a combination of series and parallel termination methods. The lever-latching mechanism of its pins ensures an optimal contact between pins and sockets to eliminate any unintentional disconnection of emitter, collector and REF pins. This makes it the ideal choice for applications that require reliable, effortless maintenance and are frequently subject to vibration and shocks, such as automotive and industrial ones.

The working principle of SN74LVC257APWRE4 is based on three logic inputs and two logic outputs, with one of the logic outputs acting as an enable signal. Its inputs are controlled by a single "multiplex control" input and the two outputs control a variable number of lines. This is achieved through a set of logic gates which enable two different types of switching functions. The first is the "data" switch which passes the logic level from an input to the relevant output line. The second is a "control" switch which passes the multiplex control data from an input line to a selected output line. The enable signal acts as a gate to the switching function, allowing the control to be used to switch on/off the data signals.

The SN74LVC257APWRE4 is thus an ideal choice for multiplexer/decoder applications with a very high level of reliability, robustness and wide operational range. It is suitable for a variety of applications with different requirements and different operating conditions, such as automotive, industrial and consumer products.

The specific data is subject to PDF, and the above content is for reference