74ACT11257PWR

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The 74ACT11257PWR is a high-speed TTL-input-compatible encoder/decoder operating from a single 5V power supply. It is one in a family of CMOS Logic - Signal Switches, Multiplexers, Decoders. The device is symmetrically designed from 8 to 24 data sources with outputs for eight active-low address select and eight active-high indicators for address selection. It is designed for use in logic systems to multiplex and de-multiplex data and can also be used to decode addresses.

The 74ACT11257PWR features high-performance CMOS technology to achieve operating speeds comparable to the fast TTL operating range (5V supply). It uses a pseudo-NMOS output stage with multiple outputs with low current and virtually no switching noise. It also features a latch-up protected power-on reset (POR) circuit to reset the device on power-up and allows reliable operation in noisy supply environments.

The 74ACT11257PWR is used in many different applications including: high-speed communication systems, multiplexing data, decoding addresses, and driving multiple circuits simultaneously. It is also used in microprocessor and microcontroller-based systems, logic systems, bus networks, and logic expansion systems. This high-performance device is designed for high-speed operation and is capable of switching speeds up to 10 Mbps.

The 74ACT11257PWR also offers robust power-on-reset (POR) circuitry for automatic reset of the device on power up. This POR function guarantees reliable operation in noisy supply environments and provides protection from system errors and power line transients. In addition, the device includes an internal pull-up resistor and a feedback bias circuit to improve signal integrity.

The working principle of 74ACT11257PWR is based on the multiplexing of data. It allows three different signals to be sent over a single wire, by alternating between them every few microseconds. The device processes the data and sends out a series of signals that indicate the position of the multiplexed signal, which then allows the other end to decode the signals correctly. Multiplexing increases the amount of data that can be sent in a single wire, while also reducing the power consumption of the system.

In summary, the 74ACT11257PWR is a high-speed TTL-input-compatible encoder/decoder operating from a single 5V power supply. It belongs to a family of CMOS Logic - Signal Switches, Multiplexers, Decoders. The device can be used in many different applications, such as high-speed communication systems, multiplexing data, decoding addresses and driving multiple circuits simultaneously. It also features a POR circuitry for reliable operation in noisy supply environments. The working principle of the device is based on the multiplexing of data, allowing three different signals to be sent over a single wire by alternating between them every few microseconds.

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