CD40257BE

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CD40257BE is a CMOS Logic signal switch and signal multiplexer from the CD4000 series by Texas Instruments. It is designed to work as a 1-of-8 multiplexer in signal selection applications and as a 3-state buffer in multi-state signal routing applications. This chip has been used in a wide range of electronic systems, including data acquisition and automation. It can be used in both industrial and consumer applications.

The CD40257BE is composed of two fully independent analog switches, two multiplexers, and two 3-state buffers, allowing designers to use several different combinations. Each switch has a TTL compatible buffered input control line, and a TTL compatible High level output control line. The multiplexer has eight possible input signals, and one OR-gated output signal. The 3-state buffers have active-low output enable signals.

When the chip is used as a multiplexer, the input signals are selected according to the CMOS logic levels on the input control lines. When the chip is used as a buffer, the outputs are driven according to the input levels, and the outputs are enabled according to the CMOS logic levels on the output control lines. The chip is designed to work over a supply voltage range of 2.7V to 5.5V and up to 30mA of continuous current per switch.

The CD40257BE is an ideal choice for applications where flexibility and low power are required. The chip can be used in a wide range of industrial and commercial applications, such as machine controls, data acquisition systems, robotic controllers, video game consoles, and digital systems. The CMOS logic design minimizes power consumption and the chip is tolerant of input voltage spikes.

The CD40257BE is a high-performing and reliable device, with an excellent power-to-performance ratio. It is built with ESD protection to ensure a long product lifetime and reliable performance over a wide temperature range. The chip is compatible with standard CMOS logic and is designed for use with various embedded systems.

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