74ACT16543MTDX

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The 74ACT16543MTDX is a logic device belonging to the category of Buffers, Drivers, Receivers, and Transceivers. It is available in a 20-pin plastic dual-in-line package and is rated for operation over a temperature range of 0°C to 70°C.

The 74ACT16543MTDX consists of two 4-bit two-directional universal shift registrars (USRTs) that are capable of low speed parallel to serial conversion and serial to parallel conversion. Each USRT contains a serial input (SI), serial output (SO), parallel data inputs (A0 through A3) and output enable (G). The USRTs are controlled by a common mode input (CMO) and clock (CK).

The device features a low power CMOS technology that enables it to consume minimal power during operation. This device does not have any internal pull-up resistors, thus it relies on external pull-up resistors to maintain the idle state of the output pin. The maximum operating VCC of 4.5V and the minimum operating temperature range of 0°C to 70°C enables the 74ACT16543MTDX to be used in a variety of applications.

The 74ACT16543MTDX is commonly used in applications involving digital signal processing (DSP), such as in data communication, mobile phone devices, and intelligent digital controllers. It is also used in applications where it is required to convert parallel data to serial data, or vice versa. The device is well suited for applications requiring low power operation and adaptive shift register control.

The working principle of the 74ACT16543MTDX revolves around the USRTs in the device. When data is placed to one of the four parallel data inputs (A0 through A3) and the Clock (CK) input is pulsed high, the parallel data at the inputs is shifted serially out of the Serial Output (SO). The parallel enable (G) input is used to enable the data to be shifted out. If the mode input (CMO) is low, the device shifts data out as if the data was entering at SI. If the mode input (CMO) is high, the data is shifted out in reverse order.

When data is placed at the Serial Input (SI) and the clock (CK) input is pulsed high, the serial data is shifted in and stored at the respective parallel data outputs (A0 through A3). The parallel enable (G) input is used to enable the data to be shifted in. If the mode input (CMO) is low, data is loaded as if it is entering from A0. If the mode input (CMO) is high, data is loaded in reverse order. The 74ACT16543MTDX can handle an input data rate from 0 to 10 MHz (typical).

The 74ACT16543MTDX is an excellent choice for applications requiring low power consumption and adaptive shift register control. Its low power CMOS technology, versatile input/output options, and wide range of operating temperature and VCC ranges makes it suitable for a variety of applications. Its two 4-bit two-directional universal shift registrars (USRTs) make it a reliable choice for applications such as data communication, mobile phone devices, and intelligent digital controllers.

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