74FCT162827ATPAG

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74FCT162827ATPAG is a member of 74FCT family of high-performance, low-power, low-voltage, CMOS logic dual-input multiplexer/demultiplexer. It is designed to provide simple and fast logic control for select a single bit of data from one of many sources. Therefore, it is classified as a logic multi-input multiplexer/demultiplexer belonging to Logic - Buffers, Drivers, Receivers, Transceivers.

This chip offers significant performance relief compared to equivalent TTL circuits, with only a fraction of power and very low CMOS standby power dissipation. It is well-suited for high-frequency applications with increased bandwidth, supporting up to 20 Mb/s at 5 V. Furthermore, the device supports 3.3 V and 2.5 V output voltage and is tolerant to 5.5 V supply voltage.

The 74FCT162827ATPAG consists of two 8:1 non-inverting multiplexers/demultiplexers with a common select input (SEL), eight data inputs (D0 to D7) connected to the successive stages of an 8-bit shift register, one enable input (EN) connected to the enable inputs of both sections, two enable output (EO and E1) connected to the successive stages of a two-stage shift register, and two outputs (TPAG and TPBG) connected to the outputs of the two sections. It is primarily intended for bus-oriented multiplexing/demultiplexing applications, such as address/data multiplexing in bus-oriented systems.

The functional block diagram of this device is depicted as follows:

At normal operation, when the enable input (EN) is high, the multiplexer/demultiplexer at both sections will be active and the data from the eight data inputs (D0 to D7) will be passed to the two outputs (TPAG and TPBG) according to the logic state at the select input (SEL). The two enable outputs (EO and E1) will correspond to the logic state from the select input (SEL).

When the enable input (EN) is low, all of the multiplexer/demultiplexer at both sections are inoperative and all of the outputs will be in high-impedance state. The two enable outputs (EO and E1) will be in logic low state regardless of the logic state at the select input (SEL).

The device is equipped with maximum ratings and DC specifications to ensure the operating conditions of the chip and provide reliable operation. The typical switch delay of the device is 3 ns. The power dissipation varies from 1 mW to 1904 mW and the maximum input capacitance is 47 pF. The supply voltage range from 4.5 V to 5.5 V and the maximum toggling frequency is 20 MHz. The open drain outputs provide 3-state logic. The operating temperature is up to 70°C.

In conclusion, the 74FCT162827ATPAG is a high-performance, low-power, low-voltage logic multiplexer/demultiplexer, capable of operating at high frequencies with 3-state open drain outputs. It is suitable for multiplexing/demultiplexing applications such as address/data multiplexing in bus-oriented systems, and provides a reliable solution for simple and fast logic switching.

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