PI74FCT245TQE

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The PI74FCT245TQE, manufactured by Pericom, is a 8-bit buffering/driving device. The device is organized as two 4-bit buffers/drivers with identical pinouts and functions, allowing multiple boards in one line, eliminating the need for external logic in bus interfacing. The PI74FCT245TQE is available in both a 1.65V and a 3.3V version and is capable of driving up to 15 LS-TTL (Low-Speed TTL) loads.

This device has several application fields. It can be used for memory and peripheral interfacing, data I/O for microprocessors and other data buses, personal computers (PCs), inter-IC (I2C) buses, peripheral, and other buffering and bus driving applications. It can also be used as line drivers and line receivers in high speed logic circuit designs, including flip flops, counters, etc.

The working principle of the PI74FCT245TQE can be understood as follows. It consists of two 4-bit drivers, and two 4-bit receivers, each providing a high impedance, tri-state output. When the output enable (OE) Input is at high level, the device will disable any data present at each of the 4-bit outputs. When the OE Input is at low level, each 4-bit output will be able to drive the specified maximum load with the data present at their corresponding 4-bit inputs. This allows the PI74FCT245TQE to both drive and receive data.

The device is fabricated in Pericom’s advanced CMOS (Complementary Metal Oxide Semiconductor) process, and is guaranteed to operate from 0°C to 70°C . Its high impedance inputs and outputs are designed to interface easily with MOS and TTL logic functions, making it the ideal choice for application where speed and power efficiency are important.

In conclusion, the PI74FCT245TQE is a versatile 8-bit buffering/driving device capable of providing reliable data transmission, with low static power dissipation. It is designed for a wide range of applications, from memory and peripheral interfacing, to high-speed logic circuit design. Moreover, its CMOS process ensures reliable performance in hostile environments, making it suitable for both industrial and consumer applications.

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