The PC74HCT245T is a high-speed Si-gate CMOS device from NXP Semiconductors, renowned for its exceptional performance and reliability. This integrated circuit is part of the 74HCT family, which is designed to operate at the same speed as 74LS while maintaining the CMOS low power dissipation.
This octal bus transceiver is crafted to provide bidirectional interfacing between two buses with the capability to drive heavily loaded bus lines with up to 15 LSTTL loads. The device features eight non-inverting bus transceivers with 3-state outputs and is designed to be used in asynchronous communication between data buses.
Key Features:
- Logic Type: Octal Bus Transceiver with 3-state outputs
- Operating Voltage: 4.5V to 5.5V, making it compatible with TTL levels
- Output Current: -32mA / 64mA, providing sufficient drive capability
- Propagation Delay Time: Typically 8ns, ensuring high-speed operation
- Temperature Range: -40°C to +125°C, suitable for industrial applications
- Package: SOIC-20, a small-outline integrated circuit package
The device contains eight flip-flops with 3-state outputs for bus-oriented applications. The flip-flops appear transparent to the data when the Latch Enable (LE) input is HIGH. When LE is LOW, the data that meets the setup time is latched. Data on the A or B bus will be clocked into the registers as the direction control (DIR) signal is changed from HIGH to LOW or LOW to HIGH respectively.
With its high noise immunity and low power consumption, the PC74HCT245T is ideally suited for interfacing with high-speed microprocessors and can be used in a variety of digital applications such as computers, communication equipment, and data processing systems. Moreover, its robust design ensures that the device can tolerate higher electrical stresses, making it an excellent choice for demanding environments.
Overall, the PC74HCT245T from NXP is a versatile and reliable component that offers a perfect balance between power consumption and speed, making it a go-to choice for designers and engineers in the electronics industry.