SN74HC245DTR

The SN74HC245DTR is a high-performance octal 3-state non-inverting bus transceiver IC designed for asynchronous bidirectional communication between data buses. It belongs to the HC series of CMOS logic ICs, featuring low power consumption, high noise immunity, and compatibility with standard CMOS and LSTTL outputs.

The SN74HC245DTR is pin-compatible with the LS245 and offers a wide operating voltage range of 2.0 to 6.0 V. It features an active-low Output Enable (OE) pin that can be used to place the I/O ports into a high-impedance state, effectively isolating the buses when not in use. The Direction (DIR) control input determines the direction of data flow, allowing data to be transmitted from Bus A to Bus B or vice versa.

The IC is packaged in a TSSOP-20 package, which is inherently Pb-free and suitable for surface-mount technology (SMT) applications. It offers high current 3-state outputs that can directly drive buses or up to 15 LSTTL loads. With its high-speed performance, typical propagation delays of 12 ns, and low power consumption of 80 μA maximum ICC, the SN74HC245DTR is ideal for use in high-speed digital circuits and systems.

In summary, the SN74HC245DTR is a versatile and high-performance octal bus transceiver IC that offers bidirectional communication, low power consumption, high noise immunity, and compatibility with a wide range of digital systems. Its small footprint and Pb-free packaging make it suitable for use in a variety of applications, including memory interfacing, microprocessors, and other digital circuits requiring precise signal control.