The MM74HC165MTCX is a high-speed CMOS 8-bit shift register with serial input and parallel output capabilities. It features an 8-bit parallel input to serial output shift register with complementary buffered outputs for cascading. The device has a wide operating voltage range of 2 to 6 volts and can handle clock frequencies up to 40 MHz. It is designed for use in applications that require serial data transfer such as input expansion in microprocessor systems. The MM74HC165MTCX is available in a small TSSOP-16 package, making it ideal for space-constrained designs. Other features include low power consumption, latch-up performance, and ESD protection for reliability in various operating conditions