Texas Instruments CD54HC165 High Speed CMOS Logic 8-Bit Parallel-In/Serial-Out Shift Register CD54HC165F3A

The CD54HC165F3A is an 8-bit parallel-in/serial-out shift register designed for high-speed CMOS logic applications. It features buffered inputs and allows for asynchronous parallel loading of data when the SH/LD input is LOW. When SH/LD is HIGH, data can be shifted in serially at the SER input with each positive clock transition. The device provides complementary outputs and supports a fanout of 10 LSTTL loads for standard outputs and 15 LSTTL loads for bus driver outputs. This shift register operates over a wide temperature range of -55°C to 125°C and is compatible with both HC and HCT types, with operating voltage ranges of 2V to 6V for HC and 4.5V to 5.5V for HCT. The CD54HC165F3A is suitable for applications requiring high noise immunity and significant power reduction compared to LSTTL logic ICs. Its compact 16-pin CDIP package measures 24.38 mm x 6.92 mm, making it suitable for various electronic designs.