What this 8-bit shift register does
The SN74HC164NS is an 8-bit serial-to-parallel shift register from TI's 74HC family. It takes serial data on one input line and, after eight clock pulses, presents the full 8-bit word on parallel outputs. The push-pull outputs can source or sink current directly, so you can drive LEDs or small relays without a buffer. The 74HC logic family means it runs from a 2V to 6V supply, making it compatible with both 3.3V and 5V systems.
Where you would use it
Typical applications include expanding the output pins of a microcontroller — think adding eight more outputs for controlling LEDs, seven-segment displays, or latching relays. The 14-SOIC package is a common footprint that fits on a standard 0.1-inch-pitch prototyping board with adapter.
Lifecycle and sourcing reality
The SN74HC164NS is listed as Active and ROHS3 compliant. For a BOM line, this part carries no last-time-buy risk. Pricing and availability are confirmed at quote time through independent distribution — submit an RFQ for current lead times and volume pricing.
