8-bit parallel-to-serial shift register for input expansion
The Texas Instruments SN74LV165APWRG3 is an 8-bit parallel-to-serial shift register from the 74LV low-voltage logic family. It accepts eight parallel inputs and shifts them out serially on a single data line, controlled by a shift/load input and a clock. The complementary outputs give you both true and inverted serial data without extra inversion logic. Typical applications include reading multiple switch or sensor inputs over a few microcontroller pins, keypad scanning, and general-purpose I/O expansion in industrial control panels, PLC I/O modules, and embedded systems where board space is tight.
Package and footprint — 16-TSSOP
Housed in a 16-TSSOP package (4.40 mm body width), it is a surface-mount part. The supplier device package is also 16-TSSOP.
Lifecycle and compliance — active, no LTB risk
TI lists the SN74LV165APWRG3 as Active with ROHS3 compliance. No end-of-life notice or last-time-buy window to track. For a BOM freeze, this part is a stable line item — no near-term need to qualify a second source unless you want dual-sourcing for supply resilience.