8-bit serial-in parallel-out with tri-state bus hold
The SN74AHCT595DR is an 8-bit shift register from the 74AHCT family, accepting serial data and outputting it in parallel through a tri-state latch. The separate storage register and shift register clock let you update the outputs without disturbing the shift operation — useful when driving a parallel bus or LED array from a microcontroller's SPI-like serial stream.
16-SOIC footprint and supply formats
Housed in a 16-SOIC package with a 3.90 mm body width (the narrow SOIC, not the 7.50 mm wide-body). The supplier device package is 16-SOIC, and the mounting is surface mount.
Active production, no lifecycle concern
ROHS3 compliant. No NRND or EOL notice is on file — this is a standard catalog part from Texas Instruments, not a phase-out line. For a BOM that needs a 5 V shift register in a 16-SOIC footprint, this part is a straightforward choice without last-time-buy pressure.
Single-element 8-bit architecture
The device contains one element with 8 bits per element. The output type is tri-state, so the parallel outputs can be high-impedance when the output-enable pin is inactive — letting multiple shift registers share the same bus without contention.