74AHC595BQ,115

The Nexperia 74AHC595BQ,115 is an 8-bit serial-in/serial-out or parallel-out shift register with output latches. It supports a wide supply voltage range from 2.0 V to 5.5 V and operates in temperatures from -40 °C to +125 °C.

This device features separate clocks for the shift and storage registers, a serial input (DS), and a serial output (Q7S) for cascading. The asynchronous reset (MR) input allows for quick resetting of the shift register. Data is shifted on the LOW-to-HIGH transitions of the SHCP input, and transferred to the storage register on a LOW-to-HIGH transition of the STCP input.

The outputs are 3-state, becoming high-impedance when the output enable input (OE) is HIGH. The 74AHC595 variant operates with CMOS input levels, while the 74AHCT595 variant features TTL compatible inputs. Both variants have overvoltage tolerant inputs up to 5.5 V, making them suitable for mixed voltage environments.

Packaged in a 16-DHVQFN, this shift register is surface-mountable. Its applications include serial-to-parallel data conversion and remote control holding registers. The device offers high noise immunity and low power dissipation characteristic of CMOS technology.