It really give us a hit when we are looking for this part 74HC595BQ 115 Nexperia USA Inc, very long lead time from digikey, however, the deadtime of PCB assembly is right on the corner, customer will take them to an exhibition after programming and testing.
Luckily one of our suppliers have enough stock, original parts, thank godness, we finished this job on time perfectly.
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Specified from -40 °C to +85 °C and from -40 °C to +125 °C
2 General description
The 74HC595; 74HCT595 is an 8-bit serial-in/serial or parallel-out shift register with a storage register and 3-state outputs. Both the shift and storage register have separateclocks. The device features a serial input (DS) and a serial output (Q7S) to enablecascading and an asynchronous reset MR input. A LOW on MR will reset the shiftregister. Data is shifted on the LOW-to-HIGH transitions of the SHCP input. The data inthe shift register is transferred to the storage register on a LOW-to-HIGH transition of
the STCP input. If both clocks are connected together, the shift register will always beone clock pulse ahead of the storage register. Data in the storage register appears atthe output whenever the output enable input (OE) is LOW. A HIGH on OE causes theoutputs to assume a high-impedance OFF-state. Operation of the OE input does notaffect the state of the registers. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.