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SN74HC595A: Cross forHV509

Abigail Leonardi
Intellectual 1765 points
Part Number: SN74HC595A
Other Parts Discussed in Thread: CD4094B, SN74HC595

Hi all,

I'm trying to come up with a suitable alternative for a customer who currently uses the HV509  from Microchip. I was informed the SN74HC595ADBR may be an option, but was hoping to ask for help to compare the two. I’m trying to figure out what some of the key care-abouts for these types of components may be, and how our part compares.

Thank you! Any help would be greatly appreciated. 

  • +1
    TI__Intellectual 1100 points

    Hi Abigail,

    These devices are similar in function, though vary greatly in terms of specifications.

    First and foremost, the SN74HC595 is for applications between 2V and 6V while the competitor part appears to be able to handle up to 200V. If the customer's application needs anything above 6V, the HC595 is not going to be able to be used. If the customer is operating under 18V, the CD4094B could be used.

    It is worth noting that the function of the competitor device do not match ours exactly. Theirs is a 16-bit shift register while ours are 8-bit. It also appears to have some additional HV circuitry that ours do not. In terms of other key specifications, our devices are rated for higher speeds than the competitor's that you mentioned so that should not be a concern.

    If you have any additional information about the customer's application, such as voltages or schematics, we might be able to provide some more insight into Logic devices that could be used.