EEVblog Electronics Community Forum
Electronics => Projects, Designs, and Technical Stuff => Topic started by: hobbyelectronics on August 26, 2024, 11:01:15 am
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Hi,
This may sound like a silly question , I already have my own answer, but just need to confirm what I think.
I need to interface a Broadcom Opto isoloator to the input of a RP2040 MCU.
The opto is an ACPL-064-xxx (000, 060 or 560, think its just the reeling / IEC/EN/DIN EN Difference)
But some suppliers state the output of the 3 versions differently. Such as CMOS output, Logic gate output etc.
I need these to work with the input to a RP2040 MCU. I am sure they all work, but just need to confirm the difference between the 3 versions.
Is it only the tape/reeling & IEC/EB/DIN compliance? (Reading page 3 of the Broadcom data sheet)
Seems like it is to me, and that the push/pull output on all three version is the same. Just need to be sure, in case I have missed something.
Thanks
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Read the datasheet, look at the output voltage level specification, see if it complies with your following device's input voltage level specification.
Anyway whether outputs are CMOS/TTL usually doesn't matter that much these days as long as both devices are supplied with the same voltage, data lines aren't excessively loaded and you aren't doing crazy high frequency signaling or something.
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Thanks for your reply.
I was trying to confirm if the different versions (000E, 060E, 500E,560E) have any difference in the output. Seems like it mainly is if they are tape/reel or IEC/EN/DIN compliant.
Looks like either of the 4 versions will be good. Its only fairly slow monitor of a off board signal anyway.
I spent far too much time reading data sheets, and read this one many times over. I have used them for PIC circuits in the past without any issues.
I think I was questioning this as various suppliers state the output as either logic state or CMOS for the different -xxx types, but they all seem to have the same push-pull output.
Will pick the cheapest I think.
Thanks