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BS2P24 homebrew board — Parallax Forums

BS2P24 homebrew board

ForrestForrest Posts: 1,341
edited 2005-04-22 21:36 in BASIC Stamp
I've purchased a BS2P24 interpreter chip and am designing a small developer board for it. I'm trying to decide if I need to include an LT1121 regulator with brownout circuit - or can I simply use a LM2940-5 to power the board. I noticed the BS2SX OEM board uses a LM2940-5 while the BS2SX-IC has the LT1121. Will a low voltage condition corrupt or damage the BS2P24 interpreter or the corrupt PBasic tokens stored on the 24LC128 EEPROM?

Comments

  • Paul BakerPaul Baker Posts: 6,351
    edited 2005-04-22 21:36
    If there is a brown out when you are writing to the EEPROM data corruption can occur, but the EEPROM you listed is capable of operation down to 2.5V so the brownout would have to be excessive to affect the EEPROM. The microcontroller will likely have problems driving the data and clock lines (another potential source of errors) before the EEPROM itself will start to have problems.
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