Hi guys,
I have an application in which I have to read / write data to an 5V OTP EPROM (AT27c020) from an MCU. I have done this many times in the past from
5V microcontrollers like ATmega128. Now I want to do the same from a 3V device (LM3S9B90). MCU inputs are 5V tolerant. I don't want to use 3V EPROMS since they are rare. Also I don't want to use level shifters since they increase cost and board complexity. As far as I can see both devices are CMOS TTL compatible so I think that direct interface would be no problem logic level-wise. Am I correct or I am missing something ?Thanks in advance,
Angelo
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