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Supply voltage for read operation

Question asked by Casella Roberto on Oct 3, 2016
Latest reply on Oct 10, 2016 by vicentegomez

I'm using an MC9S08LC60 HCS08 family device. I found the following specification about supply voltage for read operation:


0 < Fbus < 8MHz           ----     Vread 1,8 to 3,6V

0 < Fbus < 20MHz         ----     Vread 2,08 to 3,6V


Where is the difference? If I use an 8Mhz external resonator to obtain an internal 2Mhz bus clock which voltage range must  I consider? 


Thank you