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jitendravlsi
Joined: 21 Jul 2008
Posts: 22
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 01 Jul 2009 16:57 design without level shifter |
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Hi all!
In my design one of the block which is Flash/OTP(64 kb) is designed for 1.8v,
but my other blocks and core are working at 1.2v and IO voltage is also 1.2v.
Is it possible to implement the entire design without level shifter (1.2 - 1.8 ) in
between the two blocks communicating with each other(one at 1.2v and other at
1.8v). There is a condition that I cant change the IO voltage(1.2v) and my Flash(1.8v) for my entire design.
If possible then what are the ways & how?
Will the performance degrade?
I am using Cadence SoC encounter.
Thanks in adv.
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jitendravlsi
Joined: 21 Jul 2008
Posts: 22
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02 Jul 2009 12:00 Re: design without level shifter |
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| somebody reply please ............
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02 Jul 2009 12:00 Ads |
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mikersia
Joined: 19 Feb 2009
Posts: 41
Helped: 2
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02 Jul 2009 12:25 design without level shifter |
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| typically a Flash OTP require high voltage for programming, which is generated internally by charge pump. This voltage usually is multiple of supply voltage (i.e. 1.8V in this case). So changing of supply voltage from 1.8V to 1.2V might destroy OTP programming conditions. Be carefull,- you have to provide all requirements of OTP block!
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