128MB SDRAM using AS4C32M16SC chips

sonycman
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128MB SDRAM using AS4C32M16SC chips

Unread post by sonycman »

Hello!

It seems all the 128MB SDRAM boards is made of AS4C32M16SB chips.

But what if we try AS4C32M16SC?
These have even lower operating current - 60ma only, vs 110ma for AS4C32M16SB.
Not sure if they differs in any other way.

Will it be good idea to try?

Regards,
Vlad.
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legacypixels
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Re: 128MB SDRAM using AS4C32M16SC chips

Unread post by legacypixels »

Max clock on those is 133 MHz
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sonycman
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Re: 128MB SDRAM using AS4C32M16SC chips

Unread post by sonycman »

No need for more.
Many sdram boards based on 166MHz AS4C32M16SB-6TIN can't go much higher, actually.
ExCyber
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Re: 128MB SDRAM using AS4C32M16SC chips

Unread post by ExCyber »

It's been a long time since I've seen the relevant math, but as far as I know the delay imposed by the board and connectors is relatively constant in this frequency range. So with 133 MHz chips I would not expect it to be stable at much more than 110 MHz.
sonycman
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Re: 128MB SDRAM using AS4C32M16SC chips

Unread post by sonycman »

Okay, i see, thank you.

But it seems that no one tried these new chips in practice?
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