Replacement of flash & SDRAM of BF 609 kit design

Processors & DSP Engr. Hina Oct 23, 2019 00:00 1 replies Original on forum ↗

Engr. Hina Question

Oct 23, 2019 00:00

I am working on a BF609 based hardware.I have kept BF 609 evaluation kit as reference.

BF609 kit has flash memory PC28F128P33B which is obsolete now.As replacement i have choosed MT28EW128AB1A

Both are 128 Mb but difference is that

PC28F128P33B has

Write Cycle Time & Access Time = 85ns

MT28EW128AB1A has

Write Cycle Time=60ns

& Access Time = 95ns

with the above mentioned configuration can MT28EW128AB1A be used with BF609.how these times are configured??

Secondly,

SDRAM being used in BF609 MT47H64M16HR is also obsolete .Part number available is MT47H64M16NF

MT47H64M16HR speed is 333 MHZ while MT47H64M16NF is 400MHZ.

will the part number MT47H64M16NF compatible with BF609..??

And ,PLs let me know the price of evaluation kit for BF504/506..??

and at last ,Y the kits are still using obsolete parts??

Thanks!

https://www.digikey.com/product-detail/en/micron-technology-inc/MT28EW128ABA1HPC-0SIT/557-1777-ND/6595666

https://www.digikey.com/product-detail/en/micron-technology-inc/PC28F128P33B85A/PC28F128P33B85A-ND/1869954

PDFPDFPDF

1Gb_DDR2-1282415.pdf2.3 MBMT28EW_QLHP_128_ABA_0SIT.pdf1.1 MB314749_P33_130nm_Discrete_DS-(1).pdf1.3 MB

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ADIApproved Reply

Oct 25, 2019 00:00

Hi,

This issue is handled through private support. To avoid duplication of efforts, you can continue the discussions through private support and we will post the final resolution here.

Regards,
Anand Selvaraj.

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