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回复  admin
ttps://www.datasheets360.com/pdf/2009148678025692463
I'm checking the datasheet, this ...
OffGao 发表于 2022-5-3 23:08



    As an user... Just to add diagnostic info, please check ohm from every pin, to dip, and sure pin to pin with no high ohm between?

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回复  Albano.Matos


I looked it up.
All pins are connected(0Ω), and not shorted near pins.
A ...
OffGao 发表于 2022-5-4 11:19

As an User:.... Nice answer. Now Waiting , hopefully, Admin gave further tips or new answer.
Rgds

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回复  OffGao

no useful at all. I tested with very low speed , can not  write to next address.
admin 发表于 2022-6-26 07:56


As an User.... Maybe this IC is very sensitive is this version PLCC44. If you ask for slower speed why not trying to handle the 'need for speed'. I've 3 sockets, two ZIF
from different sources, and the one you have , but no IC to test.
I would test at least with all of them, but with only one option, i can remember add a decoupling
power capacitor, as i can't have the socket in a black pcb version, neither the speed down
option....just guessing, it works partially now. Please try it if you understand what i'm trying
to tell  :-(

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