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Part Number = HY514400J70
Manufacturer Name = Hyundai Micro Electronics
Description = General Purpose Dynamic RAM - 1024/16ms refresh
Number of Words = 1M
Bits Per Word = 4
t(acc) Max. (S) = 70n
tW Min (S) = 130n
Output Config = 3-State
P(D) Max.(W) Power Dissipation = 600m
Nom. Supp (V) = 5.0
Package = SOJ-20/26
Pins = 26
Military = N
Technology = CMOS
Hyundai Electronics is now Hynix. Maybe their site will give you some clues.
It has TWO of those on it. The last chip is different. I can tell you that the module is parity. Parity = # of chips divisible by 3. Nonparity = divisible by 2.
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Part Number = HY514400J70
Manufacturer Name = Hyundai Micro Electronics
Description = General Purpose Dynamic RAM - 1024/16ms refresh
Number of Words = 1M
Bits Per Word = 4
t(acc) Max. (S) = 70n
tW Min (S) = 130n
Output Config = 3-State
P(D) Max.(W) Power Dissipation = 600m
Nom. Supp (V) = 5.0
Package = SOJ-20/26
Pins = 26
Military = N
Technology = CMOS
Hyundai Electronics is now Hynix. Maybe their site will give you some clues.
Based on an old Ars Technicha article here...
It's probably a 1 megabyte parity simm.
PSN: Broichan