D27C400-200V10
UV-Erasable PROM (EPROM) - 512kx8 Org.Possible

From Intel

Bits Per Word16
MilitaryN
Nom. Supp (V)5.0
Number of Chip Selects1
Number of Words256k
Output Config3-State
PackageDIP
Pins40
Program Voltage (V)12.7
TechnologyCMOS
t(a) Max. (s) Access Time200n

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