AT28HC256-90JU*SL383
EEPROM Parallel 256K-bit 32K x 8 5V 32-Pin PLCC T/R

From Atmel

CategoryEEPROM
Data Retention10 Year
Density256 Kb
DescriptionValue
Hardware Data ProtectionYes
Interface TypeParallel
ManufacturerAtmel
Maximum Random Access Time90 ns
Operating Temperature-40 to 85 °C
Organization32Kx8
Package32PLCC
Programming Voltage4.5 to 5.5 V
Typical Operating Supply Voltage5 V

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