Part Number: AT28HC64B-90PU vs AT28HC64B-70SI

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Part Number: AT28HC64B-90PU AT28HC64B-70SI
Manufacturer: Microchip Technology Microchip Technology
Description: IC EEPROM 64KBIT 90NS 28DIP Memory IC AT28HC64
Quantity Available: Available Available
Datasheets: AT28HC64B AT28HC64B
Mounting Type Through Hole Surface Mount
Package / Case 28-DIP (0.600, 15.24mm) 28-SOIC (0.295, 7.50mm Width)
Supplier Device Package 28-PDIP 28-SOIC
Operating Temperature -40°C~85°C TC -40°C~85°C TC
Packaging Tube Tube
Published 1997 1997
Part Status Obsolete Obsolete
Moisture Sensitivity Level (MSL) 1 (Unlimited) 2 (1 Year)
Technology EEPROM EEPROM
Voltage - Supply 4.5V~5.5V 4.5V~5.5V
Base Part Number AT28HC64 AT28HC64
Memory Size 64Kb 8K x 8 64Kb 8K x 8
Memory Type Non-Volatile Non-Volatile
Access Time 90ns 70ns
Memory Format EEPROM EEPROM
Memory Interface Parallel Parallel
Write Cycle Time - Word, Page 10ms 10ms
RoHS Status ROHS3 Compliant Non-RoHS Compliant
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