Part Number: AT29C040A-10PI vs AT29C256-20PI

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Part Number: AT29C040A-10PI AT29C256-20PI
Manufacturer: Microchip Technology Microchip Technology
Description: IC FLASH 4MBIT 100NS 32DIP Memory IC AT29C256
Quantity Available: Available Available
Datasheets: AT29C040A AT29C256
Mounting Type Through Hole Through Hole
Package / Case 32-DIP (0.600, 15.24mm) 28-DIP (0.600, 15.24mm)
Supplier Device Package 32-PDIP 28-PDIP
Operating Temperature -40°C~85°C TC -40°C~85°C TC
Packaging Tube Tube
Published 1997 2016
Part Status Obsolete Obsolete
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
Technology FLASH FLASH
Voltage - Supply 4.5V~5.5V 4.5V~5.5V
Base Part Number AT29C040 AT29C256
Memory Size 4Mb 512K x 8 256Kb 32K x 8
Memory Type Non-Volatile Non-Volatile
Access Time 100ns 200ns
Memory Format FLASH FLASH
Memory Interface Parallel Parallel
Write Cycle Time - Word, Page 10ms 10ms
RoHS Status Non-RoHS Compliant Non-RoHS Compliant
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