AT28C040-25LJ
EEPROM, 512KX8, 250ns, Parallel, CMOS, CQCC44Manufacturer: Microchip Technology
Categories: EEPROMs
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The Microchip Technology AT28C040-25LJ is a 4 Megabit (512K x 8) CMOS Electrically Erasable Programmable Read-Only Memory. It offers a fast 250ns access time and operates with a single 5V supply. This parallel interface device supports asynchronous operation and features automatic write capabilities. The memory organization is 512K words by 8 bits, providing 4,194,304 bits of storage. Designed for robust performance, it operates within a temperature range of -40°C to +85°C and is housed in a 44-lead Ceramic Chip Carrier (CQCC) package. This component is suitable for applications in industrial control, automotive systems, and data logging requiring non-volatile data retention. The write cycle time is a maximum of 10ms.
Additional Information
Series: AT28C040RoHS Status: RoHS CompliantManufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Length | 16.5500 |
| Width | 16.5500 |
| Technology | CMOS |
| Access_Time_Max | 250.0000000000000000 |
| Additional_Feature | AUTOMATIC WRITE |
| JESD_30_Code | S-CQCC-N44 |
| Memory_Density | 4194304.0000000000000000 |
| Memory_IC_Type | EEPROM |
| Memory_Organization | 512KX8 |
| Memory_Width | 8 |
| Number_of_Functions | 1 |
| Number_of_Terminals | 44 |
| Number_of_Words | 524288.0000000000000000 |
| Number_of_Words_Code | 512k |
| Operating_Mode | Asynchronous |
| Operating_Temperature_Max | 85.0 |
| Operating_Temperature_Min | -40.0 |
| Output_Characteristics | 3-State |
| Package_Body_Material | CERAMIC, METAL-SEALED COFIRED |
| Package_Code | QCCN |
| Package_Shape | Square |
| Package_Style | CHIP CARRIER |
| Parallel_Serial | Parallel |
| Programming_Voltage | 5 |
| Seated_Height_Max | 2.7400 |
| Supply_Voltage_Max | 5.50000 |
| Supply_Voltage_Min | 4.50000 |
| Supply_Voltage_Nom | 5 |
| Surface_Mount | Yes |
| Terminal_Form | NO LEAD |
| Terminal_Pitch | 1.270 |
| Terminal_Position | QUAD |
| Write_Cycle_Time_Max_tWC | 10.0000000000000000 |
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