28C256-90/K
EEPROM, 32KX8, 90ns, Parallel, CMOS, CQCC32Manufacturer: Microchip Technology
Categories: EEPROMs
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The Microchip Technology 28C256-90-K is a 262Kbit (32K x 8) CMOS electrically erasable programmable read-only memory. This parallel interface EEPROM offers a maximum access time of 90ns, supporting high-speed data retrieval. Featuring an asynchronous operating mode and 3-state outputs, it is designed for applications requiring efficient data storage and manipulation. The device supports automatic write operations and includes data polling and toggle bit functionality for status monitoring. With an endurance rating of 10,000 write cycles and a page write size of 64 bytes, it is suitable for various industrial and commercial applications. The 28C256-90-K operates within a supply voltage range of 4.5V to 5.5V and is housed in a 32-lead ceramic quad flat chip carrier (CQCC32) package, measuring 13.97mm in length and 11.43mm in width. This component is commonly found in industrial control systems, medical devices, and consumer electronics where reliable non-volatile data storage is critical.
Additional Information
Series: 28C256RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Width | 11.4300 |
| Technology | CMOS |
| Length | 13.9700 |
| Access_Time_Max | 90.0000000000000000 |
| Additional_Feature | AUTOMATIC WRITE |
| Command_User_Interface | No |
| Data_Polling | Yes |
| Endurance | 10000.000000000000000 |
| JESD_30_Code | R-CQCC-N32 |
| Memory_Density | 262144.0000000000000000 |
| Memory_IC_Type | EEPROM |
| Memory_Organization | 32KX8 |
| Memory_Width | 8 |
| Number_of_Functions | 1 |
| Number_of_Terminals | 32 |
| Number_of_Words | 32768.0000000000000000 |
| Number_of_Words_Code | 32k |
| Operating_Mode | Asynchronous |
| Operating_Temperature_Max | 70.0 |
| Operating_Temperature_Min | 0.0 |
| Output_Characteristics | 3-State |
| Package_Body_Material | CERAMIC, METAL-SEALED COFIRED |
| Package_Code | QCCN |
| Package_Equivalence_Code | LCC32,.45X.55 |
| Package_Shape | Rectangular |
| Package_Style | CHIP CARRIER |
| Page_Size | 64 |
| Parallel_Serial | Parallel |
| Programming_Voltage | 5 |
| Seated_Height_Max | 3.0480 |
| Standby_Current_Max | 0.000150000000000 |
| Supply_Current_Max | 70.000000000000000 |
| 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 |
| Toggle_Bit | Yes |
| Write_Cycle_Time_Max_tWC | 2.0000000000000000 |
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