28C256-90I/D
EEPROM, 32KX8, 90ns, Parallel, CMOS, CDIP28Manufacturer: Microchip Technology
Categories: EEPROMs
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The Microchip Technology 28C256 is a 262,144-bit CMOS Electrically Erasable Programmable Read-Only Memory organized as 32,768 words by 8 bits. This device offers a 90ns parallel asynchronous access time, facilitating efficient data retrieval. It features automatic write, data polling, and a toggle bit for enhanced write operation management. With an endurance rating of 10,000 write cycles and a page write capability of 64 bytes, the 28C256 is suitable for applications requiring reliable non-volatile data storage. The device operates from a 4.5V to 5.5V supply and is housed in a 28-pin Ceramic Dual In-line Package (CDIP), specified for operation across an industrial temperature range of -40°C to +85°C. Its robust construction and performance characteristics make it a choice for industrial control, data logging, and embedded systems.
Additional Information
Series: 28C256RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Width | 15.2400 |
| Technology | CMOS |
| Length | 35.5600 |
| Access_Time_Max | 90.0000000000000000 |
| Additional_Feature | AUTOMATIC WRITE |
| Command_User_Interface | No |
| Data_Polling | Yes |
| Endurance | 10000.000000000000000 |
| JESD_30_Code | R-CDIP-T28 |
| Memory_Density | 262144.0000000000000000 |
| Memory_IC_Type | EEPROM |
| Memory_Organization | 32KX8 |
| Memory_Width | 8 |
| Number_of_Functions | 1 |
| Number_of_Terminals | 28 |
| Number_of_Words | 32768.0000000000000000 |
| Number_of_Words_Code | 32k |
| 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 | DIP |
| Package_Equivalence_Code | DIP28,.6 |
| Package_Shape | Rectangular |
| Package_Style | IN-LINE |
| Page_Size | 64 |
| Parallel_Serial | Parallel |
| Programming_Voltage | 5 |
| Seated_Height_Max | 4.0640 |
| Standby_Current_Max | 0.001000000000000 |
| Supply_Current_Max | 70.000000000000000 |
| Supply_Voltage_Max | 5.50000 |
| Supply_Voltage_Min | 4.50000 |
| Supply_Voltage_Nom | 5 |
| Surface_Mount | No |
| Terminal_Form | THROUGH-HOLE |
| Terminal_Pitch | 2.540 |
| Terminal_Position | Dual |
| Toggle_Bit | Yes |
| Write_Cycle_Time_Max_tWC | 2.0000000000000000 |
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