28C256-25/D
EEPROM, 32KX8, 250ns, Parallel, CMOS, CDIP28Manufacturer: Microchip Technology
Categories: EEPROMs
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Microchip Technology's 28C256-25-D is a 262,144-bit CMOS Electrically Erasable Programmable Read-Only Memory (EEPROM) organized as 32K words by 8 bits. This parallel interface device features an access time of 250 nanoseconds, supporting asynchronous operation. The 28C256 series offers automatic write features and data polling for efficient operation. It is built on CMOS technology, operating from a 4.5V to 5.5V supply range with a nominal 5V requirement. The component is housed in a 28-pin Ceramic Dual In-line Package (CDIP) with through-hole mounting. Applications for this memory component span industrial control, data logging, and embedded systems requiring reliable non-volatile data storage. The endurance rating is 10,000 write cycles.
Additional Information
Series: 28C256RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Length | 35.5600 |
| Width | 15.2400 |
| Technology | CMOS |
| Access_Time_Max | 250.0000000000000000 |
| 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 | 70.0 |
| Operating_Temperature_Min | 0.0 |
| 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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