28C256-20I/J
EEPROM, 32KX8, 200ns, Parallel, CMOS, CDIP28Manufacturer: Microchip Technology
Categories: EEPROMs
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Microchip Technology's 28C256-20I-J is a 262144-bit (32K x 8) CMOS serial EEPROM featuring a 200ns access time. This asynchronous parallel interface device operates within a 4.5V to 5.5V supply range and offers robust data retention with an endurance of 10,000 write cycles. Key features include Data Polling and a Toggle Bit for efficient write status monitoring. The component is housed in a 28-lead Ceramic DIP (CDIP28) package, suitable for through-hole mounting. Its 32K word organization and 8-bit data width make it well-suited for applications in industrial control, medical devices, and automotive systems requiring non-volatile data storage. The maximum write cycle time is 2ms, and it exhibits a standby current of 150µA.
Additional Information
Series: 28C256RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Length | 36.8300 |
| Width | 15.2400 |
| Technology | CMOS |
| Access_Time_Max | 200.0000000000000000 |
| Additional_Feature | AUTOMATIC WRITE |
| Command_User_Interface | No |
| Data_Polling | Yes |
| Endurance | 10000.000000000000000 |
| JESD_30_Code | R-GDIP-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, GLASS-SEALED |
| 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 | 5.4610 |
| 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 | 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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