27C256-20I/SO
32KX8, 200ns, CMOS, PDSO28Manufacturer: Microchip Technology
Categories: EPROMs
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Microchip Technology's 27C256 series EPROM, part number 27C256-20I-SO, offers a 32K x 8 memory organization with a maximum access time of 200ns. This CMOS device utilizes a 28-lead Small Outline Package (SOP), specifically a PDSO28 footprint with a 1.27mm terminal pitch, suitable for surface-mount applications. Its asynchronous operating mode and 3-state output characteristics are designed for efficient data retrieval. The component supports a parallel interface and requires a programming voltage of 13V. With a memory density of 262144 bits, it features a data retention exceeding 200 years. Operating within a temperature range of -40°C to +85°C, it consumes a standby current of 3mA and a maximum supply current of 25mA, powered by a nominal 5V supply. This EPROM is commonly found in industrial control systems and consumer electronics.
Additional Information
Series: 27C256RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Length | 17.9000 |
| Width | 7.5000 |
| Technology | CMOS |
| Access_Time_Max | 200.0000000000000000 |
| Additional_Feature | DATA RETENTION >200 YEARS |
| I_O_Type | COMMON |
| JESD_30_Code | R-PDSO-G28 |
| Memory_Density | 262144.0000000000000000 |
| Memory_IC_Type | EPROM |
| 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 | PLASTIC/EPOXY |
| Package_Code | SOP |
| Package_Equivalence_Code | SOP28,.4 |
| Package_Shape | Rectangular |
| Package_Style | SMALL OUTLINE |
| Parallel_Serial | Parallel |
| Programming_Voltage | 13 |
| Seated_Height_Max | 2.6500 |
| Standby_Current_Max | 0.003000000000000 |
| Supply_Current_Max | 25.000000000000000 |
| Supply_Voltage_Max | 5.50000 |
| Supply_Voltage_Min | 4.50000 |
| Supply_Voltage_Nom | 5 |
| Surface_Mount | Yes |
| Terminal_Form | Gull Wing |
| Terminal_Pitch | 1.270 |
| Terminal_Position | Dual |
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