27HC256T-70I/SO
OTP ROM, 256KX16, 200ns, CMOS, PDSO28Manufacturer: Microchip Technology
Categories: OTP ROMs
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Microchip Technology's 27HC256T-70I-SO is a 256K x 16-bit One-Time Programmable (OTP) Read-Only Memory (ROM) utilizing CMOS technology. This component offers a maximum access time of 200ns and operates asynchronously. The memory organization of 256K words by 16 bits provides a total density of 4Mbits. Designed for surface mounting, it is housed in a 28-lead plastic small outline package (PDSO28) with a 1.27mm terminal pitch. The 27HC256 series operates over an industrial temperature range of -40°C to +85°C and requires a nominal supply voltage of 5V. Typical applications for this type of memory include industrial control systems, automotive electronics, and legacy system upgrades requiring robust, non-volatile code storage. Its 3-state output characteristic allows for bus-based systems.
Additional Information
Series: 27HC256RoHS Status: Manufacturer Lead Time: Product Status: Contact MfrPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Technology | CMOS |
| Access_Time_Max | 200.0000000000000000 |
| I_O_Type | COMMON |
| JESD_30_Code | R-PDSO-G28 |
| Memory_Density | 4194304.0000000000000000 |
| Memory_IC_Type | OTP ROM |
| Memory_Organization | 256KX16 |
| Memory_Width | 16 |
| Number_of_Functions | 1 |
| Number_of_Terminals | 28 |
| Number_of_Words | 32768.0000000000000000 |
| Number_of_Words_Code | 256k |
| 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 |
| Standby_Current_Max | 0.040000000000000 |
| Supply_Current_Max | 70.000000000000000 |
| Supply_Voltage_Nom | 5 |
| Surface_Mount | Yes |
| Terminal_Form | Gull Wing |
| Terminal_Pitch | 1.270 |
| Terminal_Position | Dual |
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