27HC256-55/SO
OTP ROM, 32KX8, 55ns, CMOS, PDSO28Manufacturer: Microchip Technology
Categories: OTP ROMs
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Microchip Technology presents the 27HC256-55-SO, a 32K x 8 One-Time Programmable (OTP) Read-Only Memory (ROM) device. This CMOS component offers a maximum access time of 55 nanoseconds, facilitating efficient data retrieval. The memory organization is 32,768 words by 8 bits, providing a total memory density of 262,144 bits. It operates asynchronously with common I/O, featuring 3-state outputs for flexible bus interfacing. The 27HC256 series utilizes a standard 5V supply voltage range (4.5V to 5.5V) and is housed in a 28-lead Small Outline Package (SOP) with a 1.27mm terminal pitch, suitable for surface-mount applications. This component is commonly employed in industrial control systems, consumer electronics, and legacy system designs requiring non-volatile program or data storage. The programming voltage is 13V.
Additional Information
Series: 27HC256RoHS 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 | 55.0000000000000000 |
| I_O_Type | COMMON |
| JESD_30_Code | R-PDSO-G28 |
| Memory_Density | 262144.0000000000000000 |
| Memory_IC_Type | OTP ROM |
| 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 | 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 | 0.035000000000000 |
| Supply_Current_Max | 104.000000000000000 |
| 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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