27HC256-55I/VS
OTP ROM, 32KX8, 55ns, CMOS, PDSO28Manufacturer: Microchip Technology
Categories: OTP ROMs
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The Microchip Technology 27HC256-55I-VS is a high-performance, 262,144-bit (32K x 8) CMOS One-Time Programmable (OTP) Read-Only Memory. Featuring an asynchronous operating mode and a maximum access time of 55ns, this component is designed for demanding applications. It operates from a standard 4.5V to 5.5V supply range with a nominal voltage of 5V. The 27HC256-55I-VS utilizes a 28-lead Thin Small Outline Package (TSOP1) with a 0.55mm terminal pitch, suitable for surface-mount integration. Its output characteristics are 3-state, and it supports common I/O. This device is fabricated using advanced CMOS technology and is rated for operation across an industrial temperature range of -40°C to +85°C. Applications include industrial control, automotive systems, and legacy system upgrades where reliable, non-volatile program storage is essential.
Additional Information
Series: 27HC256RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Length | 11.8000 |
| Width | 8.0000 |
| 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 | 85.0 |
| Operating_Temperature_Min | -40.0 |
| Output_Characteristics | 3-State |
| Package_Body_Material | PLASTIC/EPOXY |
| Package_Code | TSOP1 |
| Package_Equivalence_Code | TSSOP28,.53,22 |
| Package_Shape | Rectangular |
| Package_Style | SMALL OUTLINE, THIN PROFILE |
| Parallel_Serial | Parallel |
| Programming_Voltage | 13 |
| Seated_Height_Max | 1.2000 |
| Standby_Current_Max | 0.040000000000000 |
| Supply_Current_Max | 65.000000000000000 |
| Supply_Voltage_Max | 5.50000 |
| Supply_Voltage_Min | 4.50000 |
| Supply_Voltage_Nom | 5 |
| Surface_Mount | Yes |
| Terminal_Form | Gull Wing |
| Terminal_Pitch | 0.550 |
| Terminal_Position | Dual |
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