27HC291-45I/K
UVPROM, 2KX8, 45ns, CMOS, CQCC28Manufacturer: Microchip Technology
Categories: EPROMs
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Microchip Technology's 27HC291 series UVPROM, specifically the 27HC291-45I-K, offers a 16Kb memory density organized as 2K words by 8 bits. This CMOS device features a maximum access time of 45ns, enabling high-speed operation. The component utilizes asynchronous operation and a parallel interface with 3-state output characteristics. It is housed in a 28-terminal ceramic chip carrier package (CQCC28) with a window for UV erasure, suitable for surface mounting. Operating within a temperature range of -40°C to +85°C, it requires a supply voltage of 4.5V to 5.5V. This UVPROM is typically employed in industrial control systems, legacy equipment, and specialized computing applications where non-volatile program storage with erasable capabilities is critical.
Additional Information
Series: 27HC291RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Length | 11.4300 |
| Width | 11.4300 |
| Technology | CMOS |
| Access_Time_Max | 45.0000000000000000 |
| I_O_Type | COMMON |
| JESD_30_Code | S-CQCC-N28 |
| Memory_Density | 16384.0000000000000000 |
| Memory_IC_Type | UVPROM |
| Memory_Organization | 2KX8 |
| Memory_Width | 8 |
| Number_of_Functions | 1 |
| Number_of_Terminals | 28 |
| Number_of_Words | 2048.0000000000000000 |
| Number_of_Words_Code | 2k |
| Operating_Mode | Asynchronous |
| Operating_Temperature_Max | 85.0 |
| Operating_Temperature_Min | -40.0 |
| Output_Characteristics | 3-State |
| Package_Body_Material | CERAMIC, METAL-SEALED COFIRED |
| Package_Code | WQCCN |
| Package_Equivalence_Code | LCC28,.45SQ |
| Package_Shape | Square |
| Package_Style | CHIP CARRIER, WINDOW |
| Parallel_Serial | Parallel |
| Programming_Voltage | 12.75 |
| Seated_Height_Max | 3.3020 |
| Standby_Current_Max | 0.040000000000000 |
| Supply_Current_Max | 88.000000000000000 |
| Supply_Voltage_Max | 5.50000 |
| Supply_Voltage_Min | 4.50000 |
| Supply_Voltage_Nom | 5 |
| Surface_Mount | Yes |
| Terminal_Form | NO LEAD |
| Terminal_Pitch | 1.270 |
| Terminal_Position | QUAD |
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