TMS4256-15FME
Page Mode DRAM, 256KX1, 150ns, NMOS, PQCC18Manufacturer: Texas Instruments
Categories: DRAMs
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Texas Instruments TMS4256 series, part number TMS4256-15FME, is a 256K x 1 bit NMOS DRAM operating in page mode. This component features an access time of 150ns and supports various refresh modes including RAS ONLY, CAS BEFORE RAS, and HIDDEN REFRESH. The memory organization facilitates efficient data retrieval through its page mode operation. It is housed in an 18-terminal Plastic J-Bend Chip Carrier (PQCC) package with a surface-mount design. The operating temperature range is -40°C to +85°C with a supply voltage range of 4.5V to 5.5V. This device is suitable for applications in industrial control, telecommunications, and consumer electronics requiring high-density memory solutions.
Additional Information
Series: TMS4256RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Length | 12.4460 |
| Width | 7.3660 |
| Technology | NMOS |
| Access_Mode | PAGE |
| Access_Time_Max | 150.0000000000000000 |
| Additional_Feature | RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH |
| JESD_30_Code | R-PQCC-J18 |
| Memory_Density | 262144.0000000000000000 |
| Memory_IC_Type | PAGE MODE DRAM |
| Memory_Organization | 256KX1 |
| Memory_Width | 1 |
| Number_of_Functions | 1 |
| Number_of_Ports | 1 |
| Number_of_Terminals | 18 |
| Number_of_Words | 262144.0000000000000000 |
| 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 | QCCJ |
| Package_Shape | Rectangular |
| Package_Style | CHIP CARRIER |
| Refresh_Cycles | 256 |
| Seated_Height_Max | 3.5300 |
| Supply_Voltage_Max | 5.50000 |
| Supply_Voltage_Min | 4.50000 |
| Supply_Voltage_Nom | 5 |
| Surface_Mount | Yes |
| Terminal_Form | J BEND |
| Terminal_Pitch | 1.270 |
| Terminal_Position | QUAD |
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