TMS44C251-1DZL
Video DRAM, 256KX4, 100ns, CMOS, PDSO28Manufacturer: Texas Instruments
Categories: DRAMs
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Texas Instruments TMS44C251 Series Video DRAM, part number TMS44C251-1DZL, offers a 256K x 4 memory organization with a maximum access time of 100ns. This CMOS component operates from a 5V supply voltage (4.75V to 5.25V) and features a 28-terminal SOJ package with a 1.27mm terminal pitch. Supporting Fast Page mode and RAS-only/CAS before RAS refresh modes, it includes a 512 x 4 SAM port for enhanced functionality. The device is suitable for surface mounting and operates within a temperature range of 0°C to 70°C. Its capabilities make it applicable in graphics controllers and display systems within the consumer electronics and industrial automation sectors.
Additional Information
Series: TMS44C251RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Width | 10.1600 |
| Technology | CMOS |
| Length | 18.4150 |
| Access_Mode | FAST PAGE |
| Access_Time_Max | 100.0000000000000000 |
| Additional_Feature | RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT |
| JESD_30_Code | R-PDSO-J28 |
| Memory_Density | 1048576.0000000000000000 |
| Memory_IC_Type | VIDEO DRAM |
| Memory_Organization | 256KX4 |
| Memory_Width | 4 |
| Number_of_Functions | 1 |
| Number_of_Ports | 2 |
| Number_of_Terminals | 28 |
| Number_of_Words | 262144.0000000000000000 |
| Number_of_Words_Code | 256k |
| Operating_Mode | Asynchronous |
| Operating_Temperature_Max | 70.0 |
| Operating_Temperature_Min | 0.0 |
| Output_Characteristics | 3-State |
| Package_Body_Material | PLASTIC/EPOXY |
| Package_Code | SOJ |
| Package_Shape | Rectangular |
| Package_Style | SMALL OUTLINE |
| Refresh_Cycles | 512 |
| Seated_Height_Max | 3.7600 |
| Supply_Voltage_Max | 5.25000 |
| Supply_Voltage_Min | 4.75000 |
| Supply_Voltage_Nom | 5 |
| Surface_Mount | Yes |
| Terminal_Form | J BEND |
| Terminal_Pitch | 1.270 |
| Terminal_Position | Dual |
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