SMJ44C251-1JDM
Video DRAM, 256KX4, 100ns, CMOS, CDIP28Manufacturer: Texas Instruments
Categories: DRAMs
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Texas Instruments SMJ44C251-1JDM is a 1-Mbit CMOS Video DRAM with a memory organization of 256K x 4 bits. This device offers a maximum access time of 100ns and operates with a supply voltage range of 4.75V to 5.25V. The SMJ44C251 series features include CAS-before-RAS and hidden refresh capabilities, along with a 512 x 4 SAM port for enhanced functionality. Designed for demanding applications, it supports fast page mode access. The component is housed in a 28-lead ceramic dual in-line package (CDIP28) with through-hole mounting. This Video DRAM is suitable for use in graphics controllers and display systems across various industrial and consumer electronics segments.
Additional Information
Series: SMJ44C251RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Length | 36.8300 |
| Width | 10.1600 |
| Technology | CMOS |
| Access_Mode | FAST PAGE |
| Access_Time_Max | 100.0000000000000000 |
| Additional_Feature | CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT |
| JESD_30_Code | R-CDIP-T28 |
| 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 | 125.0 |
| Operating_Temperature_Min | -55.0 |
| Output_Characteristics | 3-State |
| Package_Body_Material | CERAMIC, METAL-SEALED COFIRED |
| Package_Code | DIP |
| Package_Shape | Rectangular |
| Package_Style | IN-LINE |
| Refresh_Cycles | 512 |
| Seated_Height_Max | 4.4450 |
| Supply_Voltage_Max | 5.25000 |
| Supply_Voltage_Min | 4.75000 |
| Supply_Voltage_Nom | 5 |
| Surface_Mount | No |
| Terminal_Form | THROUGH-HOLE |
| Terminal_Pitch | 2.540 |
| Terminal_Position | Dual |
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