SMJ44C251B-12JDL
Video DRAM, 256KX4, 120ns, CMOS, CDIP28Manufacturer: Texas Instruments
Categories: DRAMs
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Texas Instruments SMJ44C251B-12JDL is a 1Mbit Video DRAM with a memory organization of 256K words by 4 bits. This CMOS component features a maximum access time of 120ns and supports Fast Page Mode with EDO, along with RAS-only, CAS-before-RAS, and hidden refresh modes. It includes a 512 x 4 SAM port and operates asynchronously with a nominal supply voltage of 5V. The SMJ44C251B-12JDL is housed in a 28-lead Ceramic Dual In-line Package (CDIP) with through-hole mounting. Applications for this component are found in graphics controllers and display systems.
Additional Information
Series: SMJ44C251RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Width | 10.1600 |
| Technology | CMOS |
| Access_Mode | FAST PAGE WITH EDO |
| Access_Time_Max | 120.0000000000000000 |
| Additional_Feature | RAS ONLY/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 | 70.0 |
| Operating_Temperature_Min | 0.0 |
| 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 | 3.5600 |
| Supply_Voltage_Max | 5.50000 |
| Supply_Voltage_Min | 4.50000 |
| Supply_Voltage_Nom | 5 |
| Surface_Mount | No |
| Terminal_Form | THROUGH-HOLE |
| Terminal_Pitch | 2.540 |
| Terminal_Position | Dual |
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