SMJ44C251B-12HMMT
Video DRAM, 256KX4, 120ns, MOS, CDSO28Manufacturer: Texas Instruments
Categories: DRAMs
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Texas Instruments SMJ44C251B-12HMMT is a 1 Megabit Video DRAM with a Fast Page mode access. This component is organized as 256K words by 4 bits, offering a memory density of 1048576 bits. It features an access time of 120 nanoseconds and operates with a supply voltage range of 4.5V to 5.5V, nominal at 5V. The SMJ44C251 series supports CAS Before RAS/Hidden Refresh and incorporates a 512 x 4 SAM port, enabling dual port functionality. Built on MOS technology, this device is housed in a 28-terminal Ceramic, Metal-Sealed Cofired Small Outline package, suitable for surface mounting. Its operating temperature range is -55°C to +125°C. This Video DRAM is commonly utilized in graphics subsystems and display controllers for industrial and military applications.
Additional Information
Series: SMJ44C251RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Length | 18.2850 |
| Width | 10.1600 |
| Technology | MOS |
| Access_Mode | FAST PAGE |
| Access_Time_Max | 120.0000000000000000 |
| Additional_Feature | CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT |
| JESD_30_Code | R-CDSO-N28 |
| 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 |
| Package_Body_Material | CERAMIC, METAL-SEALED COFIRED |
| Package_Code | SON |
| Package_Shape | Rectangular |
| Package_Style | SMALL OUTLINE |
| Seated_Height_Max | 2.5400 |
| 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 | Dual |
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