TMS44C251-12DJL
Video DRAM, 256KX4, 120ns, CMOS, PDSO28Manufacturer: Texas Instruments
Categories: DRAMs
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The Texas Instruments TMS44C251-12DJL is a 1 Mbit Video DRAM featuring a 256K x 4 organization. This CMOS component operates with a maximum access time of 120ns and supports Fast Page Mode for enhanced data throughput. It includes advanced refresh capabilities such as RAS Only, CAS Before RAS, and Hidden Refresh, along with a 512 x 4 SAM port. The TMS44C251 series is designed for high-speed memory applications, commonly found in display controllers, graphics accelerators, and video processing systems. This device utilizes a 28-lead SOJ package with J-bend terminals, suitable for surface-mount assembly. Its operating voltage range is 4.5V to 5.5V, with a nominal supply of 5V.
Additional Information
Series: TMS44C251RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Width | 7.6200 |
| Technology | CMOS |
| Length | 18.4150 |
| Access_Mode | FAST PAGE |
| Access_Time_Max | 120.0000000000000000 |
| 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_Equivalence_Code | SOJ28,.44 |
| Package_Shape | Rectangular |
| Package_Style | SMALL OUTLINE |
| Refresh_Cycles | 512 |
| Seated_Height_Max | 3.7600 |
| Standby_Current_Max | 0.005000000000000 |
| 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 | Dual |
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