TMS44C251-15DJL
Video DRAM, 256KX4, 150ns, CMOS, PDSO28Manufacturer: Texas Instruments
Categories: DRAMs
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Texas Instruments TMS44C251-15DJL is a 1-Mbit Video DRAM organized as 256K words by 4 bits. This CMOS component operates with a maximum access time of 150ns and a supply voltage range of 4.5V to 5.5V. It supports Fast Page Mode access and offers RAS Only/CAS Before RAS/Hidden Refresh modes, along with a 512 x 4 Sample Port. The device features dual, 3-state outputs and is housed in a 28-terminal SOJ (Small Outline J-lead) package with a 1.27mm terminal pitch. These characteristics make it suitable for applications in graphics controllers, display systems, and other video processing applications where high-speed memory is critical. The TMS44C251 series utilizes CMOS technology for reduced power consumption, with a standby current of 5mA maximum.
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 | 150.0000000000000000 |
| 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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