TMS44C251-15SDL
Video DRAM, 256KX4, 150ns, CMOS, PZIP28Manufacturer: Texas Instruments
Categories: DRAMs
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Texas Instruments TMS44C251-15SDL is a 1048576-bit Video DRAM with a memory organization of 256K x 4. This CMOS device features a maximum access time of 150ns and operates with a 5V supply. The TMS44C251 series supports various refresh modes, including RAS ONLY, CAS BEFORE RAS, and HIDDEN REFRESH, alongside a 512 x 4 SAM port. It utilizes a PZIP28 package with through-hole mounting and a terminal pitch of 2.54mm. This component is commonly found in graphics controllers and display systems for applications requiring high-speed video memory.
Additional Information
Series: TMS44C251RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Length | 36.0700 |
| Width | 2.8000 |
| Technology | CMOS |
| 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-PZIP-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 | PLASTIC/EPOXY |
| Package_Code | ZIP |
| Package_Equivalence_Code | ZIP28,.1 |
| Package_Shape | Rectangular |
| Package_Style | IN-LINE |
| Refresh_Cycles | 512 |
| Seated_Height_Max | 10.1600 |
| Standby_Current_Max | 0.005000000000000 |
| 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 | ZIG-ZAG |
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