TMS44C256-80DJ
Fast Page DRAM, 256KX4, 80ns, CMOS, PDSO20Manufacturer: Texas Instruments
Categories: DRAMs
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Texas Instruments TMS44C256 series Fast Page DRAM, part number TMS44C256-80DJ. This CMOS memory component offers a 256K x 4 organization, yielding a total memory density of 1Mb. It features an 80ns maximum access time and operates in asynchronous mode with a nominal supply voltage of 5V. The device supports Fast Page mode access, along with RAS Only/CAS Before RAS and Hidden Refresh modes for efficient operation. It is housed in a 20-lead SOJ (Small Outline J-Lead) plastic package with a 1.27mm terminal pitch, suitable for surface mounting. This component finds application in systems requiring high-speed data buffering and memory expansion, including computing and industrial control. Typical standby current is 2mA, with a maximum supply current of 75mA. Operating temperature range is 0°C to 70°C.
Additional Information
Series: TMS44C256RoHS Status: Manufacturer Lead Time: 0Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Length | 17.1450 |
| Width | 7.5700 |
| Technology | CMOS |
| Access_Mode | FAST PAGE |
| Access_Time_Max | 80.0000000000000000 |
| Additional_Feature | RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH |
| I_O_Type | COMMON |
| JESD_30_Code | R-PDSO-J20 |
| Memory_Density | 1048576.0000000000000000 |
| Memory_IC_Type | FAST PAGE DRAM |
| Memory_Organization | 256KX4 |
| Memory_Width | 4 |
| Number_of_Functions | 1 |
| Number_of_Ports | 1 |
| Number_of_Terminals | 20 |
| 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 | SOJ20/26,.34 |
| Package_Shape | Rectangular |
| Package_Style | SMALL OUTLINE |
| Refresh_Cycles | 512 |
| Seated_Height_Max | 3.7600 |
| Standby_Current_Max | 0.002000000000000 |
| Supply_Current_Max | 75.000000000000000 |
| 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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