TM4257FL8-20L
DRAM Module, 256KX8, 200ns, NMOSManufacturer: Texas Instruments
Categories: DRAMs
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Texas Instruments TM4257FL8-20L is a 256K x 8 NMOS DRAM module from the TM4257FL8 series. This asynchronous memory component features an access time of 200ns and supports RAS ONLY, CAS BEFORE RAS, and HIDDEN REFRESH modes. It operates with a common I/O and provides 3-state outputs. The module utilizes through-hole mounting and is designed for a supply voltage range of 4.5V to 5.5V, with a nominal voltage of 5V. Operating temperatures are specified from 0°C to 70°C. This component is suitable for applications in industrial control and legacy computing systems requiring reliable memory solutions.
Additional Information
Series: TM4257FL8RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Technology | NMOS |
| Access_Mode | NIBBLE |
| Access_Time_Max | 200.0000000000000000 |
| Additional_Feature | RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH |
| I_O_Type | COMMON |
| JESD_30_Code | R-XSMA-T30 |
| Memory_Density | 2097152.0000000000000000 |
| Memory_IC_Type | DRAM MODULE |
| Memory_Organization | 256KX8 |
| Memory_Width | 8 |
| Number_of_Functions | 1 |
| Number_of_Ports | 1 |
| Number_of_Terminals | 30 |
| 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 | UNSPECIFIED |
| Package_Code | SIMM |
| Package_Equivalence_Code | SIP30,.2 |
| Package_Shape | Rectangular |
| Package_Style | MICROELECTRONIC ASSEMBLY |
| Refresh_Cycles | 256 |
| Seated_Height_Max | 16.5100 |
| 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 | Single |
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