TM4256HE4-15L
DRAM Module, 512KX4, 150ns, NMOSManufacturer: Texas Instruments
Categories: DRAMs
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The Texas Instruments TM4256HE4-15L is a 2,097,152-bit NMOS DRAM module organized as 512K words by 4 bits. This module features a maximum access time of 150ns and operates asynchronously with a page access mode. Key functionalities include RAS ONLY, CAS BEFORE RAS, and HIDDEN REFRESH cycles, supporting 256 refresh cycles. The module utilizes separate I/O and offers 3-state output characteristics. It operates within a supply voltage range of 4.5V to 5.5V, with a nominal voltage of 5V, and has a maximum supply current of 68mA. The TM4256HE4-15L is housed in a 22-terminal SIMM package with through-hole termination and a terminal pitch of 2.54mm. This component is suitable for applications in industrial and consumer electronics requiring high-density memory.
Additional Information
Series: TM4256HE4RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Technology | NMOS |
| Access_Mode | PAGE |
| Access_Time_Max | 150.0000000000000000 |
| Additional_Feature | RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH |
| I_O_Type | SEPARATE |
| JESD_30_Code | R-XSMA-T22 |
| Memory_Density | 2097152.0000000000000000 |
| Memory_IC_Type | DRAM MODULE |
| Memory_Organization | 512KX4 |
| Memory_Width | 4 |
| Number_of_Functions | 1 |
| Number_of_Ports | 1 |
| Number_of_Terminals | 22 |
| Number_of_Words | 524288.0000000000000000 |
| Number_of_Words_Code | 512k |
| 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 | SIP24,.2 |
| Package_Shape | Rectangular |
| Package_Style | MICROELECTRONIC ASSEMBLY |
| Refresh_Cycles | 256 |
| Supply_Current_Max | 68.000000000000000 |
| 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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