SMJ4256-20FVS
Page Mode DRAM, 256KX1, 200ns, NMOS, CQCC18Manufacturer: Texas Instruments
Categories: DRAMs
Quality Control: Learn More
The Texas Instruments SMJ4256-20FVS is a 256K x 1 bit page mode DRAM with a maximum access time of 200ns. This NMOS device utilizes separate input/output and supports RAS only, CAS before RAS, and hidden refresh modes. It operates asynchronously with a supply voltage range of 4.75V to 5.25V and features 3-state output characteristics. The component is housed in an 18-terminal ceramic cofired chip carrier package (CQCC18) suitable for surface mounting, with a JEDEC code of R-CQCC-N18. Designed for demanding applications, it operates across an extended temperature range from -55°C to +110°C. This part is often utilized in military, aerospace, and industrial systems requiring high reliability and robust performance.
Additional Information
Series: SMJ4256RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Length | 12.3200 |
| Width | 7.2400 |
| Technology | NMOS |
| Access_Mode | PAGE |
| Access_Time_Max | 200.0000000000000000 |
| Additional_Feature | RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH |
| I_O_Type | SEPARATE |
| JESD_30_Code | R-CQCC-N18 |
| Memory_Density | 262144.0000000000000000 |
| Memory_IC_Type | PAGE MODE DRAM |
| Memory_Organization | 256KX1 |
| Memory_Width | 1 |
| Number_of_Functions | 1 |
| Number_of_Ports | 1 |
| Number_of_Terminals | 18 |
| Number_of_Words | 262144.0000000000000000 |
| Number_of_Words_Code | 256k |
| Operating_Mode | Asynchronous |
| Operating_Temperature_Max | 110.0 |
| Operating_Temperature_Min | -55.0 |
| Output_Characteristics | 3-State |
| Package_Body_Material | CERAMIC, METAL-SEALED COFIRED |
| Package_Code | QCCN |
| Package_Equivalence_Code | LCC18,.3X.5 |
| Package_Shape | Rectangular |
| Package_Style | CHIP CARRIER |
| Refresh_Cycles | 256 |
| Screening_Level_Reference_Standard | 38535Q/M;38534H;883B |
| Seated_Height_Max | 2.1800 |
| Supply_Voltage_Max | 5.25000 |
| Supply_Voltage_Min | 4.75000 |
| Supply_Voltage_Nom | 5 |
| Surface_Mount | Yes |
| Terminal_Form | NO LEAD |
| Terminal_Pitch | 1.270 |
| Terminal_Position | QUAD |
Request a Quote
Clients Also Buy
SMJ4256-15FVS
Page Mode DRAM, 256KX1, 150ns, NMOS, CQCC18
SMJ4256-12FVS
Page Mode DRAM, 256KX1, 120ns, NMOS, CQCC18
SMJ4256-12JDS
Page Mode DRAM, 256KX1, 120ns, NMOS, CDIP16