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| Part Number | IS61DDB42M18-250M3 | IS61DDB42M18-250M3L | IS61DDB42M18C-250M3 | IS61DDB22M18-250M3 |
|---|---|---|---|---|
| Manufacturer | ISSI, Integrated Silicon Solution Inc | ISSI, Integrated Silicon Solution Inc | ISSI, Integrated Silicon Solution Inc | ISSI, Integrated Silicon Solution Inc |
| Product Status | Discontinued at Digi-Key | Discontinued at Digi-Key | Obsolete | Discontinued at Digi-Key |
| Memory Type | Volatile | Volatile | Volatile | Volatile |
| Memory Format | SRAM | SRAM | SRAM | SRAM |
| Technology | SRAM - Synchronous, DDR II | SRAM - Synchronous, DDR II | SRAM - Synchronous, DDR II | SRAM - Synchronous, DDR II |
| Memory Size | 36Mb (2M x 18) | 36Mb (2M x 18) | 36Mb (2M x 18) | 36Mb (2M x 18) |
| Memory Interface | Parallel | Parallel | Parallel | Parallel |
| Clock Frequency | 250 MHz | 250 MHz | 250 MHz | 250 MHz |
| Write Cycle Time - Word, Page | - | - | - | - |
| Access Time | 5.85 ns | 5.85 ns | 8.4 ns | - |
| Voltage - Supply | 1.71V ~ 1.89V | 1.71V ~ 1.89V | 1.71V ~ 1.89V | 1.71V ~ 1.89V |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 165-LBGA | 165-LBGA | 165-LBGA | 165-LBGA |
| Supplier Device Package | 165-LFBGA (15x17) | 165-LFBGA (15x17) | 165-LFBGA (15x17) | 165-LFBGA (13x15) |
