| PartNumber | IS61DDB41M36-250M3 | IS61DDB41M18A-250M3L | IS61DDB41M36A-300M3LI |
| Description | SRAM 36Mb 1Mbx36 DDR II Sync SRAM | SRAM 18Mb 250Mhz 1Mx18 DDR-II Sync SRAM | SRAM 36Mb 300Mhz 1Mx36 DDR II Sync SRAM |
| Manufacturer | ISSI | ISSI | ISSI |
| Product Category | SRAM | SRAM | SRAM |
| RoHS | N | Y | Y |
| Memory Size | 36 Mbit | 18 Mbit | 36 Mbit |
| Organization | 1 M x 36 | 1 M x 18 | 1 M x 36 |
| Access Time | 4 ns | - | - |
| Maximum Clock Frequency | 250 MHz | 250 MHz | 300 MHz |
| Interface Type | Parallel | Parallel | Parallel |
| Supply Voltage Max | 1.9 V | 1.9 V | 1.9 V |
| Supply Voltage Min | 1.7 V | 1.7 V | 1.7 V |
| Supply Current Max | 550 mA | 600 mA | 650 mA |
| Minimum Operating Temperature | 0 C | 0 C | - 40 C |
| Maximum Operating Temperature | + 70 C | + 70 C | + 85 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | BGA-165 | FBGA-165 | FBGA-165 |
| Packaging | Tray | Tray | Tray |
| Data Rate | DDR | - | - |
| Series | IS61DDB41M36 | IS61DDB41M18A | IS61DDB41M36A |
| Type | Synchronous | - | - |
| Brand | ISSI | ISSI | ISSI |
| Number of Ports | 1 | - | - |
| Moisture Sensitive | Yes | Yes | Yes |
| Product Type | SRAM | SRAM | SRAM |
| Factory Pack Quantity | 105 | 105 | 105 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Memory Type | - | DDR-II | DDR-II |