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| PartNumber | GS8662D20BD-450M | GS8662D20BD-450 | GS8662D20BD-450I |
| Description | SRAM 1.8 or 1.5V 4M x 18 72M | SRAM 1.8 or 1.5V 4M x 18 72M | SRAM 1.8 or 1.5V 4M x 18 72M |
| Manufacturer | GSI Technology | GSI Technology | GSI Technology |
| Product Category | SRAM | SRAM | SRAM |
| Memory Size | 72 Mbit | 72 Mbit | 72 Mbit |
| Organization | 4 M x 18 | 4 M x 18 | 4 M x 18 |
| Maximum Clock Frequency | 450 MHz | 450 MHz | 450 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 |
| Minimum Operating Temperature | - 55 C | 0 C | - 40 C |
| Maximum Operating Temperature | + 125 C | + 70 C | + 85 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | BGA-165 | BGA-165 | BGA-165 |
| Packaging | Tray | Tray | Tray |
| Memory Type | QDR-II | QDR-II | QDR-II |
| Series | GS8662D20BD | GS8662D20BD | GS8662D20BD |
| Type | SigmaQuad-II+ | SigmaQuad-II+ | SigmaQuad-II+ |
| Brand | GSI Technology | GSI Technology | GSI Technology |
| Moisture Sensitive | Yes | Yes | Yes |
| Product Type | SRAM | SRAM | SRAM |
| Factory Pack Quantity | 15 | 15 | 15 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Tradename | SigmaQuad-II | SigmaQuad-II+ | SigmaQuad-II+ |
| RoHS | - | N | - |
| Supply Current Max | - | 820 mA | 830 mA |