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| PartNumber | CYPT1049DV33-1X18M | CYPT1049DV33-12FZMB | CYPT1542AV18-250GCMB |
| Description | SRAM Async SRAMS | SRAM 4096 Kb, 3.60V, 12ns Async Fast SRAMs | SRAM 72Mb 1.8V 250Mhz 4M x 18 QDR II SRAM |
| Manufacturer | GSI Technology | Cypress Semiconductor | Cypress Semiconductor |
| Product Category | SRAM | SRAM | SRAM |
| RoHS | N | N | N |
| Packaging | Tray | Tray | Tray |
| Series | GS81284Z36B | CY7C1170KV18 | CY7C2268KV18 |
| Brand | GSI Technology | Cypress Semiconductor | Cypress Semiconductor |
| Moisture Sensitive | Yes | Yes | Yes |
| Product Type | SRAM | SRAM | SRAM |
| Factory Pack Quantity | 10 | 136 | 136 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Tradename | NBT SRAM | - | - |
| Memory Size | - | 18 Mbit | 36 Mbit |
| Organization | - | 512 k x 36 | 2 M x 18 |
| Access Time | - | - | - |
| Maximum Clock Frequency | - | 550 MHz | 550 MHz |
| Interface Type | - | Parallel | Parallel |
| Supply Voltage Max | - | 1.9 V | 1.9 V |
| Supply Voltage Min | - | 1.7 V | 1.7 V |
| Supply Current Max | - | 820 mA | 700 mA |
| Minimum Operating Temperature | - | 0 C | 0 C |
| Maximum Operating Temperature | - | + 70 C | + 70 C |
| Mounting Style | - | SMD/SMT | SMD/SMT |
| Package / Case | - | FBGA-165 | FBGA-165 |
| Memory Type | - | Volatile | Volatile |
| Type | - | Synchronous | Synchronous |
