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| PartNumber | 70V639S12PRF | 70V639S12PRFI | 70V639S12PRF8 |
| Description | SRAM 128Kx18 STD-PWR 3.3V DUAL-PORT RAM | SRAM 128Kx18 STD-PWR 3.3V DUAL-PORT RAM | SRAM 128Kx18 STD-PWR 3.3V DUAL-PORT RAM |
| Manufacturer | IDT (Integrated Device Technology) | IDT (Integrated Device Technology) | IDT, Integrated Device Technology Inc |
| Product Category | SRAM | SRAM | Memory |
| RoHS | N | N | - |
| Memory Size | 2 Mbit | 2 Mbit | 2.25M (128K x 18) |
| Organization | 128 k x 18 | 128 k x 18 | - |
| Access Time | 12 ns | 12 ns | - |
| Interface Type | Parallel | Parallel | - |
| Supply Voltage Max | 3.45 V | 3.45 V | - |
| Supply Voltage Min | 3.15 V | 3.15 V | - |
| Supply Current Max | 465 mA | 515 mA | - |
| Minimum Operating Temperature | 0 C | - 40 C | - |
| Maximum Operating Temperature | + 70 C | + 85 C | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | TQFP-128 | TQFP-128 | - |
| Packaging | Tray | Tray | Tape & Reel (TR) Alternate Packaging |
| Height | 1.4 mm | 1.4 mm | - |
| Length | 20 mm | 20 mm | - |
| Memory Type | SDR | SDR | SRAM - Dual Port, Asynchronous |
| Series | 70V639 | 70V639 | 70V639 |
| Type | Asynchronous | Asynchronous | - |
| Width | 14 mm | 14 mm | - |
| Brand | IDT | IDT | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | SRAM | SRAM | - |
| Factory Pack Quantity | 6 | 6 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Part # Aliases | 70V639 IDT70V639S12PRF | 70V639 IDT70V639S12PRFI | 70V639 IDT70V639S12PRF8 |
| Unit Weight | 0.017760 oz | 0.017760 oz | - |
| Package Case | - | - | 128-LQFP |
| Operating Temperature | - | - | 0°C ~ 70°C (TA) |
| Interface | - | - | Parallel |
| Voltage Supply | - | - | 3.15 V ~ 3.45 V |
| Supplier Device Package | - | - | 128-TQFP (14x20) |
| Speed | - | - | 12ns |
| Format Memory | - | - | RAM |