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| PartNumber | 23K640-E/SN | 23K640-E/ST | 23K640-E/SNVAO |
| Description | SRAM 64K 8K X 8 2.7V SERIAL SRAM EXT | SRAM 64K 8K X 8 2.7V SERIAL SRAM EXT | |
| Manufacturer | Microchip | Microchip | - |
| Product Category | SRAM | SRAM | - |
| RoHS | Y | Y | - |
| Memory Size | 64 kbit | 64 kbit | - |
| Organization | 8 k x 8 | 8 k x 8 | - |
| Access Time | - | - | - |
| Maximum Clock Frequency | 20 MHz | 20 MHz | - |
| Interface Type | Serial, 4-Wire, SDI, SPI | Serial, 4-Wire, SDI, SPI | - |
| Supply Voltage Max | 3.6 V | 3.6 V | - |
| Supply Voltage Min | 2.7 V | 2.7 V | - |
| Supply Current Max | 10 mA | 10 mA | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 125 C | + 125 C | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SOIC-8 | TSSOP-8 | - |
| Packaging | Tube | Tube | - |
| Data Rate | SDR | SDR | - |
| Memory Type | SDR | SDR | - |
| Series | 23K640 | 23K640 | - |
| Type | Synchronous | Synchronous | - |
| Brand | Microchip Technology | Microchip Technology | - |
| Number of Ports | 1 | 1 | - |
| Moisture Sensitive | Yes | - | - |
| Product Type | SRAM | SRAM | - |
| Factory Pack Quantity | 100 | 100 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Unit Weight | 0.019048 oz | 0.005573 oz | - |