| PartNumber | 23K640T-E/ST | 23K640T-I/SN | 23K640T-E/SN |
| Description | SRAM 64K 8K X 8 2.7V SERIAL SRAM EXT | SRAM 64K 8K X 8 2.7V SERIAL SRAM IND | SRAM 64K 8K X 8 2.7V SERIAL SRAM EXT |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | SRAM | SRAM | SRAM |
| RoHS | Y | Y | Y |
| Memory Size | 64 kbit | 64 kbit | 64 kbit |
| Organization | 8 k x 8 | 8 k x 8 | 8 k x 8 |
| Access Time | - | - | - |
| Maximum Clock Frequency | 20 MHz | 20 MHz | 20 MHz |
| Interface Type | Serial, 4-Wire, SDI, SPI | Serial, 4-Wire, SDI, SPI | Serial, 4-Wire, SDI, SPI |
| Supply Voltage Max | 3.6 V | 3.6 V | 3.6 V |
| Supply Voltage Min | 2.7 V | 2.7 V | 2.7 V |
| Supply Current Max | 10 mA | 10 mA | 10 mA |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 125 C | + 85 C | + 125 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | TSSOP-8 | SOIC-8 | SOIC-8 |
| Packaging | Reel | Reel | Reel |
| Data Rate | SDR | SDR | SDR |
| Memory Type | SDR | SDR | SDR |
| Series | 23K640 | 23K640 | 23K640 |
| Type | Synchronous | Synchronous | Synchronous |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Number of Ports | 1 | 1 | 1 |
| Product Type | SRAM | SRAM | SRAM |
| Factory Pack Quantity | 2500 | 3300 | 3300 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Unit Weight | 0.005573 oz | 0.019048 oz | 0.019048 oz |
| Moisture Sensitive | - | Yes | Yes |