| PartNumber | IS61C5128AS-25QLI | IS61C5128AS-25HLI | IS61C5128AS-25HLI-TR |
| Description | SRAM 4M (512Kx8) 25ns Async SRAM | SRAM 4M (512Kx8) 25ns Async SRAM | SRAM 4M (512Kx8) 25ns Async SRAM |
| Manufacturer | ISSI | ISSI | ISSI |
| Product Category | SRAM | SRAM | SRAM |
| RoHS | Y | Y | Y |
| Memory Size | 4 Mbit | 4 Mbit | 4 Mbit |
| Organization | 512 k x 8 | 512 k x 8 | 512 k x 8 |
| Access Time | 25 ns | 25 ns | 25 ns |
| Interface Type | Parallel | Parallel | Parallel |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 4.5 V | 4.5 V | 4.5 V |
| Supply Current Max | 15 mA | 15 mA | 15 mA |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOP-32 | sTSOP-32 | sTSOP-32 |
| Packaging | Tray | Tray | Reel |
| Data Rate | SDR | - | - |
| Memory Type | SDR | SDR | SDR |
| Series | IS61C5128AS | IS61C5128AS | IS61C5128AS |
| Type | Asynchronous | Asynchronous | Asynchronous |
| Brand | ISSI | ISSI | ISSI |
| Number of Ports | 1 | - | - |
| Moisture Sensitive | Yes | Yes | Yes |
| Product Type | SRAM | SRAM | SRAM |
| Factory Pack Quantity | 84 | 234 | 2000 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Unit Weight | 0.048678 oz | 0.009171 oz | - |