| Part Number | IS49NLC18320A-25WBL | IS49NLS18320A-25WBL | 
|---|---|---|
| Manufacturer | ISSI, Integrated Silicon Solution Inc | ISSI, Integrated Silicon Solution Inc | 
| Category | Memory | Memory | 
|   |   | |
| Product Status | Active | Active | 
| Memory Type | Volatile | Volatile | 
| Memory Format | DRAM | DRAM | 
| Technology | DRAM | DRAM | 
| Memory Size | 576Mb (32M x 18) | 576Mb (32M x 18) | 
| Memory Interface | Parallel | Parallel | 
| Clock Frequency | 400 MHz | 400 MHz | 
| Write Cycle Time - Word, Page | - | - | 
| Access Time | 20 ns | 20 ns | 
| Voltage - Supply | 1.7V ~ 1.9V | 1.7V ~ 1.9V | 
| Operating Temperature | 0°C ~ 95°C (TC) | 0°C ~ 70°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 144-TFBGA | 144-TFBGA | 
| Supplier Device Package | 144-TWBGA (11x18.5) | 144-TWBGA (11x18.5) |