| Part Number | W988D6FBGX6E TR | W988D6FBGX7E TR | 
|---|---|---|
| Manufacturer | Winbond Electronics | Winbond Electronics | 
| Category | Memory | Memory | 
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| Product Status | Last Time Buy | Last Time Buy | 
| Memory Type | Volatile | Volatile | 
| Memory Format | DRAM | DRAM | 
| Technology | SDRAM - Mobile LPSDR | SDRAM - Mobile LPSDR | 
| Memory Size | 256Mb (16M x 16) | 256Mb (16M x 16) | 
| Memory Interface | Parallel | Parallel | 
| Clock Frequency | 166 MHz | 133 MHz | 
| Write Cycle Time - Word, Page | 15ns | 15ns | 
| Access Time | 5.4 ns | 5.4 ns | 
| Voltage - Supply | 1.7V ~ 1.95V | 1.7V ~ 1.95V | 
| Operating Temperature | -25°C ~ 85°C (TC) | -25°C ~ 85°C (TC) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 54-TFBGA | 54-TFBGA | 
| Supplier Device Package | 54-VFBGA (8x9) | 54-VFBGA (8x9) |