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| Part Number | R1RP0408DGE-2LR#B1 | R1RP0408DGE-2PR#B1 | R1RW0408DGE-2LR#B1 | R1RP0408DGE-2LR#B0 | 
|---|---|---|---|---|
| Manufacturer | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc | 
| Product Status | Active | Active | Active | Obsolete | 
| Memory Type | Volatile | Volatile | Volatile | Volatile | 
| Memory Format | SRAM | SRAM | SRAM | SRAM | 
| Technology | SRAM | SRAM | SRAM | SRAM | 
| Memory Size | 4Mb (512K x 8) | 4Mb (512K x 8) | 4Mb (512K x 8) | 4Mb (512K x 8) | 
| Memory Interface | Parallel | Parallel | Parallel | Parallel | 
| Clock Frequency | - | - | - | - | 
| Write Cycle Time - Word, Page | 12ns | 12ns | 12ns | 12ns | 
| Access Time | 12 ns | 12 ns | 12 ns | 12 ns | 
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 3V ~ 3.6V | 4.5V ~ 5.5V | 
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | 
| Package / Case | 36-BSOJ (0.400", 10.16mm Width) | 36-BSOJ (0.400", 10.16mm Width) | 36-BSOJ (0.400", 10.16mm Width) | 36-BSOJ (0.400", 10.16mm Width) | 
| Supplier Device Package | 36-SOJ | 36-SOJ | 36-SOJ | 36-SOJ |