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| Part Number | 7140LA55P | 7140LA55PF | 7140SA55P | 7142LA55P | 7140LA35P | 7140LA55J |
|---|---|---|---|---|---|---|
| Manufacturer | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Memory Type | Volatile | Volatile | Volatile | Volatile | Volatile | Volatile |
| Memory Format | SRAM | SRAM | SRAM | SRAM | SRAM | SRAM |
| Technology | SRAM - Dual Port, Asynchronous | SRAM - Dual Port, Asynchronous | SRAM - Dual Port, Asynchronous | SRAM - Dual Port, Asynchronous | SRAM - Dual Port, Asynchronous | SRAM - Dual Port, Asynchronous |
| Memory Size | 8Kb (1K x 8) | 8Kb (1K x 8) | 8Kb (1K x 8) | 16Kb (2K x 8) | 8Kb (1K x 8) | 8Kb (1K x 8) |
| Memory Interface | Parallel | Parallel | Parallel | Parallel | Parallel | Parallel |
| Clock Frequency | - | - | - | - | - | - |
| Write Cycle Time - Word, Page | 55ns | 55ns | 55ns | 55ns | 35ns | 55ns |
| Access Time | 55 ns | 55 ns | 55 ns | 55 ns | 35 ns | 55 ns |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 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) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Mounting Type | Through Hole | Surface Mount | Through Hole | Through Hole | Through Hole | Surface Mount |
| Package / Case | 48-DIP (0.600", 15.24mm) | 64-LQFP | 48-DIP (0.600", 15.24mm) | 48-DIP (0.600", 15.24mm) | 48-DIP (0.600", 15.24mm) | 52-LCC (J-Lead) |
| Supplier Device Package | 48-PDIP | 64-TQFP (14x14) | 48-PDIP | 48-PDIP | 48-PDIP | 52-PLCC (19.13x19.13) |
