| Part Number | PCF8570T/F5,518 | PCF8570T/F5,512 | 
|---|---|---|
| Manufacturer | NXP USA Inc. | NXP USA Inc. | 
| Category | Memory | Memory | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Memory Type | Volatile | Volatile | 
| Memory Format | SRAM | SRAM | 
| Technology | SRAM | SRAM | 
| Memory Size | 2Kb (256 x 8) | 2Kb (256 x 8) | 
| Memory Interface | I²C | I²C | 
| Clock Frequency | 100 kHz | 100 kHz | 
| Write Cycle Time - Word, Page | - | - | 
| Access Time | - | - | 
| Voltage - Supply | 2.5V ~ 6V | 2.5V ~ 6V | 
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 8-SOIC (0.295", 7.50mm Width) | 8-SOIC (0.295", 7.50mm Width) | 
| Supplier Device Package | 8-SO | 8-SO |