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| Part Number | P80C31SBBB,557 |
| Datasheet | P80C31SBBB,557 datasheet |
| Description | IC MCU 8BIT ROMLESS 44PQFP |
| Manufacturer | NXP USA Inc. |
| Series | 80C |
| Part Status | Obsolete |
| Core Processor | 8051 |
| Core Size | 8-Bit |
| Speed | 16MHz |
| Connectivity | UART/USART |
| Peripherals | POR |
| Number of I/O | 32 |
| Program Memory Size | - |
| Program Memory Type | ROMless |
| EEPROM Size | - |
| RAM Size | 128 x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
| Data Converters | - |
| Oscillator Type | Internal |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Package / Case | Surface Mount |
| Supplier Device Package | 44-QFP |
| Base Part Number | 44-PQFP (10x10) |