| Part Numbers | Manufacturer Name | Datasheet | Core Processor | Core Size | Speed | Connectivity | RAM Size | Number of I/O | Program Memory Size | Program Memory Type | EEPROM Size | Voltage - Supply (Vcc/Vdd) | Data Converters | Oscillator Type | Operating Temperature | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P80C554SFBD,157 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 16MHz | EBI/EMI, I²C, UART/USART | 40 | - | ROMless | - | 512 x 8 | 2.7 V ~ 5.5 V | A/D 7x10b | Internal | -40°C ~ 85°C | 64-LQFP | |
| P80C554SBBD,157 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 16MHz | EBI/EMI, I²C, UART/USART | 40 | - | ROMless | - | 512 x 8 | 2.7 V ~ 5.5 V | A/D 7x10b | Internal | 0°C ~ 70°C | 64-LQFP |
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