| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P87C51RB+4A,512 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 16MHz | EBI/EMI, UART/USART | 32 | 16KB (16K x 8) | OTP | - | 512 x 8 | 2.7 V ~ 5.5 V | - | Internal | 0°C ~ 70°C | 44-LCC (J-Lead) | |
| P87C554SBAA,512 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 16MHz | EBI/EMI, I²C, UART/USART | 40 | 16KB (16K x 8) | OTP | - | 512 x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | 0°C ~ 70°C | 68-LCC (J-Lead) | |
| 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 | |
| P87C51RA+4A,512 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 16MHz | EBI/EMI, UART/USART | 32 | 8KB (8K x 8) | OTP | - | 512 x 8 | 2.7 V ~ 5.5 V | - | Internal | 0°C ~ 70°C | 44-LCC (J-Lead) | |
| P87C51RC+4A,512 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 16MHz | EBI/EMI, UART/USART | 32 | 32KB (32K x 8) | OTP | - | 512 x 8 | 2.7 V ~ 5.5 V | - | Internal | 0°C ~ 70°C | 44-LCC (J-Lead) | |
| P87C51RC+4B,557 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 16MHz | EBI/EMI, UART/USART | 32 | 32KB (32K x 8) | OTP | - | 512 x 8 | 2.7 V ~ 5.5 V | - | Internal | 0°C ~ 70°C | 44-QFP | |
| P87C51RC+4N,112 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 16MHz | EBI/EMI, UART/USART | 32 | 32KB (32K x 8) | OTP | - | 512 x 8 | 2.7 V ~ 5.5 V | - | Internal | 0°C ~ 70°C | 40-DIP (0.600, 15.24mm) |
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