| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P87C557E8EFB/01,55 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 16MHz | EBI/EMI, I²C, UART/USART | 40 | 64KB (64K x 8) | OTP | - | 2K x 8 | 4.5 V ~ 5.5 V | A/D 8x10b | External | -40°C ~ 85°C | 80-BQFP | |
| PXAG49KBA/00,512 | NXP SEMICONDUCTORS | XA | 16-Bit | 30MHz | UART/USART | 32 | 64KB (64K x 8) | FLASH | - | 2K x 8 | 4.5 V ~ 5.5 V | - | External | 0°C ~ 70°C | 44-LCC (J-Lead) | |
| P89C664HBA/00,512 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 33MHz | I²C, UART/USART | 32 | 64KB (64K x 8) | FLASH | - | 2K x 8 | 4.5 V ~ 5.5 V | - | Internal | 0°C ~ 70°C | 44-LCC (J-Lead) | |
| P89C664HBBD/00,557 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 33MHz | I²C, UART/USART | 32 | 64KB (64K x 8) | FLASH | - | 2K x 8 | 4.5 V ~ 5.5 V | - | Internal | 0°C ~ 70°C | 44-LQFP | |
| P89C669FA-S | NXP SEMICONDUCTORS | 8051 | 8-Bit | 24MHz | I²C, UART/USART | 32 | 96KB (96K x 8) | FLASH | - | 2K x 8 | 4.5 V ~ 5.5 V | - | Internal | -40°C ~ 85°C | 44-LCC (J-Lead) | |
| PXAG49KBBD/00,557 | NXP SEMICONDUCTORS | XA | 16-Bit | 30MHz | UART/USART | 32 | 64KB (64K x 8) | FLASH | - | 2K x 8 | 4.5 V ~ 5.5 V | - | External | 0°C ~ 70°C | 44-LQFP | |
| P89V664FA,512 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 40MHz | I²C, SPI, UART/USART | 36 | 64KB (64K x 8) | FLASH | - | 2K x 8 | 4.5 V ~ 5.5 V | - | Internal | -40°C ~ 85°C | 44-LCC (J-Lead) | |
| P89V664FBC,557 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 40MHz | I²C, SPI, UART/USART | 36 | 64KB (64K x 8) | FLASH | - | 2K x 8 | 4.5 V ~ 5.5 V | - | Internal | -40°C ~ 85°C | 44-TQFP |
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