| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P87C51RD2BA,512 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 33MHz | EBI/EMI, UART/USART | 32 | 64KB (64K x 8) | OTP | - | 1K x 8 | 2.7 V ~ 5.5 V | - | Internal | 0°C ~ 70°C | 44-LCC (J-Lead) | |
| P87C51RD2FBD/01,15 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 33MHz | EBI/EMI, UART/USART | 32 | 64KB (64K x 8) | OTP | - | 1K x 8 | 2.7 V ~ 5.5 V | - | Internal | -40°C ~ 85°C | 44-LQFP | |
| P87C51RD2BBD,157 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 33MHz | EBI/EMI, UART/USART | 32 | 64KB (64K x 8) | OTP | - | 1K x 8 | 2.7 V ~ 5.5 V | - | Internal | 0°C ~ 70°C | 44-LQFP | |
| P89C668HBA/00,512 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 33MHz | I²C, UART/USART | 32 | 64KB (64K x 8) | FLASH | - | 8K x 8 | 4.5 V ~ 5.5 V | - | Internal | 0°C ~ 70°C | 44-LCC (J-Lead) | |
| P89C51RD2BA/01,512 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 33MHz | UART/USART | 32 | 64KB (64K x 8) | FLASH | - | 1K x 8 | 4.5 V ~ 5.5 V | - | Internal | 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 | |
| P89C664HFA/00,512 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 33MHz | I²C, UART/USART | 32 | 64KB (64K x 8) | FLASH | - | 2K x 8 | 4.75 V ~ 5.25 V | - | Internal | -40°C ~ 85°C | 44-LCC (J-Lead) | |
| P89C664HFBD/00,557 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 33MHz | I²C, UART/USART | 32 | 64KB (64K x 8) | FLASH | - | 2K x 8 | 4.75 V ~ 5.25 V | - | Internal | -40°C ~ 85°C | 44-LQFP | |
| P89C668HBBD/00,557 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 33MHz | I²C, UART/USART | 32 | 64KB (64K x 8) | FLASH | - | 8K x 8 | 4.5 V ~ 5.5 V | - | Internal | 0°C ~ 70°C | 44-LQFP |
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