| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P87C52X2BBD,157 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 33MHz | EBI/EMI, UART/USART | 32 | 8KB (8K x 8) | OTP | - | 256 x 8 | 2.7 V ~ 5.5 V | - | Internal | 0°C ~ 70°C | 44-LQFP | |
| P87C52X2FBD,157 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 33MHz | EBI/EMI, UART/USART | 32 | 8KB (8K x 8) | OTP | - | 256 x 8 | 2.7 V ~ 5.5 V | - | Internal | -40°C ~ 85°C | 44-LQFP | |
| P89C52X2BBD/00,557 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 33MHz | UART/USART | 32 | 8KB (8K x 8) | FLASH | - | 256 x 8 | 4.5 V ~ 5.5 V | - | Internal | 0°C ~ 70°C | 44-LQFP | |
| P89V52X2FBD,157 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 40MHz | UART/USART | 32 | 8KB (8K x 8) | FLASH | 192 x 8 | 256 x 8 | 2.7 V ~ 5.5 V | - | External | -40°C ~ 85°C | 44-LQFP | |
| P89LPC952FBD,157 | NXP SEMICONDUCTORS | 8051 | 8-Bit | 18MHz | I²C, SPI, UART/USART | 40 | 8KB (8K x 8) | FLASH | - | 512 x 8 | 2.4 V ~ 3.6 V | A/D 8x10b | Internal | -40°C ~ 85°C | 44-LQFP |
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