| PartNumber | P89CV51RD2FA/512 | P89CV51RD2FA,512 | P89CV51RD2FBC,557 |
| Description | 8-bit Microcontrollers - MCU | IC MCU 8BIT 64KB FLASH 44PLCC | IC MCU 8BIT 64KB FLASH 44TQFP |
| Manufacturer | NXP | - | NXP Semiconductors |
| Product Category | 8-bit Microcontrollers - MCU | - | Embedded - Microcontrollers |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | PLCC-44 | - | - |
| Core | 80C51 | - | - |
| Data Bus Width | 8 bit | - | - |
| Height | 3.68 mm (Min) | - | - |
| Length | 16.66 mm (Max) | - | - |
| Width | 16.66 mm (Max) | - | - |
| Brand | NXP Semiconductors | - | - |
| Product Type | 8-bit Microcontrollers - MCU | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Unit Weight | 0.084185 oz | - | - |
| Series | - | - | 89C |
| Packaging | - | - | Tray |
| Package Case | - | - | 44-TQFP |
| Operating Temperature | - | - | -40°C ~ 85°C (TA) |
| Supplier Device Package | - | - | 44-TQFP (10x10) |
| Number of I O | - | - | 32 |
| Speed | - | - | 40MHz |
| EEPROM Size | - | - | - |
| Core Processor | - | - | 8051 |
| RAM Size | - | - | 1K x 8 |
| Program Memory Type | - | - | FLASH |
| Peripherals | - | - | POR, PWM, WDT |
| Connectivity | - | - | EBI/EMI, SPI, UART/USART |
| Voltage Supply Vcc Vdd | - | - | 4.5 V ~ 5.5 V |
| Core Size | - | - | 8-Bit |
| Program Memory Size | - | - | 64KB (64K x 8) |
| Data Converters | - | - | - |
| Oscillator Type | - | - | Internal |