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| PartNumber | P89C668HBBD/ 00/557 | P89C668HBBD/00,557 | P89C668HBBD |
| Description | 8-bit Microcontrollers - MCU | IC MCU 8BIT 64KB FLASH 44LQFP | 8-bit Microcontrollers - MCU 80C51 64K FL / 8K RM |
| Manufacturer | NXP | - | PHILIPS |
| Product Category | 8-bit Microcontrollers - MCU | - | Embedded - Microcontrollers |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | LQFP-44 | - | - |
| Core | 80C51 | - | - |
| Data Bus Width | 8 bit | - | - |
| ADC Resolution | No ADC | - | - |
| Operating Supply Voltage | 5 V | - | - |
| Height | 1.4 mm | - | - |
| Length | 10 mm | - | - |
| Width | 10 mm | - | - |
| Brand | NXP Semiconductors | - | - |
| Product Type | 8-bit Microcontrollers - MCU | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Unit Weight | 0.012561 oz | - | - |