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| PartNumber | C8051F543-IM | C8051F543-IMR | C8051F543-AM |
| Description | 8-bit Microcontrollers - MCU MCU 8051 50MHz 16kB 5V | 8-bit Microcontrollers - MCU 50 MIPS, 16 kB, 1 kB, SPI, UART, I2C, QFN24 | MCU 8-bit C8051F54x 8051 CISC 16KB Flash 2.5V/3.3V/5V Automotive 24-Pin QFN EP |
| Manufacturer | Silicon Laboratories | Silicon Laboratories | - |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | QFN-24 | - | - |
| Series | C8051F543 | C8051F543 | - |
| Core | 8051 | 8051 | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Maximum Clock Frequency | 50 MHz | - | - |
| Program Memory Size | 16 kB | - | - |
| Data RAM Size | 256 B | - | - |
| Number of I/Os | 18 I/O | - | - |
| Operating Supply Voltage | 1.8 V to 5.25 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 125 C | - | - |
| Qualification | AEC-Q100 | - | - |
| Packaging | Tube | Reel | - |
| Program Memory Type | Flash | - | - |
| Brand | Silicon Labs | Silicon Labs | - |
| Processor Series | C8051 | C8051 | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 91 | 1500 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Unit Weight | 0.001368 oz | - | - |
| Moisture Sensitive | - | Yes | - |