8-bit CISC microcontroller featuring a 50 MHz clock rate and 8051 core architecture. Offers 128KB Flash program memory and 8.25KB RAM. Includes 40 programmable I/Os, 6 timers, and multiple communication interfaces: I2C, SPI, and 2 UARTs. Housed in a 48-pin QFP (Quad Flat Package) with gull-wing leads for surface mounting, measuring 7x7x1mm with a 0.5mm pin pitch. Operates across a wide temperature range of -40°C to 125°C with supply voltages from 2.5V to 5V. Features 32 ADC channels from a single ADC.
PackageQFP
MountingSurface Mount
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Technical Specifications
Silicon Labs C8051F581-IQR technical specifications.
General
| Basic Package Type | Lead-Frame SMT |
| Package Family Name | QFP |
| Package/Case | QFP |
| Package Description | Quad Flat Package |
| Lead Shape | Gull-wing |
| Pin Count | 48 |
| PCB | 48 |
| Package Length (mm) | 7 |
| Package Width (mm) | 7 |
| Package Height (mm) | 1 |
| Seated Plane Height (mm) | 1.2(Max) |
| Pin Pitch (mm) | 0.5 |
| Package Material | Plastic |
| Mounting | Surface Mount |
| Family Name | C8051F58x |
| Data Bus Width | 8bit |
| Instruction Set Architecture | CISC |
| Maximum Clock Rate | 50MHz |
| Maximum CPU Frequency | 50MHz |
| Device Core | 8051 |
| Program Memory Type | Flash |
| Program Memory Size | 128KB |
| RAM Size | 8.25KB |
| Number of Programmable I/Os | 40 |
| Core Architecture | 8051 |
| Programmability | Yes |
| Number of Timers | 6 |
| Interface Type | I2C/SMBus/SPI/UART |
| CAN | 0 |
| I2C | 1 |
| SPI | 1 |
| Ethernet | 0 |
| UART | 2 |
| USART | 0 |
| USB | 0 |
| I2S | 0 |
| Max Operating Supply Voltage | 5.25V |
| Min Operating Temperature | -40°C |
| Max Operating Temperature | 125°C |
| ADC Channels | 32 |
| Number of ADCs | Single |
Compliance
| Cage Code | 6SQ24 |
| EU RoHS | Yes |
| HTS Code | 8542390001 |
| Schedule B | 8542390000 |
| ECCN | 3A991.a.2 |
| Automotive | Yes |
| AEC Qualified | Yes |
| PPAP | No |
| RoHS Versions | 2011/65/EU, 2015/863 |
Datasheet
Silicon Labs C8051F581-IQR Datasheet
Download the complete datasheet for Silicon Labs C8051F581-IQR to view detailed technical specifications.
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