8-Bit Microcontroller (MCU) featuring an 8051 core architecture and 32KB FLASH memory, operating at up to 50MHz. This CMOS device offers 18 programmable I/O pins, 18 ADC channels, and 6 PWM channels. Integrated peripherals include POR, WDT, and a temperature sensor, with support for I2C, SPI, UART, USART, and SMBus interfaces. Designed for surface mounting in a 4mm x 4mm x 0.75mm QFN package with tin contact plating, it operates from 1.8V to 5.25V and across a temperature range of -40°C to 125°C.
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Silicon Labs C8051F553-IM technical specifications.
| Package/Case | QFN |
| Contact Plating | Tin |
| Core Architecture | 8051 |
| Data Bus Width | 8b |
| Frequency | 50MHz |
| Height | 0.75mm |
| Interface | I2C, SPI, UART, USART, SMBus, 2-Wire |
| Length | 4mm |
| Max Frequency | 50MHz |
| Max Operating Temperature | 125°C |
| Max Supply Voltage | 5.25V |
| Memory Size | 32KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Min Supply Voltage | 1.8V |
| Mount | Surface Mount |
| Number of ADC Channels | 18 |
| Number of Channels | 6 |
| Number of I/Os | 18 |
| Number of I2C Channels | 1 |
| Number of Programmable I/O | 18 |
| Number of PWM Channels | 6 |
| Number of SPI Channels | 1 |
| Number of Timers/Counters | 4 |
| Number of UART Channels | 1 |
| Oscillator Type | Internal |
| Package Quantity | 91 |
| Packaging | Rail/Tube |
| Peripherals | POR, PWM, WDT, Temp Sensor |
| RAM Size | 2.25KB |
| RoHS Compliant | Yes |
| Series | C8051F55x |
| Watchdog Timer | Yes |
| Width | 4mm |
| RoHS | Compliant |
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