8-bit CMOS microcontroller featuring an 8051 core architecture operating at up to 50MHz. This QFN-20 packaged MCU offers 17 programmable I/O pins, 4KB of FLASH memory, and 1KB of RAM. Integrated peripherals include 3 PWM channels, 3 I2C channels, 1 SPI channel, and 1 UART channel, alongside 6 timers/counters. Operating from 1.8V to 3.6V, it supports I2C, SPI, UART, USART, and SMBus interfaces, with an operating temperature range of -40°C to 105°C.
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| Package/Case | QFN |
| Contact Plating | Tin, Matte |
| Core Architecture | 8051 |
| Data Bus Width | 8b |
| Frequency | 50MHz |
| Height | 0.85mm |
| Interface | I2C, SPI, UART, USART, SMBus, 2-Wire |
| Length | 4mm |
| Max Frequency | 50MHz |
| Max Operating Temperature | 105°C |
| Min Operating Temperature | -40°C |
| Max Supply Voltage | 3.6V |
| Memory Size | 4KB |
| Memory Type | FLASH, |
| Min Supply Voltage | 1.8V |
| Number of I/Os | 17 |
| Number of I2C Channels | 3 |
| Number of Programmable I/O | 17 |
| Number of PWM Channels | 3 |
| Number of SPI Channels | 1 |
| Number of Timers/Counters | 6 |
| Number of UART Channels | 1 |
| Oscillator Type | Internal |
| Packaging | Rail/Tube |
| Peripherals | POR, PWM, WDT |
| RAM Size | 1KB |
| RoHS Compliant | Yes |
| Series | C8051F39x |
| Watchdog Timer | Yes |
| Width | 4mm |
| RoHS | Compliant |
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