8-bit microcontroller featuring an 8051 core architecture, operating at up to 48MHz. This CMOS device offers 32KB of FLASH memory and 2.25KB of RAM, with 25 programmable I/O pins. Integrated peripherals include 3 UART, 3 I2C, 1 SPI, 1 USB, and 5 PWM channels, alongside 6 timers/counters. Packaged in a 5x5mm QFN with tin-matte plating, it supports a supply voltage range of 1.8V to 3.6V and operates from -40°C to 85°C.
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| Package/Case | QFN |
| Contact Plating | Tin, Matte |
| Core Architecture | 8051 |
| Data Bus Width | 8b |
| Frequency | 48MHz |
| Height | 0.85mm |
| Length | 5mm |
| Max Frequency | 48MHz |
| Max Operating Temperature | 85°C |
| Memory Size | 32KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Max Supply Voltage | 3.6V |
| Min Supply Voltage | 1.8V |
| Number of Channels | 5 |
| Number of I/Os | 25 |
| Number of I2C Channels | 3 |
| Number of Programmable I/O | 25 |
| Number of PWM Channels | 5 |
| Number of SPI Channels | 1 |
| Number of Timers/Counters | 6 |
| Number of UART Channels | 3 |
| Number of USB Channels | 1 |
| Oscillator Type | Internal |
| Packaging | Tray |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| RAM Size | 2.25KB |
| RoHS Compliant | Yes |
| Series | C8051F38x |
| Width | 5mm |
| RoHS | Compliant |
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