8-Bit Microcontroller (MCU) featuring an 8051 core architecture and 8KB of FLASH memory. Operates at a maximum frequency of 25MHz with an 8-bit data bus. Includes 16 programmable I/O pins, 10 ADC channels, and multiple communication interfaces including I2C, SPI, UART, USART, and SMBus. This CMOS component is housed in a 3x3mm QFN package, operates from 1.8V to 3.6V, and offers peripherals like Brown-out Detect, POR, PWM, WDT, and an internal oscillator. RoHS compliant with an operating temperature range of -40°C to 85°C.
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| Package/Case | QFN |
| Core Architecture | 8051 |
| Data Bus Width | 8b |
| Frequency | 25MHz |
| Height | 1mm |
| Interface | I2C, SPI, UART, USART, SMBus, 2-Wire |
| Length | 4mm |
| Max Frequency | 25MHz |
| Max Operating Temperature | 85°C |
| Max Supply Voltage | 3.6V |
| Memory Size | 8KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Min Supply Voltage | 1.8V |
| Number of ADC Channels | 10 |
| Number of I/Os | 16 |
| Number of Programmable I/O | 16 |
| Number of SPI Channels | 1 |
| Number of Timers/Counters | 4 |
| Number of UART Channels | 1 |
| Operating Supply Voltage | 2.4V |
| Oscillator Type | Internal |
| Packaging | Rail/Tube |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, Temp Sensor |
| Radiation Hardening | No |
| RAM Size | 0.5KB |
| RoHS Compliant | Yes |
| Series | C8051F9xx |
| Watchdog Timer | Yes |
| Width | 4mm |
| RoHS | Compliant |
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