C8051F120 – 8-Bit 100MHz Microcontroller with 128KB Flash – Silicon Labs

Upgrade your embedded designs with the high-performance C8051F120 microcontroller from Silicon Labs. This versatile 8-bit IC delivers exceptional processing speed, rich connectivity, and robust integration—ideal for complex control systems requiring reliability and precision. PCX ensures genuine Silicon Labs components with rapid shipping and dedicated technical support.

Key Features

• Core: 8-Bit 8051 Processor @ 100MHz
• Memory: 128KB Flash, 8.25KB RAM
• Voltage Range: 3V to 3.6V (Low-Power Optimized)
• I/O Capability: 64 Programmable Pins
• Connectivity: I2C, SPI, UART, EBI/EMI
• Data Conversion: 8-Channel 12-bit ADC + Dual 12-bit DAC
• Operating Temp: -40°C to +85°C (Industrial Grade)

Technical Details

The C8051F120 integrates an enhanced 8051 core capable of 100 MIPS throughput. It features 128KB of reprogrammable Flash memory and 8.25KB RAM for data-intensive tasks. On-chip peripherals include a temperature sensor, power-on reset (POR), brown-out detection, PWM controllers, and a watchdog timer (WDT). The device offers flexible communication via dual SMBus (I2C), SPI, UART/USART, and external memory interfaces. Housed in a compact 100-TQFP package (14x14mm), it operates across industrial temperature ranges with an internal oscillator.

Typical Applications

• Industrial Automation & Process Control
• Motor Drive Systems
• Medical Monitoring Devices
• IoT Gateways and Sensors
• Legacy System Upgrades

About Silicon Labs

Silicon Labs is a global leader in mixed-signal integrated circuits, renowned for innovation in embedded systems and IoT solutions. With over two decades of expertise, their microcontrollers set industry benchmarks for energy efficiency, integration, and wireless capabilities.

The C8051F12x series exemplifies Silicon Labs’ commitment to robust, scalable architectures. Though marked obsolete, these components remain trusted in critical applications due to their proven reliability and extensive development ecosystem. PCX partners directly to source authentic Silicon Labs ICs.

About Microcontrollers

Microcontrollers (MCUs) serve as the computational heart of embedded systems, combining a processor core, memory, and programmable I/O on a single chip. They execute dedicated tasks in real-time, making them indispensable for automation, consumer electronics, and automotive systems.

Modern MCUs like the C8051F120 balance processing power with peripheral integration—reducing component count and development time. Selecting industrial-grade variants ensures stability in harsh environments. PCX provides lifecycle management support for legacy and active MCUs alike.

Packaging

Supplied in protective trays. Contact PCX for Tape & Reel or custom packaging options.

FAQs

Q: Is this MCU still suitable for new designs?
A: While marked obsolete, it remains ideal for legacy system maintenance or where design requalification isn’t feasible. PCX stocks genuine units.

Q: What development tools support the C8051F120?
A: Silicon Labs’ IDE and programmer/debuggers (e.g., USB Debug Adapter) are compatible. Datasheets are available on PCXCo.com.

Q: Does it require external memory?
A: The integrated 128KB Flash and 8.25KB RAM suffice for most applications. EBI/EMI interfaces support optional expansion.

Q: Can it operate at 5V?
A: No. This 3.3V device (3.0–3.6V range) features low-power DDR3L compatibility.

Q: Are there pin-compatible upgrades?
A: Silicon Labs’ EFM8 or C8051F96x families may offer alternatives. Contact PCX for cross-reference assistance.

Q: How quickly can PCX ship this part?
A: Most orders ship same-day. Inquire for real-time stock verification.

⚠️ Disclaimer: Product image is representational. Refer to datasheets for exact specifications.

Secure Your Silicon Labs Solution Now!

Don’t let obsolescence delay your project—PCX delivers authentic C8051F120 microcontrollers with traceable quality. Order today for fast delivery! [Link to Datasheet: PCXCo.com/datasheets/C8051F120]