C8051F301-GS

Overview

The C8051F301-GS is a mixed-signal ISP Flash microcontroller from Silicon Labs, part of the C8051F30x family. It features an 8051-compatible core with up to 25 MIPS throughput at 25 MHz. The device includes 8 kB of in-system programmable Flash memory and 256 bytes of internal data RAM. Digital peripherals consist of hardware-enhanced UART and SMBus ports, three 16-bit counter/timers, and a Programmable Counter Array (PCA) with capture/compare modules. It operates on a supply voltage of 2.7 to 3.6 V and supports 11-pin QFN or 14-pin SOIC packages.

Feature Summary

• Integrated on-chip debug circuitry for full-speed, non-intrusive in-system debugging without external emulators.
• Pipelined instruction architecture executes 70% of instructions in one or two system clocks for high throughput.
• Hardware-enhanced serial communication interfaces including UART and SMBus.
• Programmable digital I/O with all pins being 5 V tolerant.

Applications

• In-system programming and code execution
• Serial communication gateway design
• Embedded control systems requiring real-time processing

Procurement Notes

Verify the specific package variant (QFN-11 or SOIC-14) required for your PCB footprint before ordering. Confirm that the component revision matches your design specifications, as this series is marked Not Recommended for New Designs. Ensure compatibility with existing firmware architectures given the legacy status of the product line.

Selection Notes

Select this model when a fully integrated mixed-signal MCU with direct 8051 compatibility is needed. It is suitable for applications prioritizing low power consumption and high integration over new feature sets. Consider alternative newer generation devices if long-term supply assurance is critical for future production runs.

Part Context

This component belongs to the C8051F30x series of mixed-signal microcontrollers. It shares architectural similarities with the C8051F300, differing primarily in the absence of the 8-bit ADC found in other variants. The series is designed for cost-sensitive embedded applications requiring robust analog and digital peripheral integration within a compact form factor.

Replacement Considerations

C8051F300-GS

FAQ

Does the C8051F301 include an onboard Analog-to-Digital Converter?

No, the C8051F301 does not include an onboard ADC; this peripheral is available only in the C8051F300 and C8051F302 models.

What clock sources are supported by this microcontroller?

It supports an internal oscillator with 24.5 MHz accuracy and external oscillators using crystals, RC circuits, capacitors, or external clock signals.