C8051F300-GM

Overview

The C8051F300-GM is a mixed-signal ISP Flash microcontroller from Silicon Labs, featuring an 8051 core with up to 25 MHz clock speed and 25 MIPS throughput. It includes 8 kB of in-system programmable Flash memory and 256 bytes of internal data RAM. The device integrates an 8-bit ADC with up to 500 ksps sampling rate and eight external inputs, alongside a low-current comparator. Operating on a 2.7 V to 3.6 V supply, it supports digital peripherals including UART, SMBus, three 16-bit timers, and a Programmable Counter Array. The component is housed in an 11-pin QFN package measuring 3x3 mm.

Feature Summary

• Integrated 8-bit analog-to-digital converter with programmable amplifier gains and built-in temperature sensor
• On-chip debug circuitry enabling full-speed non-intrusive in-system debugging without external emulators
• High-speed pipelined 8051 core executing majority of instructions in one or two system clocks
• Low current consumption with typical stop mode current of 0.1 μA

Applications

• In-system programming and firmware updates via Flash reprogramming
• Data acquisition systems utilizing the onboard ADC and temperature sensor
• Embedded control logic requiring hardware-enhanced serial communication interfaces
• Power-sensitive applications leveraging multiple power management modes

Procurement Notes

Verify component authenticity through official Silicon Labs channels or authorized distributors. Confirm the specific suffix matches the required package type. Check for end-of-life status as this family may be designated Not Recommended for New Designs. Ensure compatibility with existing development tools and verify that all electrical specifications meet the target application requirements before finalizing procurement decisions.

Selection Notes

Select this model when an integrated mixed-signal solution with direct USB-like connectivity capabilities via peripheral expansion is required. Consider the 8-bit ADC resolution and limited I/O count for simpler control tasks. Evaluate the 25 MHz performance ceiling against processing demands. Verify that the 11-pin QFN footprint fits the mechanical constraints of the design. Assess if the available Flash size meets long-term storage needs.

Part Context

This component belongs to the C8051F30x/1/2/3/4/5 mixed-signal ISP Flash MCU family. These devices are designed as single-chip solutions combining a high-speed 8051 CPU with extensive analog and digital peripherals. The family emphasizes ease of development through on-chip debug features and in-system programmability, targeting cost-sensitive embedded applications requiring moderate processing power and signal conditioning.

Replacement Considerations

Consult the manufacturer's product selection guide for pin-compatible or functionally equivalent alternatives within the same series. Verify that any substitute maintains the required package dimensions and voltage operating range. Cross-reference peripheral availability to ensure necessary interfaces remain supported in the replacement part.