C8051F300-GSR

Overview

The C8051F300-GSR is a mixed-signal ISP Flash microcontroller from Silicon Labs, featuring an 8051 core operating at up to 25 MHz. It includes 8 kB of Flash memory and 256 bytes of internal data RAM. The device integrates an 8-bit ADC with up to 500 ksps throughput and eight external inputs, alongside a low-current comparator. It operates on a supply voltage of 2.7 V to 3.6 V within a temperature range of –40 °C to +85 °C. Available in an 11-pin QFN package.

Feature Summary

• Integrated 8-bit analog-to-digital converter supporting high-speed sampling and multiple programmable amplifier gains.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Hardware-enhanced serial communication ports including UART and SMBus for reliable data transfer.
• Programmable digital I/O with five-volt tolerance and high sink current capabilities.

Applications

• Data acquisition systems requiring onboard analog signal processing
• Industrial control logic utilizing hardware serial interfaces
• Embedded sensor interface designs with integrated temperature sensing

Procurement Notes

Verify the specific suffix 'GSR' against official documentation to confirm package type and temperature grade alignment. Confirm that the component status is acceptable for your project lifecycle, as this family is marked not recommended for new designs. Ensure compatibility with existing board layouts and software drivers before procurement.

Selection Notes

Select this component when a compact mixed-signal solution with integrated ADC and comparators is required. It suits applications needing direct USB or serial connectivity via enhanced peripherals. Consider the limited pin count and memory size relative to system complexity. Evaluate power consumption requirements against typical operating currents specified for various clock speeds.

Part Context

This part belongs to the C8051F30x family of highly integrated mixed-signal System-on-Chip solutions. These devices combine a high-speed 8051 microcontroller core with extensive on-chip peripherals. The family is designed to reduce component count and simplify design cycles for embedded applications requiring both digital control and analog signal conditioning capabilities.

Replacement Considerations

Silicon Labs recommends alternative components for new designs due to the status of this family. Consult official substitution guides for compatible successors within the C8051F series or other modern microcontroller lines offering similar peripheral sets and package footprints.

FAQ

What is the maximum sampling rate of the integrated ADC?

The integrated 8-bit analog-to-digital converter supports a maximum sampling rate of up to 500 ksps.

Does the device support in-system debugging?

Yes, it features on-chip debug circuitry that facilitates full-speed, non-intrusive in-system debugging without requiring external emulation hardware.