C8051F231-GQ

Overview

The C8051F231-GQ is an 8-bit microcontroller from Silicon Labs featuring a standard 8051 core. It operates at a maximum clock frequency of 25 MHz and includes 8 kB of in-system programmable Flash memory alongside 256 bytes of data RAM. The device is housed in a 32-pin LQFP package with dimensions of 7x7 mm and a height of 1.4 mm. It supports a supply voltage range of 2.25 V to 3.6 V, ensuring functionality within industrial temperature limits from -40°C to +85°C.

Feature Summary

• Integrates high-speed 8051-compatible CPU architecture for efficient instruction processing.
• Provides in-system programmable non-volatile Flash memory for code storage.
• Supports serial communication protocols including SPI and UART interfaces.

Applications

• Battery-powered sensor nodes
• Industrial control systems
• Embedded monitoring devices

Procurement Notes

Verify the specific suffix 'GQ' against the manufacturer's current documentation to confirm package type and lead-free status. Ensure compatibility with the target operating voltage range of 2.25 V to 3.6 V. Confirm that the 32-pin LQFP footprint matches the PCB design requirements. Check for any recent process change notices or obsolescence warnings from Silicon Labs prior to finalizing procurement.

Selection Notes

Select this component when a compact 8-bit MCU with low power consumption and integrated Flash is required. It is suitable for applications needing SPI or UART connectivity without external interface chips. Consider alternative models if higher clock speeds or larger memory capacities are necessary. Verify that the 256-byte RAM suffices for the application's stack and variable storage needs.

Part Context

This part belongs to the C8051F series of fully mixed-signal microcontrollers by Silicon Labs. These devices integrate analog peripherals on-chip to reduce system complexity. The C8051F231-GQ specifically targets cost-sensitive applications requiring reliable 8051 compatibility and robust digital communication capabilities in a small form factor.

Replacement Considerations

Consult official cross-reference guides for direct pin-compatible alternatives. Verify electrical specifications and memory sizes match before substitution. Note that some variants may have different package options or voltage ranges.

FAQ

What is the maximum operating voltage for the C8051F231-GQ?

The maximum operating voltage is 3.6 V, with a minimum of 2.25 V.

Does the C8051F231-GQ support UART communication?

Yes, the device includes built-in UART interface capabilities.