C8051F226-GQR

Overview

The C8051F226-GQR is an 8-bit microcontroller from Silicon Labs, based on the 8051 core architecture. It features 8 kB of in-system programmable Flash memory and 1.25 kB of data RAM. The device operates with a maximum clock frequency of 25 MHz and supports a supply voltage range of 2.7 V to 3.6 V. It provides 32 general-purpose I/O pins and includes a 32-channel, 8-bit analog-to-digital converter (ADC). Communication interfaces include SPI and UART. The component is housed in a TQFP-48 package and is rated for operation between -40°C and +85°C.

Feature Summary

• Integrates a high-speed 8051-compatible processor core capable of executing instructions at up to 25 MHz.
• Includes a comprehensive mixed-signal peripheral set featuring a 32-channel ADC and multiple digital communication interfaces.
• Supports in-system programming via standard serial interfaces without requiring external programming hardware.

Applications

• Battery-powered sensor nodes requiring low power consumption and mixed-signal capabilities
• Industrial control systems utilizing SPI or UART communication protocols
• Data acquisition systems employing multi-channel analog input monitoring

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Confirm RoHS compliance details as specified in the official datasheet. Ensure handling procedures account for moisture sensitivity classification during storage and reflow soldering processes. Validate package dimensions against PCB footprint requirements prior to integration.

Selection Notes

Select this component when an 8-bit MCU with integrated ADC and moderate Flash capacity is required. Compare pin counts and peripheral sets against alternative models in the C8051F series if higher performance or additional interfaces are needed. Consider the TQFP-48 package constraints for board layout and thermal management requirements.

Part Context

This part belongs to the Silicon Labs C8051F22x family of fully integrated mixed-signal microcontrollers. These devices combine a fast 8051 CPU with extensive on-chip peripherals, reducing system component count. The GQR suffix indicates the specific TQFP-48 package variant suitable for surface-mount assembly.

Replacement Considerations

Public documentation indicates this model has reached end-of-life status. Consult official Silicon Labs resources for verified replacement part numbers within the same product family or compatible successors.