C8051F047-GQ

Overview

The C8051F047-GQ is an 8-bit mixed-signal microcontroller from the C8051F04x family, featuring a high-speed CIP-51 core with up to 25 MIPS throughput at a 25 MHz clock. It integrates 32 kB of in-system programmable Flash memory and 4352 bytes of internal data RAM. The device includes a 10-bit SAR ADC with up to 13 external inputs and a programmable throughput of 100 ksps. Digital peripherals include a Bosch CAN 2.0B controller, hardware SMBus/I2C, SPI, and two UARTs. It operates on a supply voltage of 2.7 V to 3.6 V within a temperature range of –40 °C to +85 °C.

Feature Summary

• High-performance pipelined 8051 core executing 70% of instructions in one or two system clocks
• Integrated full-duplex serial communication interfaces including CAN, SMBus, SPI, and dual UARTs
• On-chip debug circuitry supporting non-intrusive in-circuit debugging and IEEE 1149.1 boundary scan
• Programmable digital I/O crossbar allowing flexible peripheral pin assignment

Applications

• Industrial control systems requiring robust communication protocols
• Data acquisition systems utilizing integrated analog-to-digital conversion
• Embedded sensor interface applications with real-time processing needs

Procurement Notes

Verify component authenticity through authorized Silicon Labs distributors or certified partners. Confirm package integrity and pin alignment against the 100-TQFP specification before integration. Ensure design compliance with the documented absolute maximum ratings for voltage and temperature to prevent device damage. Review the latest datasheet revision for any updates to electrical characteristics or pin definitions prior to finalizing procurement orders.

Selection Notes

Select this model when a fully integrated mixed-signal solution with CAN bus capability is required. It is suitable for designs needing multiple serial interfaces without external transceivers. Consider the 10-bit ADC resolution and 32 kB Flash capacity for moderate complexity firmware. Evaluate power consumption requirements against the available sleep modes if battery operation is a constraint.

Part Context

This component belongs to the C8051F04x series of 8-bit microcontrollers designed by Silicon Labs. The series is characterized by its high degree of integration, combining a fast 8051-compatible processor with extensive analog and digital peripherals on a single chip. This architecture reduces board space and component count compared to discrete solutions.

Replacement Considerations

The datasheet explicitly states that the C8051F04x family is Not Recommended for New Designs. Engineers should evaluate newer Silicon Labs 8-bit MCU families such as the EFM8BB series for future projects. Existing designs using this part may continue production but should consider long-term availability risks.