C8051F041R

Overview

The C8051F041R is an 8-bit microcontroller from Silicon Labs, part of the C8051F04x family. It features a pipelined CIP-51 core operating at up to 25 MHz with 25 MIPS throughput. Memory includes 64 kB Flash and 4352 bytes internal data RAM. Analog peripherals comprise a 12-bit SAR ADC with 13 external inputs and a programmable high-voltage difference amplifier, alongside three analog comparators and a precision voltage reference. Digital interfaces include CAN 2.0B, SMBus, SPI, and dual UARTs. The device supports 2.7 V to 3.6 V supply voltages and operates within a -40 °C to +85 °C temperature range.

Feature Summary

• Integrated 12-bit SAR ADC with programmable gain amplifier and windowed interrupt generator for precise signal acquisition
• Hardware Controller Area Network (CAN 2.0B) module supporting concurrent serial communication protocols
• On-chip JTAG debug circuitry enabling non-intrusive in-system debugging with breakpoints and memory inspection
• Pipelined instruction architecture executing 70% of the instruction set in one or two system clocks

Applications

• Industrial control systems requiring robust CAN bus connectivity
• Data acquisition systems utilizing high-resolution analog-to-digital conversion
• Embedded devices needing non-intrusive hardware debugging capabilities
• Sensor interface modules with integrated signal conditioning

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature grade. Confirm RoHS compliance status as revisions may vary. Check for any product change notices regarding pinout or electrical characteristics updates prior to final design implementation.

Selection Notes

Select this component when a dedicated 12-bit ADC with high-voltage differential input capability is required alongside standard digital interfaces. Ensure the 2.7 V to 3.6 V supply range aligns with the target system power architecture. Consider the 100-pin TQFP footprint requirements for adequate I/O allocation and thermal management.

Part Context

This device belongs to the C8051F04x series of mixed-signal System-on-Chip microcontrollers. It shares the core architecture with variants like the C8051F040 and C8051F042 but differs in analog peripheral configuration, specifically offering a 12-bit ADC instead of a 10-bit version found in other family members.

Replacement Considerations

Direct substitutes within the same family include C8051F040, C8051F042, and C8051F043. Verify pin compatibility and analog peripheral differences, such as ADC resolution and DAC presence, before swapping components.