C8051F863-C-ISR

Overview

The C8051F863-C-ISR is an 8-bit microcontroller from the Silicon Labs C8051F85x/86x family, featuring a high-speed CIP-51 core with up to 25 MIPS throughput at a 25 MHz clock. It integrates 8 kB of in-system programmable Flash memory and 512 Bytes of RAM. The device includes a 12-bit ADC with up to 16 input channels, two analog comparators, four 16-bit timers, and a Programmable Counter Array. Communication interfaces include UART, I2C/SMBus, and SPI. It operates on a 2.2 to 3.6 V supply and is available in a 16-pin SOIC package.

Feature Summary

• High-performance CIP-51 core with pipelined architecture for efficient instruction execution
• Integrated 12-bit Analog-to-Digital Converter supporting multiple input channels and modes
• On-chip debug circuitry enabling full-speed, non-intrusive system debugging without external emulators
• Low-power operation with internal oscillators and configurable power management modes

Applications

• Industrial control systems requiring mixed-signal processing
• Battery-powered devices utilizing low-power operating modes
• Data acquisition applications leveraging the integrated ADC
• Embedded systems needing robust communication via UART, I2C, or SPI

Procurement Notes

Verify the specific suffix -ISR against the manufacturer's current documentation to confirm package type and temperature range. Confirm if the part is marked as Not Recommended for New Designs (NRND) to assess long-term availability risks. Ensure compatibility with existing design tools and development environments supported by the C8051F family.

Selection Notes

Select this component when a cost-effective 8-bit MCU with sufficient analog peripherals is required. The 16-pin SOIC package suits space-constrained designs. Consider the 25 MHz maximum speed and 8 kB Flash capacity against application requirements. Evaluate the need for industrial temperature ratings (-Ix) versus commercial grades (-Gx) based on environmental conditions.

Part Context

The C8051F863 belongs to the C8051F85x/86x series, which are low-cost 8-bit MCUs designed for high integration. This family combines a standard 8051-compatible core with extensive on-chip resources, reducing the need for external components. The series is positioned for applications balancing performance, peripheral richness, and cost efficiency in embedded markets.

Replacement Considerations

Check for direct pin-compatible substitutes within the C8051F85x/86x family, such as the C8051F860 or C8051F861, ensuring memory sizes match requirements. Verify that any alternative maintains the same 16-pin SOIC package and voltage specifications.