C8051F504-IQR

Overview

The C8051F504-IQR is an 8-bit mixed-signal microcontroller from the Silicon Labs C8051F50x family, featuring a high-speed CIP-51 core with up to 50 MIPS throughput at a 50 MHz clock. It integrates 64 kB of in-system programmable Flash memory and 4352 bytes of internal data RAM (256 + 4096 XRAM). The device includes a 12-bit ADC supporting up to 200 ksps with 32 external single-ended inputs, two comparators, and a built-in temperature sensor. Digital peripherals include CAN 2.0, LIN 2.1 controllers, hardware UART, SMBus, SPI, four 16-bit timers, and a 16-bit PCA. It operates on a supply voltage of 1.8 V to 5.25 V and is available in a 48-pin QFP/QFN package.

Feature Summary

• High-performance pipelined CIP-51 core executing 70% of instructions in one or two system clocks
• Integrated analog subsystem with 12-bit ADC, dual comparators, and temperature sensor
• On-chip debug circuitry enabling full-speed non-intrusive in-system debugging without external emulators
• Automotive qualified for operation across -40°C to +125°C temperature range

Applications

• Industrial control systems requiring CAN and LIN communication
• Portable medical equipment and weigh scales
• Test equipment and fiber optic systems
• Applications needing mixed-signal processing with high-speed ADC capabilities

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required package type and temperature grade. Check for any recent Product Change Notifications (PCNs) regarding packaging or assembly updates. Ensure compatibility with existing development tools and debug adapters. Review the datasheet revision history for any electrical characteristic changes.

Selection Notes

Select this model when 64 kB of Flash and 4.25 kB of RAM are sufficient for the application. Choose this variant over others in the F50x family based on the specific pin count and peripheral availability required. Consider the automotive qualification if operating in harsh thermal environments. Evaluate power consumption requirements against the typical 19 mA operating current at maximum frequency.

Part Context

This component belongs to the C8051F50x/F51x Mixed Signal ISP Flash MCU Family. It shares architectural similarities with other members like the C8051F500 and C8051F505 but differs in memory size and specific peripheral configurations. The family is characterized by its fully integrated mixed-signal capabilities and compatibility with standard 8051 toolchains.

Replacement Considerations

Silicon Labs recommends EFM32PG26B301F2048IL136 or EFR32PG26 Series 2 MCUs as replacements for new designs due to the 'Not Recommended for New Designs' status.