C8051F500-IQ

Overview

The C8051F500-IQ is an automotive-grade mixed-signal microcontroller from Silicon Labs, featuring a high-speed pipelined 8051 core operating at up to 50 MHz. It integrates 64 kB of in-system programmable Flash memory and 4352 bytes of internal data RAM. The device includes a 12-bit ADC with up to 200 ksps sampling rate, two voltage comparators, and a built-in temperature sensor. Communication interfaces include CAN 2.0, LIN 2.1, UART, SMBus, and SPI. It operates on a supply voltage of 1.8 V to 5.25 V and supports a wide industrial temperature range of -40 °C to +125 °C.

Feature Summary

• Automotive qualified to AEC-Q100 standards for robust reliability
• Integrated CAN 2.0 and LIN 2.1 controllers without external crystals
• High-performance 8051 core with pipelined architecture for fast execution
• On-chip debug circuitry enabling non-intrusive in-system debugging

Applications

• Motor control systems
• Sensor interface circuits
• Parking assistance modules
• Seat position and adjustment mechanisms
• Fluid level monitoring

Procurement Notes

Verify the specific suffix 'IQ' corresponds to the required package type and temperature grade. Confirm that the component status aligns with project timelines as this family may be marked as not recommended for new designs. Ensure compatibility with existing toolchains and development kits before finalizing procurement decisions.

Selection Notes

Select this model when automotive qualification and integrated CAN/LIN capabilities are required within a constrained space. Consider the 64 kB Flash capacity and 40 I/O pins against application needs. Evaluate power consumption requirements in stop mode versus active operation at maximum clock speeds to ensure system efficiency meets design constraints.

Part Context

This component belongs to the C8051F50x/F51x family of mixed-signal ISPs Flash MCUs. It shares pin-for-pin compatibility with other devices in the series, such as the C8051F51x and C8051F58x/59x families. This allows for flexible migration between different memory configurations or peripheral sets within the same package footprint.

Replacement Considerations

Silicon Labs recommends the EFM8BB31F64I-QFN32 as a replacement for this part.