C8051F580-IQR

Overview

The C8051F580-IQR is a mixed-signal ISP Flash MCU from the Silicon Labs C8051F58x family, featuring a high-speed 8051 core with up to 50 MIPS throughput at a 50 MHz clock. It integrates 128 KB of banked Flash memory and 8448 bytes of internal data RAM (256 + 8192 XRAM). The device includes a 12-bit ADC supporting up to 32 external single-ended inputs and 200 ksps conversion rates. Connectivity options include CAN 2.0, LIN 2.1, two UARTs, SMBus, and SPI. It operates on a supply voltage of 1.8 V to 5.25 V and is housed in a 48-TQFP package.

Feature Summary

• High-Speed 8051 Core: Pipelined architecture executing 70% of instructions in 1 or 2 system clocks for up to 50 MIPS throughput.
• Mixed-Signal Integration: Includes a 12-bit ADC with up to 32 inputs, three comparators, and an internal temperature sensor.
• Digital Peripherals: Features CAN 2.0 and LIN 2.1 controllers without requiring external crystals, alongside dual UARTs and enhanced SPI.
• On-Chip Debug: Facilitates full-speed, non-intrusive in-system debugging with breakpoints and register inspection capabilities.

Applications

• Industrial control systems requiring robust communication protocols like CAN and LIN.
• Automotive applications operating within -40°C to +125°C temperature ranges.
• Data acquisition systems utilizing the high-speed 12-bit ADC and multiple analog inputs.
• Embedded devices needing in-system programmability via Flash memory.

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific revision level matches project requirements, as datasheet Rev 1.7 indicates the product is not recommended for new designs. Ensure packaging details align with assembly specifications, noting the 48-TQFP form factor. Cross-reference ordering information tables for exact suffix definitions regarding temperature grades and package types before finalizing procurement orders.

Selection Notes

Select this MCU when existing designs utilize the C8051F58x family and require maintenance rather than new development. Evaluate pin compatibility if migrating between variants within the F58x series, such as differences in I/O counts or peripheral availability. Consider the transition to newer Silicon Labs architectures for future projects due to the 'Not Recommended for New Designs' status. Assess power consumption profiles against application needs, noting typical operating currents at maximum clock speeds.

Part Context

The C8051F580-IQR belongs to the C8051F58x/F59x Mixed Signal ISP Flash MCU Family by Silicon Laboratories. This family represents a line of highly integrated microcontrollers combining 8051 processing cores with extensive analog and digital peripherals. The C8051F580 specifically offers 40 I/O lines and supports both multiplexed and non-multiplexed external memory interfaces, positioning it within the mid-range performance tier of the series.

Replacement Considerations

Silicon Labs designates the C8051F58x/F59x family as Not Recommended for New Designs. No direct official substitute part numbers are listed in the provided documentation for the C8051F580-IQR. Engineers should evaluate migration paths to modern Silicon Labs 8-bit or 32-bit MCU families that offer updated features and long-term support.

FAQ

Does the C8051F580 require an external crystal for CAN and LIN operation?

No, the C8051F580 includes an internal 24 MHz oscillator with ±0.5% accuracy, which is sufficient for CAN and master LIN operation without requiring an external crystal.

What is the maximum throughput of the C8051F580 core?

The C8051F580 features a high-speed 8051 core capable of up to 50 MIPS throughput when operating at a 50 MHz system clock.

Is the C8051F580 suitable for automotive applications?

Yes, the device is automotive qualified and supports an extended temperature range of –40 to +125 °C, making it suitable for automotive environments.