C8051F582-IQ

Overview

The C8051F582-IQ is an 8-bit mixed-signal microcontroller from the Silicon Labs C8051F58x family, featuring a high-speed CIP-51 core operating at up to 50 MHz. It integrates 128 kB of banked Flash memory and 8448 bytes of internal data RAM. The device includes a 12-bit ADC with up to 200 ksps throughput, three comparators, and a built-in temperature sensor. Digital peripherals comprise CAN 2.0, LIN 2.1, two UARTs, SMBus, and SPI interfaces. It supports 25 port I/O pins, operates on a supply voltage of 1.8 V to 5.25 V, and is qualified for automotive applications within a temperature range of –40 °C to +125 °C.

Feature Summary

• High-performance CIP-51 8051 core with pipelined architecture delivering up to 50 MIPS throughput.
• Integrated analog subsystem including a 12-bit ADC, programmable comparators, and voltage reference.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Automotive qualification supporting operation across extended industrial temperature ranges.

Applications

• Automotive embedded control systems
• Industrial process monitoring and control
• Data acquisition systems requiring high-resolution analog input

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against datasheet specifications prior to integration. Ensure compliance with RoHS standards and verify that the specific ordering suffix matches the required thermal and mechanical parameters for the target application environment.

Selection Notes

Evaluate system requirements against the available peripheral set, specifically checking if the 25-port I/O configuration and memory capacity meet design constraints. Consider the availability of development tools and software support for the CIP-51 architecture. Assess power consumption profiles across different clock speeds and sleep modes to ensure compatibility with energy efficiency targets.

Part Context

This component belongs to the C8051F58x/F59x mixed-signal ISP Flash MCU family. These devices are designed for applications demanding high integration and robust analog capabilities within an 8-bit architecture. The family emphasizes ease of use through extensive on-chip resources and flexible clocking options.

Replacement Considerations

Silicon Labs EFM8BB31F64I-D-QFN32R is a documented alternative. Verify functional equivalence regarding pinout, memory size, and peripheral availability before substitution.

FAQ

Does the C8051F582-IQ require an external crystal for CAN bus communication?

No, the device features an internal oscillator with sufficient accuracy for CAN and master LIN operation, eliminating the need for an external crystal.

What is the maximum sampling rate of the integrated ADC?

The 12-bit ADC supports a maximum sampling rate of up to 200 ksps.