C8051F506-IMR

Overview

The C8051F506-IMR is an 8-bit mixed-signal microcontroller from the Silicon Labs C8051F50x family, housed in a 32-QFN (5x5) package. It features a high-speed pipelined 8051 core operating at up to 50 MHz with 32 kB of in-system programmable Flash memory and 4.25 kB of internal RAM. The device integrates a 12-bit ADC supporting up to 200 ksps, two comparators, and multiple digital peripherals including CAN 2.0, LIN 2.1, UART, SPI, and SMBus interfaces. It operates on a supply voltage range of 1.8 V to 5.25 V and supports an industrial temperature range of -40°C to +125°C.

Feature Summary

• Integrates a high-performance 8051 CPU core capable of 50 MIPS throughput with a pipelined architecture.
• Includes on-chip debug circuitry for full-speed, non-intrusive in-system debugging without external emulators.
• Features automotive-grade qualification compliant with AEC-Q100 standards for reliable operation in harsh environments.

Applications

• Automotive embedded systems requiring robust communication protocols
• Industrial control applications needing precise analog signal acquisition
• Smart sensor nodes utilizing low-power stop modes

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm the specific suffix matches the required package type and temperature rating. Ensure compatibility with existing design constraints regarding pinout and power supply requirements before finalizing procurement decisions.

Selection Notes

Select this model when a compact 32-pin form factor is required alongside CAN and LIN bus capabilities. Consider the 32 kB Flash size for firmware storage needs and verify that the 25 available I/O pins meet interface requirements. Evaluate the internal oscillator accuracy if external clock sources are not utilized for time-critical operations.

Part Context

This component belongs to the C8051F50x series, which offers pin-for-pin compatibility with the C8051F51x and C8051F58x/59x families. The series is designed as a standalone System-on-a-Chip solution, integrating essential analog and digital peripherals to reduce external component count and simplify board layout for space-constrained designs.

Replacement Considerations

C8051F507-IMR: Offers identical performance but includes additional Flash memory capacity.

FAQ

Does the C8051F506-IMR require an external crystal for CAN or LIN communication?

No, the device features a precision internal 24 MHz oscillator with ±0.5% accuracy, which is sufficient for CAN and master LIN operation without 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.