C8051F553-IM

Overview

The C8051F553-IM is an automotive-grade mixed-signal microcontroller from Silicon Labs, based on the C8051F55x family. It features a high-speed 8051 core operating at up to 50 MHz with pipelined architecture. The device integrates 32 kB of in-system programmable Flash memory and 2304 bytes of internal data RAM (including 2048 bytes XRAM). Key analog peripherals include a 12-bit ADC supporting up to 200 ksps and two comparators. Digital interfaces encompass CAN 2.0, LIN 2.1, UART, SMBus, and SPI. It operates within a supply voltage range of 1.8 V to 5.25 V and supports an extended temperature range of –40 °C to +125 °C, compliant with AEC-Q100 standards.

Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 for reliability in harsh environments
• Integrated CAN 2.0 and LIN 2.1 controllers enabling direct network connectivity without external crystals
• High-performance 8051 core with pipelined execution delivering up to 50 MIPS throughput
• On-chip debug circuitry facilitating full-speed, non-intrusive in-system development

Applications

• Motor control systems
• Sensor interface modules
• Parking assistance units
• Seat position and adjustment controllers
• Fluid level monitoring devices

Procurement Notes

Verify component status as this part may be marked Not Recommended for New Designs. Confirm end-of-life or last-time-buy announcements prior to procurement. Ensure design reviews account for potential obsolescence and transition planning to successor families if long-term production support is required.

Selection Notes

Select this MCU for applications requiring robust automotive communication protocols like CAN and LIN integrated directly into a single chip. The combination of high-speed processing, extensive analog capabilities, and wide operating temperature range makes it suitable for industrial and automotive sensor nodes where system-on-chip integration reduces bill-of-materials complexity.

Part Context

This component belongs to the C8051F55x/56x/57x Mixed Signal ISP Flash MCU Family. These devices are designed as highly integrated solutions for automotive and industrial markets, offering significant pin count variations across the series while maintaining consistent core architecture and peripheral sets.

Replacement Considerations

Silicon Labs recommends EFM8BB52F16I-QFN20 as a replacement for this part due to its End of Life status.