C8051F062

Overview

The C8051F062 is a highly integrated mixed-signal 8-bit microcontroller from Silicon Labs, featuring a high-speed 8051 core with up to 25 MIPS throughput at a 25 MHz clock. It includes two 16-bit SAR ADCs operating up to 1 Msps and a 10-bit SAR ADC up to 200 ksps. The device integrates 64 kB of in-system programmable Flash memory and 4352 bytes of internal data RAM. Key peripherals include two 12-bit DACs, three analog comparators, a Bosch CAN 2.0B controller, SMBus, SPI, dual UARTs, and multiple timers. It supports an external memory interface and operates within a supply voltage range of 2.7 V to 3.6 V across a temperature range of -40 °C to +85 °C.

Feature Summary

• Dual 16-bit SAR ADCs with direct memory access and programmable throughput up to 1 Msps for high-speed analog acquisition.
• Integrated Bosch CAN 2.0B controller enabling robust serial communication without external transceivers.
• On-chip JTAG debug circuitry providing full-speed, non-intrusive in-circuit debugging with breakpoints and watchpoints.
• Programmable digital crossbar allowing flexible mapping of peripheral signals to general-purpose I/O pins.

Applications

• Industrial control systems requiring precise analog signal processing
• Automotive networks utilizing CAN bus communication protocols
• Data acquisition systems with high-resolution multi-channel input requirements

Procurement Notes

Verify the specific package variant (e.g., 100-pin TQFP) and temperature grade during sourcing. Confirm that the selected component matches the Rev 1.2 datasheet specifications for electrical characteristics. Ensure compatibility with existing firmware regarding the CIP-51 core instruction set and memory map before procurement.

Selection Notes

Select this MCU for applications demanding high-speed analog conversion alongside standard digital interfaces. The inclusion of both 16-bit and 10-bit ADCs allows for simultaneous high-precision and high-throughput sampling. Consider the external memory interface if additional RAM or program storage is required beyond the on-chip 64 kB Flash limit.

Part Context

This device belongs to the C8051F06x family of analog-intensive microcontrollers. It shares architectural similarities with the C8051F060 but differs in specific peripheral configurations such as the presence of the CAN controller and external memory interface options. It represents a standalone system-on-chip solution integrating power management, oscillators, and extensive I/O capabilities.

Replacement Considerations

Direct pin-compatible replacements within the same family include the C8051F060. For upgrades, consider the C8051F064 which offers similar integration but may vary in specific peripheral availability or package options. Verify software compatibility when migrating between variants due to potential differences in register definitions.

FAQ

Does the C8051F062 support differential input for its 16-bit ADCs?

Yes, the two 16-bit SAR ADCs can operate as either two single-ended converters or one differential converter.

What is the maximum throughput for the 16-bit ADCs on this device?

The 16-bit SAR ADCs have a programmable throughput of up to 1 Msps.

Is the CAN controller hardware-based on the C8051F062?

Yes, it features a hardware Bosch Controller Area Network (CAN 2.0B) controller.