C8051F045

Overview

The C8051F045-GQR is a fully integrated mixed-signal System-on-Chip microcontroller manufactured by Silicon Labs. It features an enhanced 8051 core operating at up to 25 MHz, providing 25 MIPS throughput. The device includes 64 kB of in-system programmable Flash memory and 4352 bytes of internal data RAM. Key peripherals include a 10-bit SAR ADC with 13 external inputs, a Bosch CAN 2.0B controller, SMBus, SPI, and dual UARTs. It operates within a supply voltage range of 2.7 V to 3.6 V and supports industrial temperatures from -40 °C to +85 °C.

Feature Summary

• Integrates a high-speed pipelined 8051 core capable of executing 70% of the instruction set in one or two system clocks.
• Includes a hardware Bosch CAN 2.0B controller for robust serial communication alongside multiple digital interfaces.
• Features a 10-bit SAR ADC with programmable gain amplifier and windowed interrupt generator for analog signal processing.
• Provides on-chip JTAG debug circuitry supporting non-intrusive in-circuit debugging and boundary scan capabilities.

Applications

• Industrial control systems requiring CAN bus connectivity
• Data acquisition systems utilizing onboard ADC and comparators
• Embedded sensor interface modules
• Portable instrumentation devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against TQFP-64 specifications. Review datasheet revision history for any errata updates prior to final design implementation. Ensure environmental ratings match operational requirements.

Selection Notes

Select this model when a complete mixed-signal solution with integrated CAN capability is required. Consider the 64 kB Flash size and 10-bit ADC resolution for specific application needs. Evaluate power consumption profiles across different sleep modes if battery operation is intended. Verify that the 2.7 V to 3.6 V supply range aligns with system power architecture.

Part Context

This component belongs to the C8051F04x family of fully integrated mixed-signal microcontrollers. These devices are designed to reduce board space and component count by integrating analog and digital peripherals onto a single chip. The family shares a common CIP-51 core architecture but varies in peripheral sets and memory sizes.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official Silicon Labs resources for current product lifecycle status and potential obsolescence notices.