C8051F045-GQ

Overview

The C8051F045-GQ is an 8-bit microcontroller from the Silicon Labs C8051F04x family, featuring a high-speed pipelined 8051 core operating at up to 25 MHz. It integrates 64 kB of in-system programmable Flash memory and 4352 bytes of internal data RAM. The device includes a 10-bit SAR ADC with 13 external inputs, a built-in temperature sensor, and a precision VDD monitor. Digital peripherals consist of a Bosch CAN controller, SMBus, SPI, two UARTs, and multiple timers. It operates on a 2.7 V to 3.6 V supply within a -40 °C to +85 °C temperature range.

Feature Summary

• Integrated Bosch CAN 2.0B controller for robust serial communication
• On-chip JTAG debug circuitry enabling non-intrusive in-circuit debugging
• High-speed 8051 core with pipelined architecture for improved throughput
• Mixed-signal capabilities including 10-bit ADC and programmable voltage reference

Applications

• Industrial control systems requiring CAN bus connectivity
• Data acquisition applications utilizing onboard analog-to-digital conversion
• Embedded systems needing in-system programmability for field upgrades
• Temperature monitoring solutions leveraging integrated sensors

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity upon receipt, as the TQFP-64 form factor requires careful handling during inspection. Ensure that the specific revision matches project requirements, noting that this part is designated as Not Recommended for New Designs. Validate all electrical specifications against current datasheet revisions before finalizing procurement orders.

Selection Notes

Select this component when a fully static 8051 MCU with integrated CAN functionality is required. It is suitable for designs prioritizing mixed-signal processing alongside digital control. Consider the available I/O ports and peripheral set against application constraints. Note that alternative packages exist within the same family; verify pin compatibility if substituting other variants like the C8051F044.

Part Context

This device belongs to the C8051F04x series of fully integrated mixed-signal microcontrollers. The family shares a common CIP-51 core and peripheral architecture, differing primarily in memory size and specific analog features. The C8051F045 variant specifically offers 64 kB Flash and a 10-bit ADC, distinguishing it from lower-memory or higher-resolution ADC models within the same product line.

Replacement Considerations

Public confirmed substitute part numbers: C8051F044-GQ.