C8051F045-GQR

Overview

The C8051F045-GQR 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, three analog comparators, and a precision voltage reference. Digital peripherals include a Bosch CAN 2.0B controller, SMBus, SPI, two UARTs, and multiple timers. It operates on a supply voltage of 2.7 V to 3.6 V within an industrial temperature range of -40 °C to +85 °C.

Feature Summary

• Integrates a high-speed 8051 core with pipelined architecture for efficient instruction execution.
• Includes a 10-bit SAR ADC with programmable throughput and differential input capabilities.
• Features on-chip JTAG debug circuitry for non-intrusive in-circuit debugging and boundary scan.
• Supports concurrent communication via CAN 2.0B, SMBus, SPI, and dual UART interfaces.

Applications

• Industrial control systems requiring CAN bus connectivity
• Data acquisition applications utilizing onboard analog-to-digital conversion
• Embedded systems needing in-system programmability and debug support

Procurement Notes

Verify component authenticity through authorized channels as this part is marked Not Recommended for New Designs. Confirm package integrity upon receipt, specifically checking for TQFP-64 pin alignment. Review the latest datasheet revision for any updates to electrical characteristics or recommended operating conditions before finalizing procurement specifications.

Selection Notes

Select this component when a fully static 8051 MCU with integrated CAN and high-resolution ADC is required. Ensure the design accommodates the 2.7 V to 3.6 V supply range. Consider the 64-pin TQFP footprint constraints. Evaluate if the discontinued status aligns with long-term production requirements or if a newer alternative is necessary.

Part Context

This device belongs to the C8051F04x series of mixed-signal microcontrollers. It shares architectural similarities with siblings like the C8051F040 and C8051F042 but differs in specific peripheral configurations such as ADC resolution and port availability. The GQR suffix denotes the 64-pin TQFP package variant suitable for surface-mount assembly.

Replacement Considerations

Public confirmed substitute part numbers: None available.