C8051F854-C-IUR

Overview

The C8051F854-C-IUR is an 8-bit microcontroller from the Silicon Labs C8051F85x family, featuring a high-speed CIP-51 core operating at up to 25 MHz. It integrates 8 kB of in-system programmable Flash memory and 512 bytes of RAM. The device includes a 12-bit ADC with up to 16 channels, two analog comparators, and multiple communication peripherals including UART, I2C/SMBus, and SPI. Powered by a 2.2 V to 3.6 V supply, it operates within a temperature range of -40°C to +125°C and is housed in a 24-pin QSOP package.

Feature Summary

• High-Speed CIP-51 Core: Pipelined architecture delivering up to 25 MIPS throughput using the standard 8051 instruction set.
• On-Chip Debug Circuitry: Facilitates full-speed, non-intrusive in-system debugging without requiring external emulators.
• Integrated Analog Peripherals: Features a 12-bit ADC with up to 16 input channels and two low-current analog comparators.
• Flexible Communication Interfaces: Supports UART, I2C/SMBus, and SPI protocols for versatile system connectivity.

Applications

• Industrial control systems requiring robust 8-bit processing
• Smart sensors utilizing integrated ADC and comparator functions
• Battery-powered devices benefiting from low-power modes
• Embedded applications needing in-system programmability

Procurement Notes

Verify the specific suffix 'IUR' against the manufacturer's official ordering guide to confirm package type and tape-and-reel configuration. Ensure the industrial temperature grade (-Ix) matches your environmental requirements. Confirm RoHS compliance status with the supplier prior to purchase.

Selection Notes

Select this component when a cost-effective 8-bit MCU with integrated analog capabilities is required. The CIP-51 core offers enhanced performance over traditional 8051 designs. Consider the 24-pin QSOP package constraints and verify that the 8 kB Flash and 512-byte RAM meet application memory needs.

Part Context

This part belongs to the C8051F85x/86x family of low-cost 8-bit MCUs. The series is characterized by its high integration, combining digital processing with analog peripherals on a single chip. It is designed for applications demanding reliable performance in compact form factors.

Replacement Considerations

Consult the manufacturer's current product selection guide for direct replacements or pin-compatible alternatives within the C8051F85x family. Verify functional equivalence regarding memory size, peripheral availability, and package dimensions before substitution.

FAQ

What is the maximum system clock frequency?

The maximum system clock frequency is 25 MHz.

Does the device support in-system programming?

Yes, the Flash memory is in-system programmable in 512-Byte sectors.

What is the operating voltage range?

The recommended operating supply voltage (VDD) ranges from 2.2 V to 3.6 V.