C8051F850-C-IM

Overview

The C8051F850-C-IM is an 8-bit microcontroller from the C8051F85x/86x 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 input channels, two analog comparators, and multiple communication peripherals including UART, SPI, and I2C/SMBus. It operates within a supply voltage range of 2.2 V to 3.6 V and supports an industrial temperature range of –40 °C to +125 °C.

Feature Summary

• High-performance CIP-51 core with pipelined architecture for efficient instruction execution
• Integrated mixed-signal capabilities including 12-bit ADC and analog comparators
• On-chip debug circuitry enabling full-speed, non-intrusive system debugging without external emulators
• Flexible I/O configuration with 5 V-tolerant pins and configurable crossbar

Applications

• Industrial process control systems requiring robust analog signal acquisition
• Battery-powered devices utilizing low-power internal oscillators
• Motor control applications leveraging PCA PWM capabilities
• Data logging systems using integrated CRC engines for data integrity

Procurement Notes

Verify the specific suffix 'IM' confirms the industrial temperature grade (-40°C to +125°C) and QFN-20 package. Confirm component status as Not Recommended for New Designs (NRND) against current project lifecycle requirements. Ensure compatibility with existing firmware architectures designed for the C8051F85x series before procurement.

Selection Notes

Select this component when a standard 8051-compatible architecture is required alongside high integration of analog peripherals. The CIP-51 core offers superior throughput compared to traditional 8051 designs. Consider the NRND status for long-term production viability. Evaluate the 2.2V to 3.6V supply range against system power constraints.

Part Context

This MCU belongs to the C8051F85x/86x family of low-cost, highly integrated mixed-signal microcontrollers. These devices are System-on-Chip solutions that combine a fast microcontroller core with extensive on-chip peripherals. The family is designed to reduce board space and component count by integrating functions typically found on separate chips.

Replacement Considerations

Public confirmed substitute part numbers: EFM8BB51F8I-C-QFN20R

FAQ

What is the maximum system clock frequency for the C8051F850-C-IM?

The maximum system clock frequency is 25 MHz.

Does the C8051F850-C-IM support in-system programming?

Yes, the flash memory is in-system programmable in 512-byte sectors.

What is the operating temperature range for the -IM suffix?

The -IM suffix indicates an industrial temperature grade ranging from –40 °C to +125 °C.