C8051F851-C-IMR

$1.28

Description：IC MCU 8BIT 4KB FLASH 20QFN
Series：C8051F85x
Mfr：Silicon Labs
Package：Tape & Reel (TR)
Core Processor：8051

SKU:4abcb9f74848 Category: Microcontrollers Brand: Silicon Labs

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Product introduction

Product Detailed Parameters

Description：IC MCU 8BIT 4KB FLASH 20QFN
Series：C8051F85x
Mfr：Silicon Labs
Package：Tape & Reel (TR)
Core Processor：8051
Core Size：8-Bit
Speed：25MHz
Connectivity：I2C, SPI, UART/USART
Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O：15
Program Memory Size：4KB (4K x 8)
Program Memory Type：FLASH
EEPROM Size：-
RAM Size：512 x 8
Voltage - Supply (Vcc/Vdd)：2.2V ~ 3.6V
Data Converters：A/D 15x12b
Oscillator Type：Internal
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Supplier Device Package：-
Package / Case：20-WFQFN Exposed Pad

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C8051F851-C-IMR

Overview

The C8051F851-C-IMR 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. It operates on a supply voltage of 2.2 V to 3.6 V within an industrial temperature range of -40°C to +125°C.

Feature Summary

High-speed CIP-51 core delivering up to 25 MIPS throughput
Integrated 12-bit ADC with up to 16 input channels
On-chip debug circuitry for non-intrusive system debugging
Multiple communication interfaces including UART, I2C, and SPI

Applications

Industrial control systems requiring robust MCU performance
Battery-powered devices utilizing low-power oscillators
Sensor interface applications leveraging integrated ADC and comparators
Automotive electronics meeting AEC-Q100 qualification standards

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and temperature grade. Check current lifecycle status as this series may be designated Not Recommended for New Designs. Ensure compatibility with existing design tools and programming interfaces before procurement.

Selection Notes

Select this model when an 8-bit architecture with integrated analog peripherals is sufficient. Consider the 25 MHz clock speed for processing requirements. Evaluate the 8 kB Flash and 512 Bytes RAM against application memory needs. Verify that the 2.2 V to 3.6 V supply range aligns with the system power design. Confirm package availability matches the PCB layout constraints.

Part Context

This component belongs to the C8051F85x/86x family of low-cost 8-bit MCUs. It shares architectural similarities with other members like the C8051F850 and C8051F853, differing primarily in memory size and pin count. The family emphasizes cost-effective solutions with integrated analog capabilities and standard 8051 compatibility.