C8051F921-GM - Silicon Labs

Manufacturer Part Number

C8051F921-GM

Manufacturer

Silicon Labs

Introduction

C8051F921-GM is a highly integrated 8-bit microcontroller from Silicon Labs' C8051F9xx series designed for low power embedded applications.

Product Features and Performance

8-Bit 8051-Compatible Microcontroller (MCU)

Maximum Speed of 25MHz

Integrated SMBus (2-Wire/I2C), SPI, UART/USART Connectivity

Built-in Brown-out Detect/Reset, Power-On Reset, Programmable Counter Array, Pulse Width Modulation, Temperature Sensor, Watchdog Timer

16 General Purpose I/O pins

32KB FLASH Memory

25KB RAM

Advanced Digital to Analog Converters: 15-channel, 10-bit resolution

Internal Oscillator for Clock Generation

Operating Temperature Range from -40°C to 85°C

Product Advantages

Low power consumption suitable for battery-powered applications

High integration reduces system component count and PCB space requirements

Robust in-system programmable flash memory supports firmware upgrades

Comprehensive set of peripherals for versatile control and interfacing

Small form factor 24-QFN (4x4) package

Key Technical Parameters

Core Processor: 8051

Core Size: 8-Bit

Speed: 25MHz

Program Memory Size: 32KB (32K x 8)

RAM Size: 4.25K x 8

Voltage Supply (Vcc/Vdd): 0.9V ~ 3.6V

Data Converters: A/D 15x10b

Oscillator Type: Internal

Mounting Type: Surface Mount

Package / Case: 24-WFQFN Exposed Pad

Quality and Safety Features

Integrated Brown-out Detect/Reset ensures reliable operation under fluctuating power conditions

Power-On Reset safeguards against improper power cycling

Temperature Sensor for thermal monitoring

Compatibility

Compatible with a range of Silicon Labs development tools for easy programming and debugging

Application Areas

Battery-operated devices

Sensing and monitoring systems

Industrial control

Consumer electronics

Portable medical devices

Product Lifecycle

Product Status: Obsolete

Replacement options or upgrades may be available for more recent Silicon Labs microcontroller selections

Several Key Reasons to Choose This Product

Supports a wide range of supply voltages, making it flexible for various applications

Its extensive feature set and high integration offer a reduced system design complexity

Strong support for connectivity and onboard peripherals enhances system capabilities

The product's operation under extreme temperatures ensures reliability in challenging environments

Silicon Labs provides comprehensive resources for development support, despite the product's obsolescence status