C8051F921-GMR - Silicon Labs

Manufacturer Part Number

C8051F921-GMR

Manufacturer

Silicon Labs

Introduction

The C8051F921-GMR is an 8-bit microcontroller based on the 8051 core, designed for high-performance, low-power embedded applications.

Product Features and Performance

Core Processor: 8051, 8-Bit

Speed: 25MHz

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

Peripherals: Brown-out Detect/Reset, Power-on Reset (POR), Pulse Width Modulation (PWM), Temperature Sensor, Watchdog Timer (WDT)

Number of I/O: 16

Program Memory: 32KB FLASH

RAM Size: 4.25K x 8

Data Converters: Analog to Digital Converter (A/D) 15x10b

Oscillator: Internal

Operating Temperature: -40°C to 85°C

Product Advantages

Low-power consumption

Robust connectivity options

Integrated data converters and temperature sensor

Suitable for harsh temperature environments

Key Technical Parameters

Core Size: 8-Bit

Program Memory Size: 32KB

RAM Size: 4.25KB

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

Data Converters: 15x10b A/D

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

Quality and Safety Features

Integrated brown-out detect/reset

Power-on Reset (POR)

Watchdog Timer for system stability

Compatibility

Compatible with 24-WFQFN exposed pad surface mount packaging

Uses standard SMBus, SPI, and UART/USART interfaces for communication

Application Areas

Industrial controls

Consumer electronics

Automotive systems

Embedded systems

Product Lifecycle

Status: Obsolete

No specified replacements or upgrades. Potential need to look for newer models or alternatives.

Several Key Reasons to Choose This Product

High integration with essential peripherals and data converters reduces additional component needs.

Extended operating temperature range makes it ideal for rugged environmental conditions.

Low voltage operations from 0.9V to 3.6V maximize battery life in portable applications.

Fast 25MHz speed supports responsive and efficient processing.