Manufacturer Part Number
C8051F921-G-GMR
Manufacturer
Silicon Labs
Introduction
C8051F921-G-GMR is a highly integrated, low power 8-bit microcontroller featuring an efficient 8051 core and versatile connectivity options, tailored for embedded applications.
Product Features and Performance
8051 Core at 25MHz speed
16 I/O pins
32KB FLASH memory
25K x 8 RAM
SMBus, SPI, UART/USART for connectivity
Internal Oscillator
Integrated brown-out detect/reset, POR, PWM, temperature sensor, and watchdog timer (WDT)
A/D Converters: 15 channels, 10 bits resolution
Product Advantages
Low power consumption with a supply voltage from 0.9V to 3.6V
Small 24-QFN package for space-constrained applications
Wide operating temperature range suitable for industrial environments
Key Technical Parameters
Core Processor: 8051
Core Size: 8-Bit
Speed: 25MHz
Program Memory Size: 32KB
RAM Size: 4.25K x 8
Voltage Supply: 0.9V ~ 3.6V
Data Converters: A/D 15x10b
Operating Temperature: -40°C ~ 85°C
Quality and Safety Features
Internal temperature sensor for thermal monitoring
Brown-out detect/reset to prevent low voltage operation
Watchdog timer for system stability
Compatibility
Compatible with other C8051F9xx Series microcontrollers
Supports industry-standard communication protocols
Application Areas
Industrial control systems
Battery-powered devices
Environmental monitoring instruments
Consumer electronics
Product Lifecycle
Status: Active
Not reported as nearing discontinuation
Replacements or upgrades should be sought within Silicon Labs’ current or future microcontroller offerings
Several Key Reasons to Choose This Product
Efficient 8-bit 8051 core optimized for low-power applications
Comprehensive peripheral set enabling a wide range of functions
High level of integration to reduce external component count
Robust operation in extended temperature ranges
Supported by Silicon Labs' development tools for easier prototyping and development