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C8051F921-GM

Flash memory, 25MHz

Inventory:6,196

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Overview of C8051F921-GM

The C8051F921-GM is a high-performance 8-bit microcontroller from Silicon Labs, featuring an integrated 8051 core, 32 kB of Flash memory, and 2 kB of RAM. It is designed for various embedded applications, offering versatile connectivity options and advanced peripherals for enhanced functionality.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • VDD: Positive Power Supply
  • GND: Ground
  • RESET: Reset Pin
  • P0.x: Port 0 I/O Lines
  • P1.x: Port 1 I/O Lines
  • P2.x: Port 2 I/O Lines
  • P3.x: Port 3 I/O Lines
  • RSTOUT: Reset Output
  • XTAL1: Crystal Input
  • XTAL2: Crystal Output

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the C8051F921-GM microcontroller for a visual representation.

Key Features

  • Integrated 8051 Core: The C8051F921-GM features a powerful 8051 core for efficient processing of embedded applications.
  • Flash Memory: With 32 kB of Flash memory, this microcontroller offers ample space for program storage and data logging.
  • RAM: 2 kB of RAM allows for temporary data storage and efficient program execution.
  • Connectivity Options: The C8051F921-GM supports various communication interfaces such as UART, SPI, and I2C for seamless connectivity with external devices.
  • Advanced Peripherals: Integrated ADC, DAC, timers, and GPIOs provide enhanced functionality for diverse application requirements.

Note: For detailed technical specifications, please refer to the C8051F921-GM datasheet.

Application

  • Embedded Systems: Ideal for embedded systems development in industrial automation, IoT, and consumer electronics.
  • Sensor Interface: Suitable for sensor interfacing and data acquisition applications requiring real-time processing.
  • Control Systems: Used in control systems for motor control, smart home devices, and automotive applications.

Functionality

The C8051F921-GM is a feature-rich microcontroller designed for demanding embedded applications. Its integrated peripherals and connectivity options make it a versatile choice for various projects.

Usage Guide

  • Power Supply: Connect VDD (Pin 1) to the positive power supply and GND (Pin 20) to ground.
  • Peripheral Connections: Configure the I/O lines (P0.x, P1.x, P2.x, P3.x) for interfacing with external peripherals.
  • Crystal Setup: Connect external crystals to XTAL1 and XTAL2 pins for accurate clock generation.

Frequently Asked Questions

Q: What is the clock speed of the C8051F921-GM?
A: The C8051F921-GM operates at a maximum clock speed of 25 MHz, providing high processing capability for embedded tasks.

Q: Can I reprogram the Flash memory of the C8051F921-GM?
A: Yes, the Flash memory of the C8051F921-GM is reprogrammable, allowing for firmware updates and flexibility in application development.

Equivalent

For similar functionalities, consider these alternatives to the C8051F921-GM:

  • C8051F930-GM: A higher-performance version of the C8051 series microcontrollers with expanded memory and advanced features.
  • C8051F340-GM: This microcontroller offers comparable functionalities to the C8051F921-GM with slight variations in memory and peripheral options.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Series C8051F9xx Package Tube
Product Status Obsolete Programmabe Not Verified
Core Processor 8051 Core Size 8-Bit
Speed 25MHz Connectivity SMBus (2-Wire/I2C), SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT Number of I/O 16
Program Memory Size 32KB (32K x 8) Program Memory Type FLASH
RAM Size 4.25K x 8 Voltage - Supply (Vcc/Vdd) 0.9V ~ 3.6V
Data Converters A/D 15x10b Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA) Mounting Type Surface Mount
Supplier Device Package 24-QFN (4x4) Package / Case 24-WFQFN Exposed Pad
Base Product Number C8051F921

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