C8051F921-G-GMR

Product Overview

Category

The C8051F921-G-GMR belongs to the category of microcontrollers.

Use

This microcontroller is designed for various embedded applications, including industrial automation, consumer electronics, and automotive systems.

Characteristics

• High-performance 8-bit microcontroller
• Low power consumption
• Integrated peripherals for enhanced functionality
• Flexible I/O options
• On-chip memory for program storage and data handling

Package

The C8051F921-G-GMR is available in a compact and industry-standard package, making it suitable for space-constrained designs.

Essence

The essence of the C8051F921-G-GMR lies in its ability to provide a cost-effective solution for embedded system development, offering a balance between performance and power efficiency.

Packaging/Quantity

This microcontroller is typically packaged in trays or reels, with quantities varying based on customer requirements.

Specifications

• CPU: 8051 core running at up to 25 MHz
• Flash Memory: 64 KB
• RAM: 4352 bytes
• ADC: 10-bit, 8-channel
• Timers: Multiple timers/counters
• Communication Interfaces: UART, SPI, I2C
• Operating Voltage: 2.7V to 3.6V
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The C8051F921-G-GMR has a total of 32 pins, which are assigned to various functions such as GPIO, communication interfaces, and power supply. The pin configuration is as follows:

(Pin Number) (Pin Name) (Function) 1 P0.0 GPIO 2 P0.1 GPIO 3 P0.2 GPIO 4 P0.3 GPIO 5 P0.4 GPIO 6 P0.5 GPIO 7 P0.6 GPIO 8 P0.7 GPIO 9 P1.0 GPIO 10 P1.1 GPIO 11 P1.2 GPIO 12 P1.3 GPIO 13 P1.4 GPIO 14 P1.5 GPIO 15 P1.6 GPIO 16 P1.7 GPIO 17 P2.0 GPIO 18 P2.1 GPIO 19 P2.2 GPIO 20 P2.3 GPIO 21 P2.4 GPIO 22 P2.5 GPIO 23 P2.6 GPIO 24 P2.7 GPIO 25 RST Reset 26 VDD Power Supply 27 GND Ground 28 XTAL1 Crystal Oscillator Input 29 XTAL2 Crystal Oscillator Output 30 PSEN Program Store Enable 31 ALE Address Latch Enable 32 EA/VPP External Access/Programming Voltage

Functional Features

• High-speed 8051 core for efficient processing
• Integrated ADC for analog signal acquisition
• Multiple communication interfaces for data exchange
• Timers/counters for precise timing and event handling
• Flexible I/O options for interfacing with external devices
• Low power modes for energy-efficient operation
• On-chip debugging support for easy development and troubleshooting

Advantages and Disadvantages

Advantages

• Cost-effective solution for embedded system development
• Wide range of integrated peripherals reduces external component count
• Efficient processing capabilities for demanding applications
• Low power consumption extends battery life in portable devices
• On-chip debugging simplifies development and debugging process

Disadvantages

• Limited processing power compared to 16-bit or 32-bit microcontrollers
• Smaller memory capacity may restrict the complexity of applications
• Restricted temperature range compared to some industrial-grade microcontrollers

Working Principles

The C8051F921-G-GMR operates based on the 8051 architecture, which is a widely used 8-bit microcontroller design. It executes instructions stored in its flash memory and interacts with external devices through its I/O pins and communication interfaces. The integrated peripherals provide additional functionality, such as analog-to-digital conversion and timing control. The microcontroller can be programmed using various development tools and software.

Detailed Application Field Plans

The C8051F921-G-GMR finds applications in various fields, including:

1. Industrial Automation: Control systems, motor control, and monitoring devices.
2. Consumer Electronics: Home appliances, audio/video equipment, and smart devices.
3. Automotive Systems: Engine control units, dashboard displays, and infotainment systems.
4. Internet of Things (IoT): Sensor nodes, data acquisition devices, and edge computing.

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