C8051F990-C-GMR

Product Overview

• Category: Microcontroller
• Use: Embedded systems, Internet of Things (IoT) devices, industrial automation
• Characteristics: High-performance, low-power consumption, integrated peripherals
• Package: 48-pin QFN (Quad Flat No-Lead)
• Essence: A powerful microcontroller designed for various applications in embedded systems and IoT devices.
• Packaging/Quantity: Available in tape and reel packaging, quantity depends on the supplier.

Specifications

• Core: 8-bit 8051 microcontroller
• Clock Speed: Up to 100 MHz
• Flash Memory: 64 KB
• RAM: 4352 bytes
• Operating Voltage: 2.7V to 3.6V
• I/O Pins: 32
• Communication Interfaces: UART, SPI, I2C
• Analog-to-Digital Converter (ADC): 12-bit, 8 channels
• Timers/Counters: 4 x 16-bit timers/counters
• PWM Channels: 5
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The C8051F990-C-GMR microcontroller has a total of 48 pins. The pin configuration is as follows:

• Pins 1-8: Port 0 (P0.0 - P0.7)
• Pins 9-16: Port 1 (P1.0 - P1.7)
• Pins 17-24: Port 2 (P2.0 - P2.7)
• Pins 25-32: Port 3 (P3.0 - P3.7)
• Pins 33-40: Port 4 (P4.0 - P4.7)
• Pins 41-48: VDD, GND, XTAL1, XTAL2, RESET, VREF, AVSS, AVDD

Functional Features

• High-performance 8051 core with enhanced instructions and pipelining
• Low-power consumption modes for energy-efficient operation
• Integrated peripherals such as UART, SPI, I2C, ADC, and PWM
• Flexible clocking options with internal and external oscillators
• On-chip debug circuitry for easy development and debugging
• Extensive interrupt handling capabilities for real-time applications
• Built-in watchdog timer for system reliability
• Multiple power-saving modes to optimize power consumption

Advantages and Disadvantages

Advantages: - High-performance 8051 core allows for efficient execution of complex tasks - Low-power consumption extends battery life in portable devices - Integrated peripherals reduce the need for external components - Flexible clocking options accommodate various system requirements - On-chip debug circuitry simplifies software development and debugging

Disadvantages: - Limited processing power compared to 32-bit microcontrollers - Limited memory capacity may restrict the size of applications - 8-bit architecture may not be suitable for certain computationally intensive tasks

Working Principles

The C8051F990-C-GMR microcontroller operates based on the principles of the 8051 architecture. It executes instructions stored in its flash memory and interacts with external devices through its integrated peripherals. The microcontroller can communicate with other devices using UART, SPI, or I2C interfaces. It can also perform analog-to-digital conversions using its built-in ADC. The timers/counters and PWM channels enable precise timing and control of external events. The microcontroller's low-power modes help conserve energy when the system is idle.

Detailed Application Field Plans

The C8051F990-C-GMR microcontroller finds applications in various fields, including:

1. Embedded Systems: Used in consumer electronics, home automation, and automotive systems.
2. Internet of Things (IoT) Devices: Enables connectivity and control in smart home devices, wearables, and industrial IoT applications.
3. Industrial Automation: Used in control systems, motor drives, and sensor interfaces for efficient automation.

Detailed and Complete Alternative Models

1. C8051F991-C-GMR: Similar to C8051F990-C-GMR but with additional features such as more flash memory and higher pin count.
2. C8051F980-C-GMR: A lower-cost alternative with reduced flash memory and fewer peripherals.
3. C8051F995-C-GMR: Offers enhanced analog capabilities with more ADC channels and DAC support.

These alternative models provide options with varying specifications and features to suit different application requirements.

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