CG7890AA

Product Overview

Category: Electronic Component
Use: Integrated Circuit
Characteristics: High-performance, low-power consumption
Package: DIP-16 (Dual In-line Package)
Essence: Microcontroller
Packaging/Quantity: Tray, 100 units per tray

Specifications

• Operating Voltage: 3.3V - 5V
• Clock Speed: 16 MHz
• Flash Memory: 32 KB
• RAM: 2 KB
• Digital I/O Pins: 14
• Analog Input Pins: 6
• UART: 1
• SPI: 1
• I2C: 1
• PWM Channels: 6
• ADC Resolution: 10-bit
• Timers: 3
• Operating Temperature: -40°C to +85°C

Detailed Pin Configuration

The CG7890AA has a total of 16 pins arranged in a dual in-line package (DIP-16). The pin configuration is as follows:

1. VCC: Power supply voltage input
2. GND: Ground reference
3. RESET: Reset pin for restarting the microcontroller
4. XTAL1: Crystal oscillator input
5. XTAL2: Crystal oscillator output
6. RX: Serial data receive pin
7. TX: Serial data transmit pin
8. AREF: Analog reference voltage for ADC
9. A0-A5: Analog input pins
10. D0-D13: Digital I/O pins
11. GND: Ground reference
12. AVCC: Power supply voltage for analog circuitry
13. SDA: I2C data line
14. SCL: I2C clock line
15. OC1A: Timer/Counter1 Output Compare Match A
16. OC1B: Timer/Counter1 Output Compare Match B

Functional Features

• High-performance microcontroller with low-power consumption
• Suitable for a wide range of applications due to its versatile I/O capabilities
• Supports various communication protocols such as UART, SPI, and I2C
• Integrated analog-to-digital converter (ADC) for precise analog measurements
• Multiple timers and PWM channels for accurate timing and control

Advantages and Disadvantages

Advantages: - High-performance capabilities - Low-power consumption - Versatile I/O options - Integrated ADC for analog measurements - Accurate timing and control features

Disadvantages: - Limited number of digital I/O pins - Relatively small amount of flash memory and RAM

Working Principles

The CG7890AA microcontroller operates based on the principles of digital logic and integrated circuit technology. It utilizes a clock signal to synchronize its internal operations and executes instructions stored in its flash memory. The microcontroller interacts with external devices through its I/O pins, enabling it to send and receive data, control peripherals, and perform various tasks according to the programmed instructions.

Detailed Application Field Plans

The CG7890AA microcontroller finds applications in various fields, including but not limited to: - Home automation systems - Industrial control systems - Robotics - Internet of Things (IoT) devices - Sensor networks - Consumer electronics

Detailed and Complete Alternative Models

1. CG7890BB: Similar specifications with additional EEPROM memory
2. CG7890CC: Higher clock speed and increased number of I/O pins
3. CG7890DD: Enhanced power management features and extended temperature range
4. CG7890EE: Increased flash memory and RAM capacity for more complex applications

These alternative models offer similar functionality to the CG7890AA while providing additional features or improved performance in specific areas.

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