MC34903CS3EK

Product Overview

• Category: Integrated Circuit
• Use: Control and Monitoring
• Characteristics: High performance, low power consumption
• Package: Small outline integrated circuit (SOIC)
• Essence: Microcontroller with built-in peripherals
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Operating Voltage: 2.7V to 5.5V
• Operating Temperature: -40°C to +85°C
• Clock Speed: Up to 16 MHz
• Flash Memory: 32 KB
• RAM: 2 KB
• I/O Pins: 20
• Communication Interfaces: SPI, I2C, UART
• Timers/Counters: 4
• Analog-to-Digital Converter (ADC): 10-bit, 8 channels
• PWM Channels: 6
• Operating Current: 1.5 mA (typical)

Detailed Pin Configuration

The MC34903CS3EK has a total of 20 pins, which are assigned for various functions. The pin configuration is as follows:

1. VDD - Power supply voltage
2. GND - Ground
3. RESET - Reset input
4. XTAL1 - Crystal oscillator input
5. XTAL2 - Crystal oscillator output
6. ADC0 - Analog-to-digital converter input 0
7. ADC1 - Analog-to-digital converter input 1
8. ADC2 - Analog-to-digital converter input 2
9. ADC3 - Analog-to-digital converter input 3
10. ADC4 - Analog-to-digital converter input 4
11. ADC5 - Analog-to-digital converter input 5
12. ADC6 - Analog-to-digital converter input 6
13. ADC7 - Analog-to-digital converter input 7
14. VREF - Reference voltage for ADC
15. SDA - I2C data line
16. SCL - I2C clock line
17. MOSI - SPI master output, slave input
18. MISO - SPI master input, slave output
19. SCK - SPI clock
20. SS - SPI slave select

Functional Features

• High-performance microcontroller with integrated peripherals
• Low power consumption for energy-efficient applications
• Wide operating voltage range allows flexibility in power supply options
• Multiple communication interfaces (SPI, I2C, UART) for versatile connectivity
• On-chip analog-to-digital converter (ADC) for precise analog signal measurements
• PWM channels for generating accurate pulse-width modulation signals
• Timers/counters for various timing and counting applications
• Small package size (SOIC) enables space-saving designs

Advantages and Disadvantages

Advantages

• High performance and low power consumption make it suitable for battery-powered devices.
• Integrated peripherals reduce the need for external components, simplifying circuit design.
• Multiple communication interfaces provide flexibility in connecting to other devices.
• On-chip ADC enables accurate measurement of analog signals.
• Small package size allows for compact and space-efficient designs.

Disadvantages

• Limited flash memory and RAM may restrict the complexity of applications.
• The number of I/O pins may be insufficient for certain projects requiring extensive interfacing.
• Operating temperature range may not be suitable for extreme environments.

Working Principles

The MC34903CS3EK operates as a microcontroller, executing instructions stored in its flash memory. It integrates various peripherals, such as timers, counters, communication interfaces, and an ADC, which can be utilized by the user to implement desired functionalities. The microcontroller communicates with external devices through the available interfaces, processes data, and controls connected components based on programmed instructions.

Detailed Application Field Plans

The MC34903CS3EK finds applications in various fields, including but not limited to:

1. Home automation systems
2. Industrial control systems
3. Internet of Things (IoT) devices
4. Consumer electronics
5. Automotive electronics
6. Medical devices
7. Robotics

Detailed and Complete Alternative Models

1. MC34904CS3EK
2. MC34905CS3EK
3. MC34906CS3EK
4. MC34907CS3EK
5. MC34908CS3EK

These alternative models offer similar functionalities and characteristics, providing options for different project requirements.

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