CP2103-GMR

Product Overview

Category

CP2103-GMR belongs to the category of USB-to-UART bridge controllers.

Use

The CP2103-GMR is used as a bridge between USB and UART interfaces, enabling communication between a computer and a microcontroller or other UART-based devices.

Characteristics

• USB 2.0 full-speed compatible
• Supports baud rates ranging from 300 bps to 1 Mbps
• Integrated USB transceiver and UART interface
• Low power consumption
• Small form factor
• RoHS compliant

Package

The CP2103-GMR comes in a compact QFN-28 package.

Essence

The essence of CP2103-GMR lies in its ability to provide a seamless interface between USB and UART, facilitating easy communication between different devices.

Packaging/Quantity

The CP2103-GMR is typically packaged in reels containing 2500 units.

Specifications

• Supply Voltage: 3.0V - 5.25V
• Operating Temperature Range: -40°C to +85°C
• Data Rate: Up to 3 Mbps
• GPIO Pins: 4
• UART Interface: 1

Detailed Pin Configuration

1. VDD - Power supply voltage
2. GND - Ground
3. D+ - USB data positive
4. D- - USB data negative
5. TXD - UART transmit data
6. RXD - UART receive data
7. RTS - UART request to send
8. CTS - UART clear to send
9. GP0 - General-purpose I/O pin 0
10. GP1 - General-purpose I/O pin 1
11. GP2 - General-purpose I/O pin 2
12. GP3 - General-purpose I/O pin 3
13. SUSPEND - USB suspend indicator
14. RESET - Device reset input
15. RI - Ring indicator
16. DCD - Data carrier detect
17. DSR - Data set ready
18. DTR - Data terminal ready
19. RTS# - UART request to send (active low)
20. CTS# - UART clear to send (active low)
21. RXLED - Receive LED drive output
22. TXLED - Transmit LED drive output
23. SUSPEND# - USB suspend indicator (active low)
24. VBUS - USB bus voltage
25. XIN - Crystal oscillator input
26. XOUT - Crystal oscillator output
27. AVDD - Analog power supply voltage
28. AGND - Analog ground

Functional Features

• USB-to-UART bridge functionality
• Automatic baud rate detection
• Supports flow control (hardware and software)
• On-chip voltage regulator for 3.3V output
• Integrated USB termination resistors
• Configurable GPIO pins

Advantages and Disadvantages

Advantages

• Easy integration with existing systems
• Wide operating temperature range
• Low power consumption
• Small form factor
• Supports various baud rates

Disadvantages

• Limited number of GPIO pins
• Requires external crystal oscillator for accurate timing

Working Principles

The CP2103-GMR acts as a translator between the USB and UART protocols. It receives data from the USB interface, converts it into UART format, and transmits it to the connected device. Similarly, it receives UART data, converts it into USB format, and sends it to the computer.

Detailed Application Field Plans

The CP2103-GMR finds applications in various fields, including: 1. Embedded systems 2. Industrial automation 3. Internet of Things (IoT) devices 4. Consumer electronics 5. Robotics 6. Medical devices

Alternative Models

1. CP2102-GMR
2. CP2104-GMR
3. CP2105-GMR
4. CP2108-GMR

These alternative models offer similar functionality to the CP2103-GMR and can be considered as alternatives based on specific requirements.

In conclusion, the CP2103-GMR is a USB-to-UART bridge controller that enables seamless communication between USB and UART interfaces. With its compact size, low power consumption, and wide operating temperature range, it finds applications in various fields. While it has some limitations such as a limited number of GPIO pins, it offers advantages like easy integration and support for multiple baud rates.