CY7C65221-24LTXIT

Product Overview

Category

The CY7C65221-24LTXIT belongs to the category of integrated circuits (ICs) and specifically falls under the family of USB-to-UART bridge controllers.

Use

This product is primarily used for bridging the gap between Universal Serial Bus (USB) and UART interfaces. It enables seamless communication between a computer or other USB-enabled device and a UART-based peripheral device.

Characteristics

• USB-to-UART bridge controller
• Supports full-speed USB 2.0 interface
• Provides up to two UART channels
• Low power consumption
• Small form factor
• RoHS compliant

Package

The CY7C65221-24LTXIT is available in a small-outline, 32-pin QFN (Quad Flat No-leads) package. This package offers a compact size and ease of integration into various electronic designs.

Essence

The essence of the CY7C65221-24LTXIT lies in its ability to facilitate bidirectional data transfer between USB and UART interfaces. It acts as an intermediary, converting USB signals to UART signals and vice versa.

Packaging/Quantity

The CY7C65221-24LTXIT is typically sold in reels or trays, with each reel containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• USB Compliance: USB 2.0 Full Speed (12 Mbps)
• UART Channels: 2
• Supply Voltage: 3.3V
• Operating Temperature Range: -40°C to +85°C
• Data Rate: Up to 3 Mbps
• GPIO Pins: 8
• Integrated Clock: Yes
• Power Consumption: Low power mode available

Detailed Pin Configuration

The CY7C65221-24LTXIT features a 32-pin QFN package with the following pin configuration:

1. VIO
2. GND
3. GPIO0
4. GPIO1
5. GPIO2
6. GPIO3
7. GPIO4
8. GPIO5
9. GPIO6
10. GPIO7
11. UART0_RX
12. UART0_TX
13. UART0_CTS
14. UART0_RTS
15. UART1_RX
16. UART1_TX
17. UART1_CTS
18. UART1_RTS
19. USB_DP
20. USB_DM
21. VBUS
22. SLEEP#
23. RESET#
24. SUSPEND#
25. WAKEUP#
26. XIN
27. XOUT
28. AVDD
29. AGND
30. DVDD
31. DGND
32. NC

Functional Features

• USB-to-UART bridging: Enables seamless communication between USB and UART interfaces.
• Multiple UART channels: Provides up to two independent UART channels for simultaneous data transfer.
• GPIO pins: Offers eight general-purpose input/output pins for additional functionality.
• Integrated clock: Includes an integrated oscillator, eliminating the need for an external clock source.
• Low power consumption: Designed to operate in low-power modes, conserving energy.

Advantages and Disadvantages

Advantages

• Simplifies USB-to-UART interfacing, reducing development time and effort.
• Compact form factor allows for easy integration into space-constrained designs.
• Supports high-speed data transfer rates of up to 3 Mbps.
• Low power consumption extends battery life in portable applications.
• RoHS compliant, ensuring environmental friendliness.

Disadvantages

• Limited number of UART channels may not suffice for complex systems requiring multiple UART connections.
• Lack of advanced features such as hardware flow control or additional protocol support.

Working Principles

The CY7C65221-24LTXIT operates by receiving USB data packets and converting them into UART-compatible signals. It then transmits these signals to the connected UART device. Similarly, it receives UART signals from the peripheral device, converts them into USB data packets, and sends them to the USB host. This bidirectional conversion enables seamless communication between USB and UART interfaces.

Detailed Application Field Plans

The CY7C65221-24LTXIT finds applications in various fields, including but not limited to:

1. Embedded Systems: Used in embedded systems that require USB connectivity for communication with UART-based devices.
2. Industrial Automation: Enables USB-to-UART bridging in industrial automation systems, facilitating control and monitoring of UART-enabled equipment.
3. Internet of Things (IoT): Integrates USB-to-UART functionality in IoT devices, allowing them to communicate with UART peripherals.
4. Consumer Electronics: Incorporates USB-to-UART bridging in consumer electronic devices, such as smart home appliances or wearable gadgets.

Detailed and Complete Alternative Models

1. FT232RQ: USB-to-UART