Overview
The TUSB3410VFG4, produced by Texas Instruments, is a USB to Serial Port Controller designed to bridge the gap between USB ports and legacy serial peripheral devices. This device integrates an 8052 microcontroller unit (MCU) with 16KB of RAM and 10KB of ROM, enabling it to manage USB and serial port operations efficiently. The TUSB3410VFG4 supports USB 2.0 full-speed specifications and includes features such as USB suspend, resume, and remote wake-up operations. It is configurable for both bus-powered and self-powered operation, making it versatile for various applications.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| USB Data Rate | Full Speed | 12 Mbps |
| Package Type | VQFN (32 pins), LQFP (32 pins) | - |
| Body Size (VQFN) | 5.00 mm × 5.00 mm | - |
| Body Size (LQFP) | 7.00 mm × 7.00 mm | - |
| Supply Voltage (VCC) | -0.5 to 3.6 V | - |
| Input Voltage (VI) | -0.5 to VCC + 0.5 V | - |
| Output Voltage (VO) | -0.5 to VCC + 0.5 V | - |
| Operating Temperature Range | -40°C to 85°C | - |
| Storage Temperature Range | -65°C to 70°C | - |
| Junction-to-Ambient Thermal Resistance (RθJA) | 32.1°C/W (VQFN), 70.5°C/W (LQFP) | - |
| Supply Current (Operating) | Up to 15 mA at 921.6 kbps | - |
| Supply Current (Suspended) | 200 µA | - |
Key Features
- Fully compliant with USB 2.0 full-speed specifications
- Supports USB suspend, resume, and remote wake-up operations
- Configurable to bus-powered and self-powered operation
- Supports a total of three input and three output (interrupt, bulk) endpoints
- Integrated 8052 microcontroller with 256 × 8 RAM, 10K × 8 ROM, and 16K × 8 RAM for code space
- Master I2C controller for EEPROM device access
- MCU operates at 24 MHz, providing 2-MIPS operation
- 128-ms watchdog timer
- Enhanced UART features including software and hardware flow control, automatic RS-485 bus transceiver control, and selectable IrDA mode
- Software-selectable baud rate from 50 BPS to 921.6 kbps
- Programmable serial-interface characteristics (5-, 6-, 7-, or 8-bit characters, even, odd, or no parity-bit generation and detection, 1-, 1.5-, or 2-stop bit generation)
- Modem control functions (CTS, RTS, DSR, RI, and DCD)
- Internal diagnostic capability and loopback control for communications link-fault isolation
Applications
- Modems
- Peripherals: Printers, handheld devices, etc.
- Medical meters
- DSP and µC interface
The TUSB3410VFG4 is versatile and can be used in various applications where bridging between USB and legacy serial ports is necessary.
Q & A
- What is the primary function of the TUSB3410VFG4?
The primary function of the TUSB3410VFG4 is to provide a bridge between a USB port and an enhanced UART serial port.
- What USB specifications does the TUSB3410VFG4 support?
The TUSB3410VFG4 is fully compliant with USB 2.0 full-speed specifications.
- What are the power configuration options for the TUSB3410VFG4?
The device can be configured for both bus-powered and self-powered operation.
- What is the maximum baud rate supported by the TUSB3410VFG4?
The device supports baud rates up to 921.6 kbps.
- Does the TUSB3410VFG4 support IrDA mode?
Yes, the device supports selectable IrDA mode for up to 115.2 kbps transfer.
- What types of endpoints does the TUSB3410VFG4 support?
The device supports up to three input and three output (interrupt, bulk) endpoints.
- What is the role of the integrated 8052 microcontroller in the TUSB3410VFG4?
The integrated 8052 microcontroller manages USB command decoding, UART setup, and error reporting, and operates at 24 MHz providing 2-MIPS operation.
- What are some of the enhanced UART features of the TUSB3410VFG4?
The device includes features such as software and hardware flow control, automatic RS-485 bus transceiver control, and modem control functions.
- Can the TUSB3410VFG4 be used in safety-critical applications?
No, the device is not recommended for use in safety-critical applications as per the datasheet's important notice section.
- What is the typical supply current during suspended mode?
The supply current during suspended mode is 200 µA.
- What is the junction-to-ambient thermal resistance for the VQFN package?
The junction-to-ambient thermal resistance for the VQFN package is 32.1°C/W.
