Overview
The FT4232HQ-TRAY, produced by FTDI, Future Technology Devices International Ltd, is a highly integrated USB 2.0 Hi-Speed (480Mb/s) to quad UART IC. This fifth-generation USB device from FTDI is designed to handle a variety of industry-standard serial and parallel interfaces. It features four UARTs, with two of these UARTs capable of being configured as Multi-Protocol Synchronous Serial Engines (MPSSE) to emulate protocols such as JTAG, SPI, I2C, and bit-bang. The device is available in Pb-free (RoHS compliant) 64-pin LQFP/QFN and 56-pin VQFN packages, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Specification |
|---|---|
| USB Compatibility | USB 2.0 High Speed (480Mbits/Second) and Full Speed (12Mbits/Second) |
| UARTs | 4 UARTs with 2 MPSSE engines |
| UART Data Rate | Up to 12Mbaud (RS232 data rate limited by external level shifter) |
| Package Type | 64-pin LQFP/QFN, 56-pin VQFN |
| Supply Voltage | +3.3V single supply operating voltage range |
| Operating Temperature | -40°C to 85°C |
| RoHS Status | RoHS Compliant |
| Package Dimensions | 9mm x 9mm x 0.85mm (for 64-VFQFN) |
| Terminal Pitch | 0.5mm |
Key Features
- Single chip USB to quad serial ports with various configurations.
- Entire USB protocol handled on the chip; no USB-specific firmware programming required.
- Two MPSSE engines to simplify synchronous serial protocol design (JTAG, SPI, I2C, bit-bang).
- Independent baud rate generators.
- Support for RS232/RS422/RS485 UART transfer data rates.
- FTDI’s royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers.
- Optional traffic TX/RX indicators with LEDs and an external 74HC595 shift register.
- Adjustable receive buffer timeout.
- Support for USB suspend and resume conditions via PWREN#, SUSPEND#, and RI# pins.
- Integrated +1.8V LDO regulator for VCORE, integrated POR function, and on-chip clock multiplier PLL (12MHz – 480MHz).
- UART interface supports 7/8 bit data, 1/2 stop bits, and Odd/Even/Mark/Space/No Parity.
- Auto-transmit enable control for RS485 serial applications using TXDEN pin.
- Configurable I/O drive strength (4, 8, 12, or 16mA) and slew rate.
- Supports bus-powered, self-powered, and high-power bus-powered USB configurations.
Applications
- Single chip USB to four channels UART (RS232, RS422, or RS485) or Bit-Bang interfaces.
- Single chip USB to 2 JTAG channels plus 2 UARTs.
- Single chip USB to 1 JTAG channel plus 3 UARTs.
- Single chip USB to 1 SPI channel plus 3 UARTs.
- Single chip USB to 2 SPI channels plus 2 UARTs.
- Upgrading legacy peripheral designs to USB.
- Field upgradable USB products.
- Galvanic isolated products with USB interface.
- USB audio and low bandwidth video data transfer.
- USB smart card readers.
- USB instrumentation.
- USB industrial control.
- USB MP3 player interface.
- USB flash card reader/writers.
- Set top box PC – USB interface.
- USB digital camera interface.
- USB bar code readers.
Q & A
- What is the FT4232HQ-TRAY used for?
The FT4232HQ-TRAY is a USB 2.0 Hi-Speed to quad UART IC, used for converting USB signals to multiple serial or parallel interfaces such as UART, JTAG, SPI, and I2C.
- What are the key features of the FT4232HQ-TRAY?
Key features include four UARTs, two MPSSE engines, independent baud rate generators, support for RS232/RS422/RS485, and FTDI’s royalty-free VCP and D2XX drivers.
- What are the package options for the FT4232HQ-TRAY?
The device is available in 64-pin LQFP/QFN and 56-pin VQFN packages.
- What is the operating temperature range of the FT4232HQ-TRAY?
The operating temperature range is -40°C to 85°C.
- Is the FT4232HQ-TRAY RoHS compliant?
Yes, the FT4232HQ-TRAY is RoHS compliant.
- What is the maximum data transfer rate of the UARTs?
The maximum data transfer rate of the UARTs is up to 12Mbaud.
- Does the FT4232HQ-TRAY support USB suspend and resume conditions?
Yes, it supports USB suspend and resume conditions via PWREN#, SUSPEND#, and RI# pins.
- What are some common applications of the FT4232HQ-TRAY?
Common applications include upgrading legacy peripheral designs to USB, field upgradable USB products, galvanic isolated products, and various USB interfaces for industrial control, smart card readers, and more.
- Does the FT4232HQ-TRAY require specific firmware programming for USB?
No, the entire USB protocol is handled on the chip, eliminating the need for USB-specific firmware programming.
- Can the FT4232HQ-TRAY be configured for different serial protocols?
Yes, it can be configured for various serial protocols such as JTAG, SPI, I2C, and bit-bang using the MPSSE engines.
- What is the supply voltage range for the FT4232HQ-TRAY?
The supply voltage range is +3.3V single supply operating voltage.
