FT4232HL FTDI High Speed USB-to-UART IC, LQFP

The FT4232H is FTDI’s 5th generation of USB devices.  The FT4232H is a USB 2.0 Hi-Speed (480Mb/s) to UART IC.  It has the capability of being configured in a variety of industry standard serial or parallel interfaces.

Building on the innovative features of the FT2232, the FT4232H has two multi-protocol synchronous serial engines (MPSSEs) which allow for communication using JTAG, I2C and SPI on two channels simultaneously.
 

Features

• Single chip USB to quad serial ports with a variety of configurations.
• Entire USB protocol handled on the chip. No USB specific firmware programming required.
• USB 2.0 High Speed (480Mbits/Second) and Full Speed (12Mbits/Second) compatible.
• Two Multi-Protocol Synchronous Serial Engine (MPSSE) on channel A and channel B, to simplify synchronous serial protocol (USB to JTAG, I2C, SPI or bit-bang) design.
• Independent Baud rate generators.
• RS232/RS422/RS485 UART Transfer Data Rate up to 12Mbaud. (RS232 Data Rate limited by external level shifter).
• FTDI’s royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers eliminate the requirement for USB driver development in most cases.
• Optional traffic TX/RX indicators can be added 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.
• Highly integrated design includes +1.8V LDO regulator for VCORE, integrated POR function and on chip clock multiplier PLL (12MHz – 480MHz).
• FTDI FT232B style, asynchronous serial UART interface option with full hardware handshaking and modem interface signals.
• Fully assisted hardware or X-On / X-Off software handshaking.
• 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.
• Operational configuration mode and USB Description strings configurable in external EEPROM over the USB interface.
• Low operating and USB suspend current.
• 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.
• UHCI/OHCI/EHCI host controller compatible.
• USB Bulk data transfer mode (512 byte packets in Hi-Speed mode).
• Dedicated Windows DLLs available for USB to JTAG, USB to SPI, and USB to I2C applications.
• +1.8V (chip core) and +3.3V I/O interfacing (+5V Tolerant).
• Extended -40ºC to 85ºC industrial operating temperature range.
• Compact 64-LD Lead Free LQFP or LQFN package.
• +3.3V single supply operating voltage range.
   

Application Areas

• 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.
• Single chip USB to 2 Bit-Bang channels plus 2 UARTs.
• Single chip USB to 1 SPI channel, plus 1 JTAG channel plus 2 UARTs.
• Single chip USB to 2 I2C channels plus 2 UARTs.
• Numerous combinations of 4 channels
• Upgrading Legacy Peripheral Designs to USB.
• Field Upgradable USB Products.
• Galvanic Isolated Products with USB Interface.
• Cellular and cordless phone USB data transfer cables and interfaces.
• Interfacing MCU / PLD / FPGA based designs to USB.
• USB Audio and Low Bandwidth Video data transfer.
• PDA to USB data transfer.
• USB Smart Card Readers.
• 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.

Product Information

• FT4232H Datasheet

• VCP Drivers

• D2XX Drivers

• MPSSE Code Examples
• MPSSE JTAG DLL
• MPSSE I2C DLL
• MPSSE SPI DLL