Overview
The FTDI FT4232HQ-REEL is a highly integrated USB to quad serial ports IC developed by Future Technology Devices International Ltd. (FTDI). This single-chip solution handles the entire USB protocol on-chip, eliminating the need for USB-specific firmware programming. It is compatible with USB 2.0 high-speed (480Mbps) and full-speed (12Mbps) modes. The FT4232HQ-REEL is part of FTDI’s 5th generation of USB devices and is available in Pb-free (RoHS compliant) 64-pin QFN packages.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | FTDI, Future Technology Devices International Ltd. |
| Part Number | FT4232HQ-REEL |
| Package Type | 64-pin QFN |
| Operating Voltage | +1.8V (chip core), +3.3V I/O (+5V tolerant) |
| Operating Temperature | -40°C to 85°C |
| USB Compatibility | USB 2.0 High Speed (480Mbps) and Full Speed (12Mbps) |
| UART Data Rate | Up to 12Mbaud (RS232 Data Rate Limited) |
| MPSSE Engines | Two multi-protocol synchronous serial engines (MPSSE) on channel A and channel B |
| Baud Rate Generators | Independent baud rate generators |
| UART Interface | Supports 7/8-bit data, 1/2 stop bits, and Odd/Even/Mark/Space/No Parity |
| Power Configuration | Bus powered, self powered, and high-power bus powered USB configurations |
Key Features
- Single chip USB to quad serial ports with various configurations.
- Entire USB protocol handled on-chip, no USB-specific firmware programming required.
- Two multi-protocol synchronous serial engines (MPSSE) for emulating JTAG, SPI, I²C, Bit-bang, or other synchronous serial modes.
- Independent baud rate generators and adjustable receive buffer timeout.
- Support for USB suspend and resume conditions via PWREN#, SUSPEND#, and RI# pins.
- 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.
- Auto-transmit enable control for RS485 serial applications using TXDEN pin.
- Configurable I/O drive strength (4, 8, 12, or 16mA) and slew rate.
- UHCI/OHCI/EHCI host controller compatible and supports USB bulk data transfer mode (512-byte packets in high-speed mode).
- Dedicated Windows DLLs available for USB to JTAG, USB to SPI, and USB to I²C applications.
Applications
- Computers & Computer Peripherals
- Audio
- Sensing & Instrumentation
- Industrial, Automation & Process Control
- Single chip USB to four channels UART (RS232, RS422, or RS485) or Bit-Bang interfaces
- 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-REEL?
The FT4232HQ-REEL is a single-chip USB to quad serial ports IC developed by FTDI, handling the entire USB protocol on-chip.
- What are the key features of the FT4232HQ-REEL?
Key features include two MPSSE engines, independent baud rate generators, support for RS232/RS422/RS485 UART, and configurable I/O drive strength.
- What are the operating voltage and temperature ranges of the FT4232HQ-REEL?
The operating voltage is +1.8V (chip core) and +3.3V I/O (+5V tolerant), with an operating temperature range of -40°C to 85°C.
- Is the FT4232HQ-REEL compatible with different USB speeds?
Yes, it is compatible with USB 2.0 high-speed (480Mbps) and full-speed (12Mbps) modes.
- What types of UART interfaces does the FT4232HQ-REEL support?
The UART interface supports 7/8-bit data, 1/2 stop bits, and Odd/Even/Mark/Space/No Parity.
- Can the FT4232HQ-REEL be used in various power configurations?
Yes, it supports bus powered, self powered, and high-power bus powered USB configurations.
- What are some common applications of the FT4232HQ-REEL?
Common applications include computers and peripherals, audio, sensing and instrumentation, industrial automation, and more.
- How can the MPSSE engines be used?
The MPSSE engines can be used to emulate JTAG, SPI, I²C, Bit-bang, or other synchronous serial modes.
- Does the FT4232HQ-REEL support traffic indicators?
Yes, optional traffic TX/RX indicators can be added with LEDs and an external 74HC595 shift register.
- What drivers are available for the FT4232HQ-REEL?
FTDI’s royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers are available.
- Are there dedicated DLLs for specific applications?
Yes, dedicated Windows DLLs are available for USB to JTAG, USB to SPI, and USB to I²C applications.
