Overview
The FT4232HL-REEL, produced by FTDI (Future Technology Devices International Ltd), is a fifth-generation USB device that integrates a high-speed USB 2.0 interface with multiple serial and synchronous serial protocols. This IC is designed to provide a versatile solution for converting USB signals to various serial interfaces, including UART, JTAG, SPI, I2C, and bit-bang modes. The FT4232HL is particularly useful for applications requiring multiple serial channels and supports a wide range of configurations, making it an ideal choice for upgrading legacy peripheral designs to USB and for field-upgradable USB products.
Key Specifications
| Parameter | Value |
|---|---|
| Bridge Type | USB to UART, MPSSE |
| Supply Voltage Min | 1.62V |
| Supply Voltage Max | 1.98V |
| No. of Pins | 64 Pins |
| IC Case / Package | LQFP |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 85°C |
| USB Speed | High Speed (480Mbits/s), Full Speed (12Mbits/s) |
| UART Transfer Data Rate | Up to 12Mbaud (RS232 Data Rate limited by external level shifter) |
| UART Interface | Supports 7/8 bit data, 1/2 stop bits, and Odd/Even/Mark/Space/No Parity |
| MPSSE Engines | Two independent MPSSE engines for JTAG, SPI, I2C, bit-bang, or other synchronous serial modes |
Key Features
- Single chip USB to quad serial ports with various configurations (UART, JTAG, SPI, I2C, bit-bang)
- Entire USB protocol handled on the chip; no USB-specific firmware programming required
- Independent baud rate generators and 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’s royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers
- Optional traffic TX/RX indicators with LEDs and an external 74HC595 shift register
- 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
- +3.3V single supply operating voltage range and +5V tolerant I/O
Applications
- Communications & Networking
- Consumer Electronics
- Portable Devices
- Industrial Applications
- Upgrading Legacy Peripheral Designs to USB
- Field Upgradable USB Products
- Galvanic Isolated Products with USB Interface
- USB Audio and Low Bandwidth Video Data Transfer
- PDA to USB Data Transfer
Q & A
- What is the FT4232HL-REEL used for?
The FT4232HL-REEL is used for converting USB signals to various serial interfaces such as UART, JTAG, SPI, I2C, and bit-bang modes.
- What are the key features of the FT4232HL-REEL?
Key features include four UARTs, two independent MPSSE engines, USB 2.0 high-speed compatibility, and configurable I/O drive strength.
- What are the operating temperature ranges for the FT4232HL-REEL?
The operating temperature range is from -40°C to 85°C.
- Does the FT4232HL-REEL require USB-specific firmware programming?
No, the entire USB protocol is handled on the chip, eliminating the need for USB-specific firmware programming.
- What types of UART interfaces does the FT4232HL-REEL support?
The UART interface supports 7/8 bit data, 1/2 stop bits, and Odd/Even/Mark/Space/No Parity.
- Can the FT4232HL-REEL be used in industrial applications?
- What is the maximum data transfer rate for the UARTs on the FT4232HL-REEL?
The maximum data transfer rate for the UARTs is up to 12Mbaud.
- Does the FT4232HL-REEL support USB suspend and resume conditions?
- What are the package options available for the FT4232HL-REEL?
The FT4232HL-REEL is available in Partial (Cut Tape), Tray, and Reel packages.
- Is the FT4232HL-REEL RoHS compliant?
