Overview
The FT4232HL, produced by FTDI (Future Technology Devices International Ltd), is a fifth-generation USB 2.0 Hi-Speed to UART IC. This integrated circuit is designed to provide a single-chip solution for converting USB signals to multiple serial or parallel interfaces. The FT4232HL supports various configurations, including UART, JTAG, SPI, I2C, and Bit-Bang modes, making it highly versatile for a wide range of applications.
Key Specifications
| Specification | Detail |
|---|---|
| USB Compatibility | USB 2.0 Hi-Speed (480Mbits/Second) and Full Speed (12Mbits/Second) |
| UART Channels | 4 UARTs with independent baud rate generators |
| MPSSE Engines | Two Multi-Protocol Synchronous Serial Engines (MPSSE) for JTAG, SPI, I2C, Bit-Bang |
| UART Data Rate | Up to 12Mbaud (RS232 data rate limited by external level shifter) |
| Package Options | Pb-free (RoHS compliant) 64-pin LQFP/QFN and 56-pin VQFN |
| Operating Voltage | +3.3V single supply operating voltage range |
| Operating Temperature | -40°C to 85°C industrial operating temperature range |
| Power Management | Support for USB suspend and resume conditions via PWREN#, SUSPEND#, and RI# pins |
| Integrated Components | +1.8V LDO regulator for VCORE, integrated POR function, and on-chip clock multiplier PLL (12MHz – 480MHz) |
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.
- Optional traffic TX/RX indicators with LEDs and an external 74HC595 shift register.
- Adjustable receive buffer timeout.
- FTDI’s royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers.
- FT232B style asynchronous serial UART interface with full hardware handshaking and modem interface signals.
- 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.
- 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, instrumentation, industrial control, MP3 player interfaces, and more.
Q & A
- What is the FT4232HL? The FT4232HL is a USB 2.0 Hi-Speed to UART IC produced by FTDI, providing a single-chip solution for converting USB signals to multiple serial or parallel interfaces.
- What are the key features of the FT4232HL? Key features include four UART channels, two MPSSE engines, USB 2.0 Hi-Speed compatibility, and support for various synchronous serial protocols.
- What are the package options for the FT4232HL? The FT4232HL is available in Pb-free (RoHS compliant) 64-pin LQFP/QFN and 56-pin VQFN packages.
- What is the operating voltage range of the FT4232HL? The FT4232HL operates on a +3.3V single supply voltage range.
- What are the typical applications of the FT4232HL? Typical applications include upgrading legacy peripheral designs to USB, field upgradable USB products, galvanic isolated products, and various USB-based interfaces for smart cards, instrumentation, and industrial control.
- Does the FT4232HL support USB suspend and resume conditions? Yes, it supports USB suspend and resume conditions via PWREN#, SUSPEND#, and RI# pins.
- What is the maximum data rate of the UART channels in the FT4232HL? The UART channels can operate up to 12Mbaud, with the RS232 data rate limited by the external level shifter.
- Does the FT4232HL require USB-specific firmware programming? No, the entire USB protocol is handled on the chip, eliminating the need for USB-specific firmware programming.
- What drivers are available for the FT4232HL? FTDI’s royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers are available.
- What is the operating temperature range of the FT4232HL? The FT4232HL has an industrial operating temperature range of -40°C to 85°C.
