FT4232HQ-TRAY

Controllers Overview

The FT4232HQ-TRAY is a fifth-generation USB device from FTDI, functioning as a high-speed USB 2.0 (480Mb/s) to UART/MPSSE integrated circuit. It features four independent, configurable interfaces within a QFN-64 package. The chip supports both USB 2.0 High Speed and Full Speed modes. It includes two Multi-Protocol Synchronous Serial Engines (MPSSE) on channels A and B, allowing for flexible configuration of serial protocols such as JTAG, SPI, I2C, or Bit-Bang alongside standard UART ports. The device operates with a supply voltage range of 1.62V to 1.98V and functions within a temperature range of -40°C to +85°C.

Controllers Feature Summary

• Integrates four independent interface channels capable of simultaneous operation as UARTs or MPSSE engines.
• Includes two dedicated MPSSE engines on Channels A and B to simplify the design of synchronous serial protocols like JTAG, SPI, and I2C.
• Handles the complete USB protocol internally, eliminating the need for specific USB firmware programming on the host side.
• Supports comprehensive hardware flow control and modem interface signals compatible with FT232R/FT-X asynchronous serial standards.

Controllers Applications

• Industrial automation and process control systems requiring multiple serial connections.
• Computer peripherals and audio equipment utilizing USB-to-UART bridging.
• Sensor instrumentation and data acquisition devices needing JTAG or SPI connectivity.
• Automotive electronics applications meeting extended temperature requirements.

Controllers Procurement Notes

Verify the specific suffix 'TRAY' against official FTDI documentation to confirm packaging format, as this indicates tray packaging rather than reel or cut tape. Ensure the component meets the required automotive or industrial qualification standards if applicable to your design. Cross-reference the datasheet revision date to confirm compatibility with current driver software versions.

Controllers Selection Notes

Select the FT4232HQ-TRAY when four independent serial interfaces are required in a single USB connection. Choose this model over the FT2232H if more than two channels are needed. Consider the MPSSE capability for designs requiring mixed UART and synchronous serial communication. Verify that the 1.62V to 1.98V core voltage aligns with the system's power management architecture.

Controllers Part Context

This component belongs to the FT4232H series, representing FTDI's fifth generation of USB bridge controllers. It succeeds earlier generations by offering higher data rates and enhanced protocol support. The 'Q' suffix typically denotes the automotive-grade temperature rating (-40°C to +105°C), while the base part number defines the quad-channel functionality. It is distinct from the FT2232H, which provides only dual channels.

Controllers FAQ

Can all four channels operate simultaneously?

Yes, the FT4232HQ supports four independent channels that can operate concurrently, with Channels A and B optionally configured as MPSSE engines.

What is the maximum UART baud rate supported?

The device supports UART transmission data rates up to 12 Mbaud for RS232, RS422, and RS485 interfaces, subject to external level converter limitations.

Does the chip require custom firmware for USB communication?

No, the FT4232HQ handles the entire USB protocol on-chip. It utilizes FTDI's VCP or D2XX drivers, removing the need for custom USB firmware development.