FT4232HL USB Interface IC: Datasheet, Pinout, Applications

Product Overview

The FT4232HL is a quad high speed USB 2.0 (480Mb/s) to multipurpose UART/MPSSE IC in 64 pin LQFP package. This 5th generation of USB device features four UARTs. Two of these have an option to independently configure an MPSSE engine. This allows FT4232H to operate as two UART/bit-bang ports plus two MPSSE (Multi Protocol Synchronous Serial Engine) engines used to emulate JTAG,  SPI , I2C, bit-bang or other synchronous serial modes.

 

This blog will introduce FT4232HL systematically from its features, pinout to its specifications, applications, also including FT4232HL datasheet and so much more.

FT4232HL Features

• Entire USB protocol handled on the chip and no USB specific firmware programming required
• USB 2.0 high speed (480Mbits/s) and full speed (12Mbits/s) compatible
• Independent baud rate generators 
• RS232/RS422/RS485 UART transfer data rate up to 12Mbaud
• Adjustable receive buffer timeout
• 3V single supply operating voltage range
• USB bulk data transfer mode (512byte packets in high speed mode)
• UART interface supports 7/8 bit data, 1/2 stop bits and odd/even/mark/space/no parity
• Low operating and USB suspend current
• Ambient operating temperature range from -40°C to 85°C

 

FT4232HL Pinout

The following figure is the diagram of FT4232HL pinout.

 

FT4232HL Pinout

 

FT4232HL 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.
• 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
• Cellular and cordless phone USB data transfer cables and interfaces.
• Interfacing MCU /PLD / FPGA   based designs to USB
• PDA to USB 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

 

FT4232HL CAD Models

The following are FT4232HL Symbol, Footprint, and  3D Model  .

 

FT4232HL Symbol

 

FT4232HL Footprint

 

FT4232HL 3D Model

 

FT4232HL Block Diagram

The following figure shows the block diagram of FT4232HL.

 

FT4232HL Block Diagram

 

FT4232HL Configurations

The following figure illustrates the FT4232H in a typical USB bus powered design configuration. A USB bus powered device gets its power from the USB bus. In this application, the FT4232H requires that the VBUS (USB +5V) is regulated down to +3.3V (using an  LDO  ) to supply the VCCIO, VPLL, VPHY and VREGIN.

 

FT4232HL USB Bus Powered Configuration1

 

VREGIN is the +3.3V input to the on chip +1.8V regulator. The output of the on chip LDO regulator(+1.8V) drives the FT4232H core supply (VCORE). This requires a minimum of a 3.3uF filter capacitor. 

 

FT4232HL USB Bus Powered Configuration2

FT4232HL Package

The following diagram shows the FT4232HL package.

 

FT4232HL Package

 

Notes:

1. All dimensions are in mm.
2. The bottom side central solder pad must be connected to the ground of the system.

 

FT4232HL Specification

Product Attribute	Attribute Value
Manufacturer:	FTDI
Product Category:	USB Interface IC
Series:	FT4232H
Product:	USB Controllers
Type:	Bridge, USB to UART
Mounting Style:	SMD/SMT
Package / Case:	LQFP-64
Standard:	USB 2.0
Speed:	High Speed (HS)
Data Rate:	480 Mb/s
Supply Voltage - Min:	1.62 V
Supply Voltage - Max:	1.98 V
Operating Supply Current:	70 mA
Minimum Operating Temperature:	- 40 C
Maximum Operating Temperature:	+ 85 C
Brand:	FTDI
Moisture Sensitive:	Yes
Operating Supply Voltage:	1.8 V, 3.3 V
Product Type:	USB Interface IC

 

FT4232HL Manufacturer

FTDI Chip develops innovative silicon solutions that enhance interaction with today's technology. The company’s major objective is to bridge technologies in order to support engineers with highly sophisticated, feature-rich, robust and simple-to-use product platforms. FTDI Chip's long-established, continuously expanding USB product line boasts universally recognized products. The company's Embedded Video Engine (EVE) graphic controllers each pack display, audio and touch functionality onto a single chip allowing dramatic reductions in the development time and bill-of-materials costs involved in human machine interfaces (HMIs) implementation. FTDI Chip also provides families of highly differentiated, speed-optimized microcontrollers with augmented connectivity.

 

FT4232HL Datasheet

You can download FT4232HL datasheet from the link given below:

FT4232HL Datasheet

 

Using Warnings

Note: Please check their parameters and pin configuration before replacing them in your circuit.

 

FT4232HL FAQ

What is a quad high speed USB 2.0 (480Mb/s) to multipurpose UART/MPSSE IC in 64 pin?

FT4232HL.

 

How many UART/bit-bang ports does FT4232H operate as?

Two.

 

What is a protocol converter?

A Protocol Converter is a device used to convert standard or proprietary protocol of one device to the protocol suitable for the other device or tools to achieve the desired interoperability. The major protocol translation messages involve conversion of data messages, events, commands, and time synchronization.

 

How does a protocol converter work?

The protocols are software installed on routers that transfer commands from one system to another. A protocol converter works by utilizing an internal master protocol for communicating with the external devices. The data collected is then used for updating the converter's internal database.

 

Which network device is also known as a protocol converter?

Gateways are also called protocol converters and can operate at any network layer.