FT232RL IC USB FS SERIAL UART 28-SSOP[Video]: Datasheet, Pinout, and Application

The FT232R is a USB to serial UART interface device which simplifies USB to serial designs and reduces external component count by fully integrating an external EEPROM, USB termination resistors, and an integrated clock circuit that requires no external crystal, into the device. It has been designed to operate efficiently with a USB host controller by using as little as possible of the total USB bandwidth available.

• Single-chip USB  to asynchronous serial data transfer interface.

• The entire USB  protocol is handled on the chip. No USB  -specific firmware programming is required.

• Fully integrated 1024 bit EEPROM storing device descriptors and CBUS   I/O  configuration.

• Fully integrated USB  termination resistors.

• Fully integrated clock generation with no external crystal required plus optional clock output selection enabling a glue-less interface to external MCU  or FPGA.

• True 5V/3.3V/2.8V/1.8V CMOS drive output and TTL  input.

• Configurable I/O  pin output drive strength.

• Integrated power-on-reset circuit.

• Fully integrated AVCC  supply filtering - no external filtering required.

• UART signal inversion option.

• +3.3V (using external oscillator) to +5.25V (internal oscillator) Single Supply Operation.

• Low operating and USB  suspend current.

• Low USB  bandwidth consumption.

• UHCI/OHCI/EHCI host controller is compatible.

• USB 2.0 Full Speed compatible.

• -40°C to 85°C extended operating temperature range.

• Available in compact Pb-free 28 Pin SSOP  and

• QFN-32 packages (both RoHS compliant).

FT232RL Pinout

FT232RL Block Diagram

FT232RL Symbol

FT232RL Footprint

FT232RL 3D Model

FTDI, Future Technology Devices International Ltd FT232RL-REEL technical specifications, attributes, parameters and parts with similar specifications to FTDI, Future Technology Devices International Ltd FT232RL-REEL.

A USB bus-powered device gets its power from the USB bus. Basic rules for USB bus power devices are as follows.

i) When connected to a USB port, the gadget should drain no more than 100mA.

ii) The device should not draw more than 2.5mA when in USB Suspend mode.

iii) A bus-powered high-power USB device (one that draws more than 100mA) should use one of the CBUS pins designated as PWREN# to keep the current below 100mA when plugged in and 2.5mA when in USB suspend mode.

iv) A USB bus-powered hub cannot accept a device that uses more than 100mA.

v) No device on the USB bus can draw more than 500mA.

A USB self-powered device gets its power from its own power supply, VCC, and does not draw current from the USB bus. The basic rules for USB self-powered devices are as follows.

i) When the USB host or hub controller is powered down, a self-powered device shall not drive the current down the USB bus.

ii) Because it has its own power supply, a self-powered device can utilize as much current as it needs during regular operation and USB suspension.

iii) Any USB host, bus-powered USB hub, or self-powered USB hub can be utilized with a self-powered device.

The TTL levels of the FT232R are converted to RS232 levels using a TTL to RS232 Level Converter IC on the serial UART interface of the FT232R in this application. The popular "213" series of TTL to RS232 level converters can be used to perform this level shift. In a 28-LD SSOP package, these "213" devices typically have four transmitters and five receivers, as well as an in-built voltage converter that converts the +5V (nominal) VCC to the +/- 9 volts required by RS232. The SHDN# pin, which may be utilized to power down the device to a low quiescent current during USB suspend mode, is a helpful feature of these devices.

• USB to RS232/RS422/RS485 Converters

• Upgrading Legacy Peripherals to USB

• Cellular and Cordless Phone USB data transfer cables and interfaces

• Interfacing MCU/PLD/FPGA based designs to USB

• USB Audio and Low Bandwidth Video data transfer

• PDA to the USB data transfer

• USB Smart Card Readers

• USB Instrumentation

• USB Industrial Control

• USB MP3 Player Interface

• USB FLASH Card Reader and Writers

• Set-Top Box PC - USB interface

• USB Digital Camera Interface

• USB Hardware Modems

• USB Wireless Modems

• USB Bar Code Readers

• USB Software and Hardware Encryption Dongles

FT232RL Package information

FTDI Chip creates cutting-edge silicon solutions that improve how people interact with today's technology. Engineers may benefit from highly sophisticated, feature-rich, resilient, and simple-to-use product platforms because of the company's "Design Made Easy" approach. The long-established and ever-expanding FTDI Chip Universal Serial Bus (USB) product portfolio includes widely renowned products.