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Kynix Part #: KY32-FT232RQ
Manufacturer Part#:


Product Category: IC Chips
Manufacturer: FDTI
  datasheetFT232RQ Datasheet
Package: QFN
Quantity: 28980 PCS
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level(MSL): 3(168 Hours)
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Manufacturer: FDTI
Product Category: IC Chips
Features, Applications

Features, Applications

Incorporating Clock Generator Output and FTDIChip-IDTM Security Dongle

The FT232R is the latest device to be added to FTDI's range of USB UART interface Integrated Circuit Devices. The is a USB to serial UART interface with optional clock generator output, and the new FTDIChip-IDTM security dongle feature. In addition, asynchronous and synchronous bit bang interface modes are available. USB to serial designs using the FT232R have been further simplified by fully integrating the external EEPROM, clock circuit and USB resistors onto the device. The FT232R adds two new functions compared with its predecessors, effectively making a "3-in-1" chip for some application areas. The internally generated clock 12MHz, 24MHz, and 48MHz) can be brought out of the device and used to drive a microcontroller or external logic. A unique number (the FTDIChip-IDTM) is burnt into the device during manufacture and is readable over USB, thus forming the basis of a security dongle which can be used to protect customer application software from being copied. The FT232R is available in Pb-free (RoHS compliant) compact 28-Lead SSOP and QFN-32 packages.

Single chip USB to asynchronous serial data transfer interface. Entire USB protocol handled on the chip - No USB-specific firmware programming required. UART interface support for or 8 data bits, or 2 stop bits and odd / even / mark / space / no parity. Fully assisted hardware or X-On / X-Off software handshaking. Data transfer rates from 300 baud to 3 Megabaud / RS485 and at TTL levels) and 300 baud to 1 Megabaud (RS232). 256 byte receive buffer and 128 byte transmit buffer utilising buffer smoothing technology to allow for high data throughput. FTDI's royalty-free VCP and D2XX drivers eliminate the requirement for USB driver development in most cases. In-built support for event characters and line break condition. New USB FTDIChip-IDTM feature. New configurable CBUS I/O pins. Auto transmit buffer control for RS485 applications. Transmit and receive LED drive signals. New 48MHz, 24MHz,12MHz, and 6MHz clock output signal Options for driving external MCU or FPGA. FIFO receive and transmit buffers for high data throughput. Adjustable receive buffer timeout. Synchronous and asynchronous bit bang mode interface options with RD# and WR# strobes. New CBUS bit bang mode option.

Integrated 1024 Bit internal EEPROM for storing USB VID, PID, serial number and product description strings, and CBUS I/O configuration. Device supplied preprogrammed with unique USB serial number. Support for USB suspend and resume. Support for bus powered, self powered, and highpower bus powered USB configurations. Integrated 3.3V level converter for USB I/O. Integrated level converter on UART and CBUS for interfacing - 1.8V Logic. True / 1.8V CMOS drive output and TTL input. High I/O pin output drive option. Integrated USB resistors. Integrated power-on-reset circuit. Fully integrated clock - no external crystal, oscillator, or resonator required. Fully integrated AVCC supply filtering - No separate AVCC pin and no external R-C filter required. UART signal inversion option. USB bulk transfer mode. to 5.25V Single Supply Operation. Low operating and USB suspend current. Low USB bandwidth consumption. UHCI / OHCI / EHCI host controller compatible USB 2.0 Full Speed compatible. to 85°C extended operating temperature range. Available in compact Pb-free 28 Pin SSOP and QFN-32 packages (both RoHS compliant).

Royalty-Free VIRTUAL COM PORT (VCP) DRIVERS for... Windows 98, 98SE, ME, 2000, Server 2003, XP. Windows Vista / Longhorn* Windows XP 64-bit.* Windows XP Embedded. Windows CE.NET & 5.0 MAC / 9, OS-X Linux 2.4 and greater

Royalty-Free D2XX Direct Drivers (USB Drivers + DLL S/W Interface) Windows 98, 98SE, ME, 2000, Server 2003, XP. Windows Vista / Longhorn* Windows XP 64-bit.* Windows XP Embedded. Windows CE.NET & 5.0 Linux 2.4 and greater

The drivers listed above are all available to download for free from the FTDI website. Various 3rd Party Drivers are also available for various other operating systems - see the FTDI website for details.

* Currently Under Development. Contact FTDI for availability.

USB / 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 Audio and Low Bandwidth Video data transfer 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 Hardware Modems USB Wireless Modems USB Bar Code Readers USB Software / Hardware Encryption Dongles

This section summarises the enhancements and the key features of the FT232R device. For further details, consult the device pin-out description and functional description sections. Integrated Clock Circuit - Previous generations of FTDI's USB UART devices required an external crystal or ceramic resonator. The clock circuit has now been integrated onto the device meaning that no crystal or ceramic resonator is required. However, if required, an external 12MHz crystal can be used as the clock source. Integrated EEPROM - Previous generations of FTDI's USB UART devices required an external EEPROM if the device were to use USB Vendor ID (VID), Product ID (PID), serial number and product description strings other than the default values in the device itself. This external EEPROM has now been integrated onto the FT232R chip meaning that all designs have the option to change the product description strings. A user area of the internal EEPROM is available for storing additional data. The internal EEPROM is programmable in circuit, over USB without any additional voltage requirement. Preprogrammed EEPROM - The FT232R is supplied with its internal EEPROM preprogrammed with a serial number which is unique to each individual device. This, in most cases, will remove the need to program the device EEPROM. Integrated USB Resistors - Previous generations of FTDI's USB UART devices required two external series resistors on the USBDP and USBDM lines, and 1.5 k pull up resistor on USBDP. These three resistors have now been integrated onto the device. Integrated AVCC Filtering - Previous generations of FTDI's USB UART devices had a separate AVCC pin - the supply to the internal PLL. This pin required an external R-C filter. The separate AVCC pin is now connected internally to VCC, and the filter has now been integrated onto the chip. Less External Components - Integration of the crystal, EEPROM, USB resistors, and AVCC filter will substantially reduce the bill of materials cost for USB interface designs using the FT232R compared to its FT232BM predecessor. Transmit and Receive Buffer Smoothing - The FT232R's 256 byte receive buffer and 128 byte transmit buffer utilise new buffer smoothing technology to allow for high data throughput. Configurable CBUS I/O Pin Options - There are now 5 configurable Control Bus (CBUS) lines. Options are TXDEN - transmit enable for RS485 designs, PWREN# - Power control for high power, bus powered designs, TXLED# - for pulsing an LED upon transmission of data, RXLED# - for pulsing an LED upon receiving data, TX&RXLED# - which will pulse an LED upon transmission OR reception of data, SLEEP# - indicates that the device going into USB suspend mode, 48MHz, 24MHz,12MHz, and 6MHz clock output signal options. There is also the option to bring out bit bang mode read and write strobes (see below). The CBUS lines can be configured with any one of these output options by setting bits in the internal EEPROM. The device is supplied with the most commonly used pin definitions preprogrammed - see Section 10 for details. Enhanced Asynchronous Bit Bang Mode with RD# and WR# Strobes - The FT232R supports FTDI's BM chip bit bang mode. In bit bang mode, the eight UART lines can be switched from the regular interface mode an 8-bit general purpose I/O port. Data packets can be sent to the device and they will be sequentially sent to the interface at a rate controlled by an internal timer (equivalent to the baud rate prescaler). With the FT232R device this mode has been enhanced so that the internal RD# and WR# strobes are now brought out of the device which can be used to allow external logic to be clocked by accesses to the bit bang I/O bus. This option will be described more fully in a separate application note. Synchronous Bit Bang Mode - Synchronous bit bang mode differs from asynchronous bit bang mode in that the interface pins are only read when the device is written to. Thus making it easier for the controlling program to measure the response to an output stimulus as the data returned is synchronous to the output data. The feature was previously seen in FTDI's FT2232C device. This option will be described more fully in a separate application note. CBUS Bit Bang Mode - This mode allows four of the CBUS pins to be individually configured as GPIO pins, similar to Asynchronous bit bang mode. It is possible to use this mode while the UART interface is being used, thus providing up to four general purpose I/O pins which are available during normal operation. An application note describing this feature is available separately from the FTDI website.

FT232R USB UART I.C. Datasheet Version 1.04 ? Future Technology Devices International Ltd. 2005

Search Part number : "FT232" Included word is 11
Part Number Manufacturer Package Quantity Description
FT232 FTDI SSOP28 4061
FT232BL FTDI QFP32 14700
FT232BL/FT245RL/FT232RL QFP 3060
FT232RL FTDI SSOP28 85795
FT232RL/FT232BL/FT245 FTDI SSOP28 2260
  • FT232
  • FT232BL
  • FT232BL/FT245RL/FT232RL
  • FT232BL
  • FT232BM
  • FT232BQ
  • FT232QR
  • FT232RL
  • FT232RL/FT232BL/FT245
  • FT232RLR
  • FT232HL
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