FT232RL-2000 FTDI [Future Technology Devices International Ltd.], FT232RL-2000 Datasheet

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FT232RL-2000

Manufacturer Part Number
FT232RL-2000
Description
USB UART IC - Single chip USB to asynchronous serial data transfer interface
Manufacturer
FTDI [Future Technology Devices International Ltd.]
Datasheet
Future Technology Devices
The FT232R is a USB to serial UART
interface with the following advanced
features:
Neither the whole nor any part of the information contained in, or the product described in this manual, may be adapted or reproduced
in any material or electronic form without the prior written consent of the copyright holder. This product and its documentation are
supplied on an as-is basis and no warranty as to their suitability for any particular purpose is either made or implied. Future Technology
Devices International Ltd will not accept any claim for damages howsoever arising as a result of use or failure of this product. Your
statutory rights are not affected. This product or any variant of it is not intended for use in any medical appliance, device or system in
which the failure of the product might reasonably be expected to result in personal injury. This document provides preliminary
information that may be subject to change without notice. No freedom to use patents or other intellectual property rights is implied by
the publication of this document. Future Technology Devices International Ltd, Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow
G41 1HH United Kingdom. Scotland Registered Company Number: SC136640
FT232R USB UART IC
Single chip USB to asynchronous serial data
transfer interface.
Entire USB protocol handled on the chip. No
USB specific firmware programming required.
Fully integrated 1024 bit EEPROM storing
device descriptors and CBUS I/O configuration.
Fully integrated USB termination resistors.
Fully
external crystal required plus optional clock
output selection enabling a glue-less interface
to external MCU or FPGA.
Data transfer rates from 300 baud to 3 Mbaud
(RS422, RS485, RS232 ) at TTL levels.
128 byte receive buffer and 256 byte transmit
buffer utilising buffer smoothing technology to
allow for high data throughput.
FTDI‟s royalty-free Virtual Com Port (VCP) and
Direct
requirement for USB driver development in
most cases.
Unique USB FTDIChip-ID™ feature.
Configurable CBUS I/O pins.
Transmit and receive LED drive signals.
UART interface support for 7 or 8 data bits, 1
or 2 stop bits and odd / even / mark / space /
no parity
International Ltd
integrated
(D2XX)
Copyright © 2010 Future Technology Devices International Limited
clock
drivers
generation
eliminate
with
.
the
no
FT232R USB UART IC Datasheet Version 2.07
FIFO receive and transmit buffers for high data
throughput.
Synchronous
interface options with RD# and WR# strobes.
Device supplied pre-programmed with unique
USB serial number.
Supports bus powered, self powered and high-
power bus powered USB configurations.
Integrated +3.3V level converter for USB I/O.
Integrated level converter on UART and CBUS
for interfacing to between +1.8V and +5V
logic.
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 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).
and
Document No.: FT_000053
Clearance No.: FTDI# 38
asynchronous
bit
bang
1

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FT232RL-2000 Summary of contents

Page 1

Future Technology Devices International Ltd FT232R USB UART IC The FT232R is a USB to serial UART interface with the following advanced features: Single chip USB to asynchronous serial data transfer interface. Entire USB protocol handled on the chip. No ...

Page 2

... For driver installation, please refer to 1.2 Part Numbers Part Number FT232RQ-xxxx FT232RL-xxxx Note: Packing codes for xxxx is: - Reel: Taped and Reel, (SSOP is 2,000pcs per reel, QFN is 6,000pcs per reel). - Tube: Tube packing, 47pcs per tube (SSOP only) - Tray: Tray packing, 490pcs per tray (QFN only) For example: FT232RQ-Reel is 6,000pcs taped and reel packing Copyright © ...

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USB Compliant The FT232R is fully compliant with the USB 2.0 specification and has been given the USB-IF Test-ID (TID) 40680004. Copyright © 2010 Future Technology Devices International Limited Document No.: FT_000053 FT232R USB UART IC Datasheet Version 2.07 ...

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FT232R Block Diagram VCC 3.3 Volt LDO 3V3OUT Regulator USB Transceiver USBDP Serial Interface with Integrated Series USBDM Resistors and 1.5K Pull- up USB DPLL OSCO (optional) Internal x4 Clock 12MHz Multiplier OCSI Oscillator (optional) TEST GND Figure 2.1 ...

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Table of Contents 1 Typical Applications ........................................................................ 2 1.1 Driver Support .................................................................................... 2 1.2 Part Numbers...................................................................................... 2 Note: Packing codes for xxxx is: .................................................................. 2 1.3 USB Compliant .................................................................................... 3 2 FT232R Block Diagram .................................................................... 4 3 Device Pin Out ...

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QFN-32 Package Dimensions ............................................................ 36 9.3 QFN-32 Package Typical Pad Layout ................................................. 37 9.4 QFN-32 Package Typical Solder Paste Diagram ................................. 37 9.5 Solder Reflow Profile ........................................................................ 38 10 Contact Information ................................................................... 39 Appendix A – References ........................................................................... 40 ...

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... VCC. This means that in bus powered designs a regulator which is supplied by the +5V on the USB bus should be used. Device ground supply pins Document No.: FT_000053 Clearance No.: FTDI VCCIO TXD VCC RXD USBDM RTS# USBDP CTS# FT232RL DTR DSR# 19 RESET DCD# 27 OSCI 28 OSCO CBUS0 ...

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Pin No. Name Type 17 3V3OUT Output 20 VCC PWR 25 AGND PWR Table 3.2 Power and Ground Group Pin No. Name Type RESET# Input 26 TEST Input 27 OSCI Input 28 OSCO Output Table ...

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Pin No. Name Type 14 CBUS3 I/O 22 CBUS1 I/O 23 CBUS0 I/O Table 3.4 UART Interface and CUSB Group (see note 3) Notes: 1. The minimum operating voltage VCC must be +4.0V (could use VBUS=+5V) when using the internal ...

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QFN-32 Package 32 1 FTD YYXX-A XXXXXXX FT232RQ AGND CBUS0 22 CBUS1 21 GND 20 VCC 19 RESET# 18 GND ...

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Pin No. Name Type +3.3V output from integrated LDO regulator. This pin should be decoupled to ground using a 100nF capacitor. The purpose of this output is to provide the 16 3V3OUT Output internal +3.3V supply to the USB transceiver ...

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Pin Name Type No. Configurable CBUS I/O Pin. Function of this pin is configured in the device internal 11 CBUS3 I/O EEPROM. Factory default configuration is PWREN#. See CBUS Signal Options, Table 3.9. PWREN# should be used with a 10kΩ ...

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CBUS Signal Options The following options can be configured on the CBUS I/O pins. CBUS signal options are common to both package versions of the FT232R. These options can be configured in the internal EEPROM using the software utility ...

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Function Description 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 which requires ...

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Functional Block Descriptions The following paragraphs detail each function within the FT232R. Please refer to the block diagram shown in Figure 2.1 Internal EEPROM. The internal EEPROM in the FT232R is used to store USB Vendor ID (VID), Product ...

Page 16

Additionally, the UART signals can each be individually inverted and have a configurable high drive strength capability. Both these features are configurable in the EEPROM. Baud Rate Generator - The Baud Rate Generator provides a 16x clock input to the ...

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... Parameter Storage Temperature Floor Life (Out of Bag) At Factory Ambient (30°C / 60% Relative Humidity) Ambient Temperature (Power Applied) MTTF FT232RL MTTF FT232RQ VCC Supply Voltage DC Input Voltage – USBDP and USBDM DC Input Voltage – High Impedance Bidirectionals DC Input Voltage – All Other Inputs DC Output Current – ...

Page 18

DC Characteristics DC Characteristics (Ambient Temperature = -40°C to +85°C) Parameter Description VCC Operating Supply VCC1 Voltage VCC Operating Supply VCC1 Voltage VCCIO Operating VCC2 Supply Voltage Operating Supply Icc1 Current Operating Supply Icc2 Current 3V3 3.3v regulator output ...

Page 19

Parameter Description Voh Output Voltage High Vol Output Voltage Low Input Switching Vin Threshold Input Switching VHys Hysteresis Table 5.5 UART and CBUS I/O Pin Characteristics (VCCIO = +2.8V, Standard Drive Level) Parameter Description Voh Output Voltage High Vol Output ...

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Parameter Description Voh Output Voltage High Vol Output Voltage Low Input Switching Vin Threshold Input Switching VHys Hysteresis Table 5.9 UART and CBUS I/O Pin Characteristics (VCCIO = +2.8V, High Drive Level) Parameter Description Voh Output Voltage High Vol Output ...

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Parameter Description I/O Pins Static Output UVoh (High) I/O Pins Static Output UVol (Low) Single Ended Rx UVse Threshold Differential Common UCom Mode Differential Input UVDif Sensitivity Driver Output UDrvZ Impedance Table 5.12 USB I/O Pin (USBDP, USBDM) Characteristics 5.3 ...

Page 22

Parameter Description Voh Output Voltage High Vol Output Voltage Low Vin Input Switching Threshold Table 5.15 OSCI, OSCO Pin Characteristics – see Note 1 Note1: When supplied, the FT232R is configured to use its internal clock oscillator. These characteristics only ...

Page 23

... USB Power Configurations The following sections illustrate possible USB power configurations for the FT232R. The illustrations have omitted pin numbers for ease of understanding since the pins differ between the FT232RL and FT232RQ package options. All USB power configurations illustrated apply to both package options for the FT232R device. Please refer to Section 3 for the package option pin-out and signal descriptions ...

Page 24

Self Powered Configuration Figure 6.2 Self Powered Configuration Figure 6.2 illustrates the FT232R in a typical USB self powered configuration. A USB self powered device gets its power from its own power supply, VCC, and does not draw current ...

Page 25

USB Bus Powered with Power Switching Configuration P-Channel Power Ferrite Bead 10nF + 5 SHIELD GND 5V VCC 100nF 4.7uF + GND Figure 6.3 Bus Powered with Power Switching Configuration A requirement of USB bus ...

Page 26

USB Bus Powered with Selectable External Logic Supply Ferrite Bead 10nF + 5 SHIELD GND 100nF 4.7uF Figure 6.4 USB Bus Powered with +3.3V or +5V External Logic Power Supply Figure 6.4 illustrates a USB ...

Page 27

... Application Examples The following sections illustrate possible applications of the FT232R. The illustrations have omitted pin numbers for ease of understanding since the pins differ between the FT232RL and FT232RQ package options. 7.1 USB to RS232 Converter VCC Ferrite Bead 10nF + 5 SHIELD GND ...

Page 28

USB to RS485 Coverter Vcc Ferrite Bead 10nF + 5 SHIELD GND Vcc 100nF 4.7uF + GND Figure 7.2 Application Example Showing USB to RS485 Converter An example of using the FT232R as a USB ...

Page 29

USB to RS422 Converter Vcc Ferrite Bead 10nF + 5 SHIELD GND Vcc 100nF 4.7uF + GND Figure 7.3 USB to RS422 Converter Configuration An example of using the FT232R as a USB to RS422 ...

Page 30

USB to MCU UART Interface Vcc Ferrite Bead 10nF + 5 SHIELD GND Vcc 100nF 4.7uF + GND Figure 7.4 USB to MCU UART Interface An example of using the FT232R as a USB to ...

Page 31

LED Interface Any of the CBUS I/O pins can be configured to drive an LED. The FT232R has 3 configuration options for driving LEDs from the CBUS. These are TXLED#, RXLED#, and TX&RXLED#. Refer to Section 3.5 for configuration ...

Page 32

Using the External Oscillator The FT232R defaults to operating using its own internal oscillator. This requires that the device is powered with VCC(min)=+4.0V. This supply voltage can be taken from the USB VBUS. Applications which require using an external ...

Page 33

Internal EEPROM Configuration Following a power-on reset or a USB reset the FT232R will scan its internal EEPROM and read the USB configuration descriptors stored there. The default factory programmed values of the internal EEPROM are shown in Table ...

Page 34

Parameter CBUS4 Invert TXD Invert RXD Invert RTS# Invert CTS# Invert DTR# Invert DSR# Invert DCD# Invert RI# Table 8.1 Default Internal EEPROM Configuration The internal EEPROM in the FT232R can be programmed over USB using the FTDI utility program ...

Page 35

... Figure 9.1 SSOP-28 Package Dimensions The FT232RL is supplied in a RoHS compliant 28 pin SSOP package. The package is lead (Pb) free and uses a „green‟ compound. The package is fully compliant with European Union directive 2002/95/EC. This package is nominally 5.30mm x 10.20mm body (7.80mm x 10.20mm including pins). The pins are ...

Page 36

QFN-32 Package Dimensions Indicates Pin #1 (Laser Marked) Central Heat Sink Area 0.500 0.250 +/-0.050 Pin #1 ID 0.200 Note: The pin # connected internally to the device’s central heat sink area . It is recommended to ...

Page 37

QFN-32 Package Typical Pad Layout 0.500 Optional GND Connection 0.30 0.200 Min Figure 9.3 Typical Pad Layout for QFN-32 Package 9.4 QFN-32 Package Typical Solder Paste Diagram Figure 9.4 Typical Solder Paste Diagram for QFN-32 Package Copyright © 2010 ...

Page 38

Solder Reflow Profile The FT232R is supplied in Pb free 28 LD SSOP and QFN-32 packages. The recommended solder reflow profile for both package options is shown in Figure 9. Max S T Min ...

Page 39

Contact Information Head Office – Glasgow, UK Future Technology Devices International Limited Unit 1, 2 Seaward Place Centurion Business Park Glasgow, G41 1HH United Kingdom Tel: +44 (0) 141 429 2777 Fax: +44 (0) 141 429 2758 E-mail (Sales) ...

Page 40

Appendix A – References Useful Application Notes http://www.ftdichip.com/Documents/AppNotes/AN232R-01_FT232RBitBangModes.pdf http://www.ftdichip.com/Documents/AppNotes/AN_107_AdvancedDriverOptions_AN_000073.pdf http://www.ftdichip.com/Documents/AppNotes/AN232R-02_FT232RChipID.pdf http://www.ftdichip.com/Documents/AppNotes/AN_121_FTDI_Device_EEPROM_User_Area_Usage.pdf http://www.ftdichip.com/Documents/AppNotes/AN_120_Aliasing_VCP_Baud_Rates.pdf http://www.ftdichip.com/Documents/AppNotes/AN_100_Using_The_FT232_245R_With_External_Osc(FT_ 000067).pdf http://www.ftdichip.com/Resources/Utilities/AN_126_User_Guide_For_FT232_Factory%20test%20utility. pdf http://www.ftdichip.com/Documents/AppNotes/AN232B-05_BaudRates.pdf http://www.ftdichip.com/Documents/InstallGuides.htm Copyright © 2010 Future Technology Devices International Limited Document No.: FT_000053 FT232R USB UART IC Datasheet Version 2.07 Clearance No.: FTDI# 38 ...

Page 41

Appendix B - List of Figures and Tables List of Figures Figure 2.1 FT232R Block Diagram ................................................................................................... 4 Figure 3.1 SSOP Package Pin Out and Schematic Symbol .......................................................... 7 Figure 3.2 QFN-32 Package Pin Out and schematic symbol .............................................................. 10 ...

Page 42

Table 5.11 RESET# and TEST Pin Characteristics ............................................................................ 20 Table 5.12 USB I/O Pin (USBDP, USBDM) Characteristics ................................................................. 21 Table 5.13 EEPROM Characteristics ............................................................................................... 21 Table 5.14 Internal Clock Characteristics ....................................................................................... 21 Table 5.15 OSCI, OSCO Pin Characteristics – see ...

Page 43

Appendix C - Revision History Version 0.90 Initial Datasheet Created Version 0.96 Revised Pre-release datasheet Version 1.00 Full datasheet released Version 1.02 Minor revisions to datasheet Version 1.03 Manufacturer ID added to default EEPROM configuration; Buffer sizes added Version 1.04 ...

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