Future Technology Devices International Ltd. TN_139 FT230X Errata Technical Note Document Reference No.: FT_000641 Version 1.4 Issue Date: 2013-06-10 The intention of this errata technical note is to give a detailed description of known functional or electrical issues with the FTDI FT230X devices. The current revision of the FT230X is revision D, released November 2012. Future Technology Devices International Limited (FTDI) Unit1, 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 (Support): [email protected] Web: http://www.ftdichip.com Copyright © 2013 Future Technology Devices International Limited TN_139 FT230X Errata Technical Note Version 1.4 Document Reference No.: FT_000641 Clearance No.: FTDI# 285 TABLE OF CONTENTS 1 FT230X Revision .................................................................................... 2 2 Errata History Table – Functional Problems........................................ 3 3 2.1 Errata History Table – Programming Issues. .................................................... 3 2.2 Errata History Table – Electrical and Timing Specification Deviations. ......... 3 Functional Problems of FT230X ........................................................... 4 3.1 3.1.1 USB Data Transfer .................................................................................................................. 4 3.1.2 USB 3.0 Hosts ......................................................................................................................... 5 3.1 USB Data Transfer .................................................................................................................. 6 3.1.2 USB 3.0 Hosts ......................................................................................................................... 7 Revision C ............................................................................................................ 8 3.2.1 USB Data Transfer .................................................................................................................. 8 3.2.2 USB 3.0 Hosts ......................................................................................................................... 9 3.3 Revision D ............................................................................................................ 9 Programming Issues of FT230X ......................................................... 10 4.1 4.1.1 4.2 4.2.1 5 Revision B ............................................................................................................ 6 3.1.1 3.2 4 Revision A ............................................................................................................ 4 Revision A .......................................................................................................... 10 Default VCP Setting is Disabled ............................................................................................ 10 Revision B .......................................................................................................... 11 Default VCP Setting is Disabled ............................................................................................ 11 4.3 Revision C .......................................................................................................... 11 4.4 Revision D .......................................................................................................... 11 Electrical and Timing specification deviations of FT230X ................ 12 5.1 Revision A .......................................................................................................... 12 5.2 Revision B .......................................................................................................... 12 5.2.1 Internal 3V3 Regulator ........................................................................................................... 12 5.1 Revision C .......................................................................................................... 12 5.2 Revision D .......................................................................................................... 12 6 FT230X Package Markings .................................................................. 13 7 Contact Information............................................................................. 14 Appendix C – Revision History ................................................................. 15 Copyright © 2013 Future Technology Devices International Limited 1 TN_139 FT230X Errata Technical Note Version 1.4 Document Reference No.: FT_000641 Clearance No.: FTDI# 285 1 FT230X Revision FT230X part numbers are listed in Table 1. The letter at the end of date code identifies the device revision. The current revision of the FT230X is revision D, released November 2012. At the time of releasing this Technical Note there are no known issues with this silicon revision. Part Number Package FT230XQ 16 pin QFN FT230XS 16 pin SSOP Table 1 FT230X Part Numbers This errata technical note covers the revisions of FT230X listed in Table 2. Revision Notes A First device revision. Never sold publicly. B Second device revision. Launched 28 February 2012 C Third device revision, Launched 11th June 2012 D Forth device version. Released 6th November 2012 Table 2 FT230X Revisions Copyright © 2013 Future Technology Devices International Limited 2 TN_139 FT230X Errata Technical Note Version 1.4 Document Reference No.: FT_000641 Clearance No.: FTDI# 285 2 Errata History Table – Functional Problems Short description Errata occurs in device revision Transfer of data over USB stops unexpectedly A, B and C USB 3.0 Host occasional interoperability A, B and C Functional Problem USB Data Transfer USB 3.0 Hosts Table 3 Functional Errata 2.1 Errata History Table – Programming Issues. Functional Problem Short description Errata occurs in device revision FT230X Default VCP setting is disabled A, B Table 4 Programming Errata 2.2 Errata History Table – Electrical and Timing Specification Deviations. Deviations Short description Errata occurs in device revision Device VCC is designed to operate between 3V3 and 5V Fault with internal 3V3 regulator. however with this errata the B supply should not be set below 4.3V for correct operation. Table 5 Electrical and Timing Errata Copyright © 2013 Future Technology Devices International Limited 3 TN_139 FT230X Errata Technical Note Version 1.4 Document Reference No.: FT_000641 Clearance No.: FTDI# 285 3 Functional Problems of FT230X 3.1 Revision A 3.1.1 USB Data Transfer Introduction: An issue has been identified where the transfer of data over USB stops unexpectedly. Problem: The device is put into suspend mode during a transfer of certain data patterns most notable with binary zeros. This can halt the data transfer in certain circumstances and will require the device to be reenumerated to recover. NB. It is the presence of this data pattern on the USB bus regardless of whether the data is intended for the FT230X or other devices (e.g. a broadcast) on the bus that forces the suspend state. Workaround: This issue can be avoided by utilising the keep awake function of the chip. This will disable the USB suspend function of the chip and is therefore an intermediate workaround until revision D silicon is released with a permanent fix. NB. With the workaround the chip will never enter lower powered suspend. However the keep awake current will be approximately 3mA. To enable the keep awake function in the EEPROM, one of the CBUS pins needs to be configured as KeepAwake#. This pin then needs to be tied to ground on the PCB. The FT_Prog utility can be used to configure the CBUS pin. Package specific: The effected packages are listed in Table 6. Package Applicable (Yes/No) FT230XQ Y FT230XS Y Table 6 Copyright © 2013 Future Technology Devices International Limited 4 TN_139 FT230X Errata Technical Note Version 1.4 Document Reference No.: FT_000641 Clearance No.: FTDI# 285 3.1.2 USB 3.0 Hosts Introduction: An issue has been identified where the FT230X will not enumerate when connected to certain USB 3.0 Hosts. So far FTDI have identified ONE such host. Problem: Certain USB 3.0 Hosts exhibit reduced reset recovery times after a USB reset, which can at times be faster or close to the USB 2.0 specification limit. The USB 2.0 specification states a USB reset recovery time of 10ms and in general almost all hosts allocate a much longer period than this. The FT230X device may not enumerate if the reset recovery time is reduced. This issue has been seen on one USB 3.0 Host controller and has not been seen on a USB 2.0 Host controller or other USB 3.0 Host controllers. Workaround: Reconnect the device to a USB 2.0 host. This issue has been seen only on one particular USB 3.0 Host controllers. Package specific: The effected packages are listed in Table 7. Package Applicable (Yes/No) FT230XQ Y FT230XS Y Table 7 Copyright © 2013 Future Technology Devices International Limited 5 TN_139 FT230X Errata Technical Note Version 1.4 Document Reference No.: FT_000641 Clearance No.: FTDI# 285 3.1 Revision B 3.1.1 USB Data Transfer Introduction: An issue has been identified where the transfer of data over USB stops unexpectedly. Problem: The device is put into suspend mode during a transfer of certain data patterns most notable with binary zeros. This can halt the data transfer in certain circumstances and will require the device to be reenumerated to recover. NB. It is the presence of this data pattern on the USB bus regardless of whether the data is intended for the FT230X or other devices (e.g. a broadcast) on the bus that forces the suspend state. Workaround: This issue can be avoided by utilising the keep awake function of the chip. This will disable the USB suspend function of the chip and is therefore an intermediate workaround until revision D silicon is released with a permanent fix. NB. With the workaround the chip will never enter lower powered suspend. However the keep awake current will be approximately 3mA. To enable the keep awake function in the EEPROM, one of the CBUS pins needs to be configured as KeepAwake#. This pin then needs to be tied to ground on the PCB. The FT_Prog utility can be used to configure the CBUS pin. Package specific: The effected packages are listed in Table 8. Package Applicable (Yes/No) FT230XQ Y FT230XS Y Table 8 Copyright © 2013 Future Technology Devices International Limited 6 TN_139 FT230X Errata Technical Note Version 1.4 Document Reference No.: FT_000641 Clearance No.: FTDI# 285 3.1.2 USB 3.0 Hosts Introduction: An issue has been identified where the FT230X will not enumerate when connected to certain USB 3.0 Hosts. So far FTDI have identified ONE such host. Problem: Certain USB 3.0 Hosts exhibit reduced reset recovery times after a USB reset, which can at times be faster or close to the USB 2.0 specification limit. The USB 2.0 specification states a USB reset recovery time of 10ms and in general almost all hosts allocate a much longer period than this. The FT230X device may not enumerate if the reset recovery time is reduced. This issue has been seen on one USB 3.0 Host controller and has not been seen on a USB 2.0 Host controller or other USB 3.0 Host controllers. Workaround: Reconnect the device to a USB 2.0 host. This issue has been seen only on one particular USB 3.0 Host controllers. Package specific: The effected packages are listed in Table 9. Package Applicable (Yes/No) FT230XQ Y FT230XS Y Table 9 Copyright © 2013 Future Technology Devices International Limited 7 TN_139 FT230X Errata Technical Note Version 1.4 Document Reference No.: FT_000641 Clearance No.: FTDI# 285 3.2 Revision C 3.2.1 USB Data Transfer Introduction: An issue has been identified where the transfer of data over USB stops unexpectedly. Problem: The device is put into suspend mode during a transfer of certain data patterns most notable with binary zeros. This can halt the data transfer in certain circumstances and will require the device to be reenumerated to recover. NB. It is the presence of this data pattern on the USB bus regardless of whether the data is intended for the FT230X or other devices (e.g. a broadcast) on the bus that forces the suspend state. Workaround: This issue can be avoided by utilising the keep awake function of the chip. This will disable the USB suspend function of the chip and is therefore an intermediate workaround until revision D silicon is released with a permanent fix. NB. With the workaround the chip will never enter lower powered suspend. However the keep awake current will be approximately 3mA. To enable the keep awake function in the EEPROM, one of the CBUS pins needs to be configured as KeepAwake#. This pin then needs to be tied to ground on the PCB. The FT_Prog utility can be used to configure the CBUS pin. Package specific: The effected packages are listed in Table 10. Package Applicable (Yes/No) FT230XQ Y FT230XS Y Table 10 Copyright © 2013 Future Technology Devices International Limited 8 TN_139 FT230X Errata Technical Note Version 1.4 Document Reference No.: FT_000641 Clearance No.: FTDI# 285 3.2.2 USB 3.0 Hosts Introduction: An issue has been identified where the FT230X will not enumerate when connected to certain USB 3.0 Hosts. So far FTDI have identified ONE such host. Problem: Certain USB 3.0 Hosts exhibit reduced reset recovery times after a USB reset, which can at times be faster or close to the USB 2.0 specification limit. The USB 2.0 specification states a USB reset recovery time of 10ms and in general almost all hosts allocate a much longer period than this. The FT230X device may not enumerate if the reset recovery time is reduced. This issue has been seen on one USB 3.0 Host controller and has not been seen on a USB 2.0 Host controller or other USB 3.0 Host controllers. Workaround: Reconnect the device to a USB 2.0 host. This issue has been seen only on one particular USB 3.0 Host controllers. Package specific: The effected packages are listed in Table 11. Package Applicable (Yes/No) FT230XQ Y FT230XS Y Table 11 3.3 Revision D No known issues at revision D. Copyright © 2013 Future Technology Devices International Limited 9 TN_139 FT230X Errata Technical Note Version 1.4 Document Reference No.: FT_000641 Clearance No.: FTDI# 285 4 Programming Issues of FT230X 4.1 Revision A 4.1.1 Default VCP Setting is Disabled Introduction: The FT230X stores several configuration values in the MTP. The VCP driver is intended to be enabled with the FT230X. Problem: An incorrect value for the VCP driver was programmed into the MTP on some production runs. Workaround: Use FT_Prog or a custom D2XX program to change the MTP setting to enable loading of the VCP driver. This setting has been corrected in all Rev C devices. Package specific: The effected packages are listed in Table 12. Package Applicable (Yes/No) FT230XQ Y FT230XS Y Table 12 Copyright © 2013 Future Technology Devices International Limited 10 TN_139 FT230X Errata Technical Note Version 1.4 Document Reference No.: FT_000641 Clearance No.: FTDI# 285 4.2 Revision B 4.2.1 Default VCP Setting is Disabled Introduction: The FT230X stores several configuration values in the MTP. The VCP driver is intended to be enabled with the FT230X. Problem: An incorrect value for the VCP driver was programmed into the MTP on some production runs. Workaround: Use FT_Prog or a custom D2XX program to change the MTP setting to enable loading of the VCP driver. This setting has been corrected in all Rev C devices. Package specific: The effected packages are listed in Table 13. Package Applicable (Yes/No) FT230XQ Y FT230XS Y Table 13 4.3 Revision C No known programming issues at Revision C. 4.4 Revision D No known issues at revision D. Copyright © 2013 Future Technology Devices International Limited 11 TN_139 FT230X Errata Technical Note Version 1.4 Document Reference No.: FT_000641 Clearance No.: FTDI# 285 5 Electrical and Timing specification deviations of FT230X 5.1 Revision A No known issues at revision A 5.2 Revision B 5.2.1 Internal 3V3 Regulator Introduction: The FT230X uses an internal regulator to generate 3V3 from a 5V source (VCC). The source should be variable from 3V3 to 5V. Problem: The VCC supply to the regulator must not drop below 4.3V for the correct 3V3 regulated output to be produced. Workaround: VCC must not be supplied below 4.3V. Package specific: The effected packages are listed in Table 14. Package Applicable (Yes/No) FT230XQ Y FT230XS Y Table 14 5.1 Revision C No known issues at revision C 5.2 Revision D No known issues at revision D. Copyright © 2013 Future Technology Devices International Limited 12 TN_139 FT230X Errata Technical Note Version 1.4 Document Reference No.: FT_000641 Clearance No.: FTDI# 285 6 FT230X Package Markings FT230X is available in a RoHS Compliant RoHS Compliant package, 16 pin QFN and 16 pin SSOP. An example of the markings on the package is shown in Figure 5.1. 1 12 FTDII XXXXXXXXXX FT230XQ YYWW-C 5 8 Figure 6-1 Package Markings – FT230XQ -C FT230XS Figure 6-2 Package Markings – FT230XS The date code format is YYWW where WW = 2 digit week number, YY = 2 digit year number. This is followed by the revision number. The code XXXXXXXXXXXX is the manufacturing LOT code Copyright © 2013 Future Technology Devices International Limited 13 TN_139 FT230X Errata Technical Note Version 1.4 Document Reference No.: FT_000641 Clearance No.: FTDI# 285 7 Contact Information Head Office – Glasgow, UK 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) E-mail (Support) E-mail (General Enquiries) [email protected] [email protected] [email protected] Branch Office – Oregon, USA 7130 Fir Loop, Tigard, OR 97223-8160 USA Tel: +1 (503) 547 0988 Fax: +1 (503) 547 0987 E-Mail (Sales) E-Mail (Support) E-Mail (General Enquiries) [email protected] [email protected] [email protected] Branch Office – Shanghai, China Branch Office – Taipei, Taiwan 2F, No. 516, Sec. 1, NeiHu Road Taipei 114 Taiwan , R.O.C. Tel: +886 (0) 2 8797 1330 Fax: +886 (0) 2 8751 9737 E-mail (Sales) E-mail (Support) E-mail (General Enquiries) [email protected] [email protected] [email protected] Room 1103, No. 666 West Huaihai Road, Shanghai, 200052 China Tel: +86 21 62351596 Fax: +86 21 62351595 E-mail (Sales) E-mail (Support) E-mail (General Enquiries) [email protected] [email protected] [email protected] Web Site http://ftdichip.com System and equipment manufacturers and designers are responsible to ensure that their systems, and any Future Technology Devices International Ltd (FTDI) devices incorporated in their systems, meet all applicable safety, regulatory and system-level performance requirements. All application-related information in this document (including application descriptions, suggested FTDI devices and other materials) is provided for reference only. While FTDI has taken care to assure it is accurate, this information is subject to customer confirmation, and FTDI disclaims all liability for system designs and for any applications assistance provided by FTDI. Use of FTDI devices in life support and/or safety applications is entirely at the user’s risk, and the user agrees to defend, indemnify and hold harmless FTDI from any and all damages, claims, suits or expense resulting from such use. This document is subject to change without notice. No freedom to use patents or other intellectual property rights is implied by the publication of this document. Neither the whole nor any part of the information contained in, or the product described in this document, may be adapted or reproduced in any material or electronic form without the prior written consent of the copyright holder. Future Technology Devices International Ltd, Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow G41 1HH, United Kingdom. Scotland Registered Company Number: SC136640 Copyright © 2013 Future Technology Devices International Limited 14 TN_139 FT230X Errata Technical Note Version 1.4 Document Reference No.: FT_000641 Clearance No.: FTDI# 285 Appendix C – Revision History Document Title: Document Reference No.: Clearance No.: Product Page: Document Feedback: Version 1.0 Version 1.1 Version 1.2 Version 1.3 Version 1.4 TN_139 FT230X Errata Technical Note FT_000641 FTDI# 285 http://www.ftdichip.com/FT-X.htm Send Feedback First Release Added VCP MTP setting corrections Correct pin number in Table 1 Added Rev C release Added USB data transfer issue and corrected programming issues Added USB 3.0 hosts and note to Problem section of USB data transfer Added revision D – no known issues, updated contact information 09/03/2012 11/06/2012 12/07/2012 14/08/2012 10/06/2013 Copyright © 2013 Future Technology Devices International Limited 15