DS_FT312D USB ANDROID HOST IC Datasheet
Version 1.1
Document No.: FT_000816 Clearance No.: FTDI# 331
Table of Contents
1
Typical Applications...................................................................... 2
1.1 Part Numbers ..................................................................................... 2
1.2 USB Compliant.................................................................................... 2
FT312D Block Diagram ................................................................. 3
Device Pin Out and Signal Description.......................................... 6
2
3
3.1 Package Symbol.................................................................................. 6
3.1.1 Package PinOut Description...........................................................................................6
4
Function Description..................................................................... 8
4.1 Key Features....................................................................................... 8
4.2 Functional Block Descriptions............................................................. 8
4.2.1 UART Interface Module.................................................................................................8
4.2.2 Buffers .......................................................................................................................8
4.2.3 USB Host....................................................................................................................8
4.2.4 USB Transceivers.........................................................................................................8
4.3 Default Descriptor Strings .................................................................. 8
UART Interface........................................................................... 10
USB Error Detection.................................................................... 12
Absolute Maximum Ratings ........................................................ 13
7.1 DC Characteristics .............................................................................14
7.2 ESD and Latch-up Specifications........................................................15
Application Examples ................................................................. 16
8.1 USB to UARTConverter.......................................................................16
8.2 USB to RS232 Converter ....................................................................17
Package Parameters................................................................... 18
5
6
7
8
9
9.1 FT312D Package Markings.................................................................18
9.1.1 QFN-32 .................................................................................................................... 18
9.1.2 LQFP-32 ................................................................................................................... 19
9.2 FT312DPackage Dimensions..............................................................20
9.2.1 QFN-32 Package Dimensions....................................................................................... 20
9.2.2
LQFP-32 Package Dimensions...................................................................................... 21
9.3 Solder Reflow Profile .........................................................................22
10 Contact Information................................................................... 24
Appendix A – References............................................................................25
Appendix B - List of Figures and Tables......................................................26
Appendix C - Revision History.....................................................................27
Copyright © 2013 Future Technology Devices International Limited
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