FT260 HID-CLASS USB TO UART/I2C BRIDGE IC
Version 1.1
Document No.: FT_001272
Clearance No.: FTDI#484
Future Technology Devices
International Ltd
.
FT260
(HID-class USB to UART/I
2
C
Bridge IC)
FT260 is a HID-class USB to I
2
C/UART interface
Device Controller with the following advanced
features:
Single chip USB to UART/I
2
C bridge with
standard Human Interface Device (HID) class
support
USB2.0 compliant Full Speed device with entire
USB protocol handled on the chip.
Support
2
USB
HID
corresponding
to
the
2
interfaces, I C and UART
Interfaces,
each
on-chip
physical
Fully integrated oscillator PLL with no external
crystal required
On-chip eFUSE for USB Vendor ID (VID),
Product ID (PID), and other vendor specific
parameters.
Unique USB serial number generation engine
and programming path to external EEPROM.
Integrated 5V-3.3V-1.8V level converter for
USB I/O.
+5V USB VBUS detection engine
USB Power Configurations; supports bus-
powered, self-powered and bus-powered with
power switching.
USB2.0 Low operating and suspend current;
24mA (active-typ) and 385µA (suspend-typ).
True 3.3V CMOS drive output and TTL input.
(operates down to 1V8 with external pull-ups)
Multiple I/O operating voltage level +3.3V,
+2.5V, +1.8V
pin output drive strength; 4 mA(min) and 16
mA(max)
Integrated power-on-reset circuit.
USB Battery Charger Detection.
UHCI / OHCI / EHCI / XHCI host controller
compatible.
Extended operating temperature range; -40 to
85⁰C.
Available in compact Pb-free 28 Pin WQFN or
TSSOP packages (RoHS compliant).
Pin configuration of enabling HID interface for
variety of application
HID over I
2
C specification support
Configurable I
2
C Master Interface controller
conforming to I
2
C v2.1 and v3.0 specification.
Support 4 speed modes defined in I C-bus
Specification, standard mode (SM), fast mode
(FM), Fast mode plus (FM+), and High Speed
mode (HS)
Robust FTDI UART controller with hardware and
software flow control
Data transfer rate from 1.2 Kbuad to 12 Mbaud
(RS422, RS485, RS232) at TTL levels
Configurable GPIOs can be easily controlled by
software applications under HID class via the
USB bus
2
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
Copyright © Future Technology Devices International Limited
1
FT260 HID-CLASS USB TO UART/I2C BRIDGE IC
Version 1.1
Document No.: FT_001272
Clearance No.: FTDI#484
1
Typical Applications
HID class Device controller
USB to HID-over-I2C Bridge
USB to I
2
C master controller
USB to RS232/RS422/RS485 Converters
Interfacing MCU/PLD/FPGA based designs to
USB
USB Instrumentation
1.1
Driver Support
The USB Human Interface Device (HID) class is natively supported by most operation systems. A custom
driver is not required to be installed for the FT260.
Windows 10 32, 64-bit
Windows 8.1 32, 64-bit
Windows 8 32, 64-bit
Windows 7 32, 64-bit
Windows Vista and Vista 64-bit
Windows XP and XP 64-bit
Windows CE 4.2, 5.0, 5.2, 6.0
Windows Server 2008, 2003, 2000
Windows Embedded Operating Systems
Mac OS X
Linux
Android
1.2
Part Numbers
Part Number
FT260Q-x
FT260S-x
Note: Packing codes for x is:
- R: Taped and Reel, 2,500pcs per reel
- T: Tray packing, 490pcs per tray (WQFN only)
- U: Tube packing, 50pcs per tube (TSSOP only)
For example: FT260Q-R is 2,500pcs taped and reel packing
Package
28 Pin WQFN
28 Pin TSSOP
Copyright © Future Technology Devices International Limited
2
FT260 HID-CLASS USB TO UART/I2C BRIDGE IC
Version 1.1
Document No.: FT_001272
Clearance No.: FTDI#484
1.3
USB Compliant
The FT260 is fully compliant with the USB 2.0 specification and has been given the USB-IF Test-ID (TID)
40001720.
.
Copyright © Future Technology Devices International Limited
3
FT260 HID-CLASS USB TO UART/I2C BRIDGE IC
Version 1.1
Document No.: FT_001272
Clearance No.: FTDI#484
2
FT260 Block Diagram
Figure 2.1 FT260 Block Diagram
For a description of each function please refer to Function Description.
Copyright © Future Technology Devices International Limited
4
FT260 HID-CLASS USB TO UART/I2C BRIDGE IC
Version 1.1
Document No.: FT_001272
Clearance No.: FTDI#484
Table of Contents
1
1.1
1.2
1.3
Typical Applications ...................................................... 2
Driver Support .......................................................................... 2
Part Numbers ............................................................................ 2
USB Compliant .......................................................................... 3
2
3
3.1
3.2
3.3
FT260 Block Diagram .................................................... 4
Device Pin Out and Signal Description .......................... 7
WQFN-28 Package Pin Out ........................................................ 7
TSSOP-28 Package Pin Out ....................................................... 8
Pin Description.......................................................................... 9
4
4.1
4.2
Function Description ................................................... 12
Key Features ........................................................................... 12
Functional Block Descriptions ................................................. 13
5
5.1
5.2
FT260 Configuration and Bus Interfaces ..................... 17
Device Interface Configuration ............................................... 17
I
2
C Bus Interface .................................................................... 18
I
2
C Pin Definition ........................................................................................ 18
I
2
C Bus Protocol .......................................................................................... 18
I
2
C Slave Address ....................................................................................... 20
I
2
C Timing ................................................................................................. 20
5.2.1
5.2.2
5.2.3
5.2.4
5.3
5.3.1
5.3.2
5.3.3
5.3.4
UART Interface ....................................................................... 22
UART Pin Definition ..................................................................................... 24
UART Bus Protocol ...................................................................................... 24
UART Flow Control ...................................................................................... 26
UART Timing .............................................................................................. 26
5.4
GPIOs ..................................................................................... 27
6
6.1
6.2
6.3
6.4
Devices Characteristics and Ratings ........................... 28
Absolute Maximum Ratings ..................................................... 28
ESD and Latch-up Specifications ............................................. 28
DC Characteristics ................................................................... 29
USB Characteristics ................................................................. 33
7
7.1
7.2
FT260 Power Configurations ....................................... 34
USB Bus Powered Configuration ............................................ 34
Self Powered Configuration with 5V Source Input .................. 35
Copyright © Future Technology Devices International Limited
5
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