FT260S-U Datasheet, PDF (16/61 Pages) Future Technology Devices International Ltd. – HID-class USB to UART/I2C Bridge IC

FT260 HID-CLASS USB TO UART/I2C BRIDGE IC
Version 1.1
Document No.: FT_001272 Clearance No.: FTDI#484
 DIO8 (pin 15 @ WQFN28) can be configured as WAKEUP, GPIO3
 DIO9 (pin 16 @ WQFN28) will be set as GPIOF function by default
 DIO10 (pin 17 @ WQFN28) will be set as GPIO4 function by default
 DIO11 (pin 18 @ WQFN28) will be set as GPIO5 function by default
 DIO12 (pin 27 @ WQFN28) can be configured as BCD_DET, RX_LED, PWREN_N and GPIOG
 DIO13 (pin 28 @ WQFN28) will be set as GPIOH function by default
eFUSE Controller + Internal eFUSE. The internal eFUSE (electrical poly fuse) provides storage for the
Vendor Specific Parameters. These Vendor specific Parameters are for the purpose of cost-effective
customization. When FT260 is powered up, all the parameters will be automatically loaded into and taken
effective before operation. The embedded eFUSE can be programmed over USB with an external voltage
requirement on the pin FSOURCE with 3.8V power source. These parameters can be programmed using
the FTDI utility software called FT_PROG, which can be downloaded from FTDI Utilities on the FTDI
website (http://www.ftdichip.com/Support/Utilities.htm#FT_Prog).
Vendor Specific Parameters in eFUSE include:
 USB Vendor ID (VID), Product ID (PID), power type selection
 DIO0, DIO7, DIO12 function selection
 Digital pins driving strength selection (4mA, 8mA, 12mA, 16mA)
 HID-over-I²C Slave Address
 HID-over-I²C Interrupt type
 HID-over-I²C SET_/GET_IDLE, SET_/GET_PROTOCOL, SET_POWER enable control
For further details refer to section 9.1.
5V-3.3V-1.8V LDO regulator. The LDO will regulate out 2 reference voltages for use within the FT260.
The +3.3V LDO regulator generates the +3.3V reference voltage for driving the USB transceiver cell
output buffers. It requires an external decoupling capacitor to be attached to the VOUT3V3 regulator
output pin. Another +1.8V LDO regulator generates the +1.8V reference voltage for driving the internal
core of the IC.
POR RESET Generator. POR is the integrated Power on Reset Generator Cell providing a reliable power-
on reset to the device internal circuitry at power up. There is also a RESETN input pin allowing an
external device to reset the FT260. RESETN can be tied to VCCIO (+3.3v) if not being used.
Embedded BCD Detection. Supports Battery Charger Detection. When the pin DIO12 is set as
BCD_DET function, it will be active if the device is connected to a dedicated charger instead of a standard
USB Host.
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