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FT900 Datasheet(PDF) 46 Page - Future Technology Devices International Ltd.

Part # FT900
Description  The FT900 series includes the FT900,FT901, FT902 and FT903 which are complete System-On-Chip 32-bit RISC microcontrollers for embedded applications featuring a high level of integration and low powerconsumption
PDF  58 Pages
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Manufacturer  FTDI [Future Technology Devices International Ltd.]
Direct Link  http://www.ftdichip.com
Logo FTDI - Future Technology Devices International Ltd.

FT900 Datasheet(HTML) 46 Page - Future Technology Devices International Ltd.

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Copyright © 2014 Future Technology Devices International Limited
46
FT900/1/2/3 Embedded Microcontroller Datasheet
Version 1.0
Document No.: FT_000965 Clearance No.: FTDI#421
Slew rate bit
Enable output driver
Data output
Output driver capability
Data input
Schmitt trigger
Keeper
PU
PD
Keeper enable bit
Pull-down enable bit
Pull-up enable bit
Rpu
Rpd
ESD
ESD
VDDIO
VDDIO
PIN
FT900 I/O
Figure 6-5 Standard I/O pin configuration
6.4
USB2.0 Peripheral and Host Interface
The example diagram in Figure 6-6 shows the FT900 series supporting one USB2.0 host port
and one USB2.0 device port, which makes FT900 system data transfer easier via USB adapter.
USB2.0 Device
Port
VBUS_DTC/GPIO3 (60)
VBUS
D_DM (69)
D_DP (70)
DM
DP
GND
DRREF (71)
R
R
USB2.0 Host Port
FT900
USB
(59) PSW_N/GPIO2
VBUS
H_DM (72)
H_DP (73)
DM
DP
GND
HRREF (75)
R
(58) OC_N/GPIO1
(57) VBUS_DISCHG/
GPIO0
VBUS
R
R
VCC3V3
R
VBUS
Figure 6-6 USB2.0 ports connection
The FT900 System shall provide I/O power (+3.3V supply) on VUSB3V3 and core power
(+1.2V supply) on VCC1V2 for the USB2.0 peripheral / host controller. The internal band-gap
gets a reference voltage from DRREF or HRREF with an external reference resistor R (12 KΩ
±1%) respective connected to GND.



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