UMFT220XB-01 FTDI, UMFT220XB-01 Datasheet - Page 7

• Manufacturer Part Number: UMFT220XB-01
• Description: Interface Development Tools USB to SPI/FT1248 Breakout Brd FT220X
• Manufacturer: FTDI
• Type: USB to Serialr

Specifications of UMFT220XB-01

• Rohs: yes
• Product: Development Modules
• Tool Is For Evaluation Of: FT220XQ
• Interface Type: USB
• Operating Supply Voltage: 3.3 V
• Dimensions: 45.5 mm x 14.95 mm x 5.2 mm
• Tradename: X-Chip

CBUS Signal
BCD_Charger#
BitBang_WR#
BCD_Charger
BitBang_RD#
VBUS_Sense
Time_Stamp
TX&RXLED#
Table 4.6 CBUS Configuration Control
For further information on CBUS options, please refer to the relevant x-chip datasheet.
* PWREN# must be used with a 10kΩ resistor pull up.
**When in USB suspend mode the outputs clocks are also suspended.
***The number of CBUS pins available varies for the three different modules.
4.7
The IC on each of the modules contains an embedded MTP memory that can be used to specify the
functions of the CBUS pins, the current drive on each signal pin, current limit for the USB bus and the
descriptors of the device. For details on using the MTP ROM/EEPROM programming utility FT_PROG,
please see the
When programming the MT memory please note:
CLK24MHz
CLK12MHz
I2C_TXE#
I2C_RXF#
CLK6MHz
Option
SLEEP#
i) The Max Bus Power setting of the MTP ROM should specify the maximum current to be drawn from
GPIO
the USB host/hub when enumerated. For high-powered USB devices the current limit when
enumerated is between 100mA and 500mA, for low-powered USB devices the current limit is
100mA.
Configuring the MTP ROM
FT_PROG User Guide.
Available On CBUS Pin***
CBUS0, CBUS1, CBUS2, CBUS3
CBUS0, CBUS1, CBUS2, CBUS3
CBUS0, CBUS1, CBUS2, CBUS3
CBUS0, CBUS1, CBUS2, CBUS3
CBUS0, CBUS1, CBUS2, CBUS3
CBUS0, CBUS1, CBUS2, CBUS3
CBUS0, CBUS1, CBUS2, CBUS3
CBUS0, CBUS1, CBUS2, CBUS3
CBUS0, CBUS1, CBUS2, CBUS3
CBUS0, CBUS1, CBUS2, CBUS3
CBUS0, CBUS1, CBUS2, CBUS3
CBUS0, CBUS1, CBUS2, CBUS3
CBUS0, CBUS1, CBUS2, CBUS3
CBUS0, CBUS1, CBUS2, CBUS3
UMFT201XB, UMFT220XB and UMFT230XB Datasheet
Copyright © 2012 Future Technology Devices International Limited
LED drive – pulses low when transmitting or receiving data via USB.
Goes low during USB suspend mode. Typically used to power down
an external TTL to RS232 level converter IC in USB to RS232
converter designs.
24 MHz Clock output.**
12 MHz Clock output.**
6 MHz Clock output.**
CBUS bit bang mode option. Allows up to 4 of the CBUS pins to be
used as general purpose I/O. Configured individually for CBUS0,
CBUS1, CBUS2 and CBUS3 in the internal MTP ROM. A separate
application note, AN232R-01, available from
(www.ftdichip.com) describes in more detail how to use CBUS bit
bang mode.
Battery charge Detect, indicates when the device is connected to a
dedicated battery charger host. Active high output.
Inverse of BCD Charger
Synchronous and asynchronous bit bang mode WR# strobe output.
Synchronous and asynchronous bit bang mode RD# strobe output.
Transmit buffer empty, used to indicate to I2C master device status
of the FT201X transmit buffer
Receive buffer full, used to indicate to I2C master device status of
FT201X receive buffer
Input to detect when VBUS is present.
Toggle signal which changes state each time a USB SOF is received
Document Reference No.: FT_000506
Description
Clearance No.: FTDI#
FTDI website
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