FT201XQ-R FTDI, FT201XQ-R Datasheet - Page 37

• Manufacturer Part Number: FT201XQ-R
• Description: USB Interface IC USB to I2C IC QFN-16
• Manufacturer: FTDI

Specifications of FT201XQ-R

• Rohs: yes
• Product: USB 2.0
• Data Rate: 12 Mbps, 480 Mbps
• Interface Type: I2C, USB
• Operating Supply Voltage: 2.97 V to 5.5 V
• Operating Supply Current: 6.4 mA to 8.65 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-16
• Tradename: X-Chip

10.2.2
In the FT201X device, it is possible to program the MTP memory over its I
interface which is used in the normal application of the FT201X and would normally be connected to the
I
used to access the MTP memory in the FT201X over the same I
read and write locations in the MTP memory. No additional hardware, connections or programming
voltages are required.
Two examples where it may be desired to use the I
given below. In some cases, the application may use both of these possibilities.
The information in the rest of this chapter can be used to implement the storing and reading of
application data in the user area as in example 1 above. Example 2 requires details of the configuration
data stored in the MTP memory. Further details can be found in the following application note:
http://www.ftdichip.com/Support/Documents/AppNotes/AN_201_FT-
X%20MTP%20Memory%20Configuration.pdf
10.3 Memory Map
The FT-X family MTP memory has various areas which come under three main categories:
Figure 10.1: Simplified memory map for the FT201X
2
C master implemented in a microcontroller (MCU) or FPGA. However, special commands can also be
1. To store and retrieve application specific data such as calibration constants in the user area (e.g.
2. To read and write the configuration data (e.g. custom VID, PID, description strings or CBUS



if the overall application was an analog measurement system). This can avoid the need for an
extra EEPROM chip on the application board.
signal selection to enable signals for battery charging etc) without a USB host. This could allow an
MCU/FPGA to configure the FT201X during production testing of the finished device or even when
in use in the field.
User Memory Area
Configuration Memory Area (writable)
Configuration Memory Area (non-writable)
Programming the MTP memory over I
Copyright © 2013 Future Technology Devices International Limited
Accessible via USB, I
Accessible via USB, I
Accessible via USB, I
Accessible via USB, I
Configuration Memory Area
Configuration Memory Area
Configuration Memory Area
Memory Area Description
User Memory Area 2
User Memory Area 1
Cannot be written
2
2
2
2
C and FT1248
C and FT1248
C and FT1248
C and FT1248
2
C interface to write and read the MTP Memory are
FT201X USB I2C SLAVE IC Datasheet
Document No.: FT_000627 Clearance No.: FTDI# 264
2
C connection, allowing the MCU/FPGA to
Word Address
2
0x3FF - 0x80
C
0x7E - 0x50
0x4E - 0x40
0x3E - 0x12
0x10 - 0x00
2
C interface. This is the same
Version 1.3
37