

Overview
The FT240XQ-R is a USB Converter made by FTDI in a QFN-24-EP(4x4) package with 25 pins. -40℃~+85℃ 125uA 3.3V~5V 8mA USB 2.0 USB to FIFO QFN-24-EP(4x4) USB Converters ROHS.
PCBKit's library has its KiCad symbol (Interface_USB:FT240XQ, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm, from KiCad's library), ready for a KiCad board. 3 are in stock at JLCPCB (part C132151). 3 open-source boards in 2 repositories on GitHub use it.
Symbol
Footprint
Parameters
7- Applications Function
- USB to FIFO
- Current - Supply
- 8mA
- Features
- FIFO buffer;Wake-up function;Built-in clock generator;Power-on reset
- Operating Temperature
- -40℃~+85℃
- Quiescent Supply Current
- 125uA
- USB Protocol
- USB 2.0
- Voltage - Supply
- 3.3V~5V
Order codes
1- FT240XQ-RLCSC C132151
Pinout
25| Pin | Name | Type |
|---|---|---|
| 1 | DATA1 | Input/output |
| 2 | DATA7 | Input/output |
| 3 | GND | Power in |
| 4 | DATA5 | Input/output |
| 5 | DATA6 | Input/output |
| 6 | DATA3 | Input/output |
| 7 | SI/WU | Input |
| 8 | RD | Input |
| 9 | WR | Input |
| 10 | USBDP | Input/output |
| 11 | USBDM | Input/output |
| 12 | 3V3OUT | Power out |
| 13 | RESET | Input |
| 14 | VCORE | Power out |
| 15 | VCC | Power in |
| 16 | GND | Passive |
| 17 | TXE | Output |
| 18 | RXF | Output |
| 19 | CBUS6 | Input/output |
| 20 | CBUS5 | Input/output |
| 21 | DATA0 | Input/output |
| 22 | DATA4 | Input/output |
| 23 | DATA2 | Input/output |
| 24 | VCCIO | Power in |
| 25 | GND | Passive |
Open-source boards using it
All 3- 2 layers34.8 × 12.2 mm

- 2 layers107.1 × 426.9 mm

- 2 layers21.8 × 16.3 mm

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<iframe src="https://pcbkit.io/embed/parts/ftdi/FT240XQ-R" title="FT240XQ-R in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ftdi/FT240XQ-R.jpg" alt="FT240XQ-R" width="1200" height="900">[](https://pcbkit.io/parts/ftdi/FT240XQ-R)Questions
Is there a KiCad symbol and footprint for the FT240XQ-R?
Yes. The symbol is Interface_USB:FT240XQ and the footprint Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the FT240XQ-R?
QFN-24-EP(4x4), with 25 pins. Its footprint is drawn on this page.
Where is the FT240XQ-R datasheet?
FTDI publishes it: the Datasheet link on this page opens it.
Where can I order the FT240XQ-R?
JLCPCB lists it as part C132151, with 3 in stock; the sellers' links on this page open their listings.
What can replace the FT240XQ-R?
Parts like it in the library: the CP2102N-A02-GQFN24R by Silicon Labs, the CH9102F by WCH (Nanjing Qinheng Microelectronics), the CP2104-F03-GMR by Silicon Labs and the USB3343-CP by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the FT240XQ-R?
3 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8CP2102N-A02-GQFN24R
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QFN-24-EP(4x4)-40℃~+85℃ 1.8V、2.5V、3.3V、5V 3mA 4Mbps 90uA USB 2.0 USB to UART QFN-24-EP(4x4) USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB ConvertersCP2104-F03-GMR
QFN-24-EP(4x4)-40℃~+85℃ 1.8V、3V~3.6V 100uA 17mA 2Mbps USB 2.0 USB to UART QFN-24-EP(4x4) USB Converters ROHSSilicon LabsUSB ConvertersUSB3343-CP
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QFN-24-EP(4x4)-40℃~+85℃ 32uA 35mA 3V~5.5V Transceiver USB 2.0 QFN-24-EP(4x4) USB Converters ROHSMicrochip TechnologyUSB ConvertersCP2112-F03-GMR
QFN-24-EP(4x4)-40℃~+85℃ 1.8V、3V~3.6V 12Mbps 130uA 15mA USB 2.0 USB to SMBus QFN-24-EP(4x4) USB Converters ROHSSilicon LabsUSB ConvertersCP2112-F03-GM
QFN-24(4x4)-40℃~+85℃ 1.8V、3V~3.6V 12Mbps 130uA 15mA USB 2.0 USB to SMBus QFN-24(4x4) USB Converters ROHSSilicon LabsUSB ConvertersCP2102N-A02-GQFN24
QFN-24-EP(4x4)-40℃~+85℃@(Ta) 1.3uA 13.7mA 3V~3.6V USB 2.0 USB to UART QFN-24-EP(4x4) USB Converters ROHSSilicon LabsUSB Converters