component
FT260Q-T
Public Made by Adomby adom
FTDI USB ICs, WQFN-28-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownFT260Q-T
FTDI · USB ICs · WQFN-28-EP(5x5)
FT260Q-T from FTDI, in a WQFN-28-EP(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | DEBUGGER | bidirectional | Debugging pin that should be reserved and tied high. |
| 2 | STEST_RSTN | input | Active-low chip reset input for test mode; should be reserved and tied high. |
| 3 | RESETN | input | Active-low chip reset input; can be tied high if external reset function is not required. |
| 4 | DCNF0 | input | Device interface configuration selection bit-0 for the HID interface selection (see Section 5.1). |
| 5 | DCNF1 | input | Device interface configuration selection bit-1 for the HID interface selection (see Section 5.1). |
| 6 | VCCIO | power_in | +3.3V/2.5V/1.8V supply voltage for all I/O ports; connect to VOUT3V3 when I/O ports work at 3.3V. |
| 7 | DIO0 | bidirectional | Digital I/O pin 0 configurable via eFUSE or EEPROM as TX_ACTIVE (default UART transmit-active indicator), TX_LED or GPIOA. |
| 8 | DIO1 | bidirectional | Digital I/O pin 1, default GPIOB, or RTSN request-to-send handshake enabled via USB command for the UART. |
| 9 | DIO2 | bidirectional | Digital I/O pin 2, default GPIOE, or CTSN clear-to-send handshake enabled via USB command for the UART. |
| 10 | DIO3 | bidirectional | Digital I/O pin 3, RXD UART receive data input by default when UART is selected via DCNF1/DCNF0, otherwise GPIOC. |
| 11 | DIO4 | bidirectional | Digital I/O pin 4, TXD UART transmit data output by default when UART is selected via DCNF1/DCNF0, otherwise GPIOD. |
| 12 | DIO5 | bidirectional | Digital I/O pin 5, default I2C SCL open-drain serial clock, or GPIO0 enabled via USB command. |
| 13 | DIO6 | bidirectional | Digital I/O pin 6, default I2C SDA open-drain serial data, or GPIO1 enabled via USB command. |
| 14 | DIO7 | bidirectional | Digital I/O pin 7 configurable via eFUSE or EEPROM as SUSPOUT_N (default, active-low USB suspend indicator), PWREN_N or GPIO2. |
| 15 | DIO8 | bidirectional | Digital I/O pin 8, default INTRIN external interrupt input, or WAKEUP USB remote wakeup input, or GPIO3. |
| 16 | DIO9 | bidirectional | Digital I/O pin 9, default GPIOF, or DTRN data-terminal-ready enabled via USB command for the UART. |
| 17 | DIO10 | bidirectional | Digital I/O pin 10, default GPIO4, or DCD data carrier detect enabled via USB command for the UART. |
| 18 | DIO11 | bidirectional | Digital I/O pin 11, default GPIO5, or RI ring indicator enabled via USB command, usable as an alternative USB wakeup source. |
| 19 | GND | power_in | Ground. |
| 20 | DM | bidirectional | USB peripheral bidirectional DM line. |
| 21 | DP | bidirectional | USB peripheral bidirectional DP line. |
| 22 | VOUT3V3 | power_out | +3.3V voltage output that may power VCCIO; when VCCIN is supplied with 3.3V it is a power input connected to pin 23. |
| 23 | VCCIN | power_in | +5.0V (or 3.3V) supply input to the embedded regulator; with 3.3V, VOUT3V3 and VCCIO must also be driven from that 3.3V source. |
| 24 | AGND | power_in | Analog ground. |
| 25 | FSOURCE | power_in | +3.8V supply for programming the embedded eFUSE; keep floating or at 0V when not programming. |
| 26 | VBUS_DET | input | VBUS detection input, +5.0V tolerant. |
| 27 | DIO12 | bidirectional | Digital I/O pin 12 configurable via eFUSE or EEPROM as BCD_DET (default battery charger detection output), RX_LED, PWREN_N or GPIOG. |
| 28 | DIO13 | bidirectional | Digital I/O pin 13, default GPIOH, or DSRN data-set-ready enabled via USB command for the UART. |
| 29 | EP | power_in | Centre pad internally connected to GND; connect to GND with no signal tracking on the top layer under it. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | FTDI |
| Package | WQFN-28-EP(5x5) |
| Category | Interface ICs |
| Pins | 29 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VCCIN Operating Supply Voltage (5V) | VCC1 | 4.5 | 5 | 5.5 | V | VCCIN is supplied with 5V | 29 |
| VCCIN Operating Supply Voltage (3.3V) | VCC1 | 2.97 | 3.3 | 3.63 | V | VCCIN is supplied with 3.3V | 29 |
| VCCIO Operating Supply Voltage (3.3V) | VCC2 | 2.97 | 3.3 | 3.63 | V | VCCIO is supplied with 3.3V | 29 |
| VCCIO Operating Supply Voltage (2.5V) | VCC2 | 2.25 | 2.5 | 2.75 | V | VCCIO is supplied with 2.5V | 29 |
| VCCIO Operating Supply Voltage (1.8V) | VCC2 | 1.62 | 1.8 | 1.98 | V | VCCIO is supplied with 1.8V | 29 |
| 3.3V regulator output | 3V3 | 2.97 | 3.3 | 3.63 | V | VCCIN must be greater than 3V3 otherwise VOUT3V3 is an input which must be driven with 3.3V | 29 |
| eFUSE Blowing Supply Voltage | VFSOURCE | 3.4 | 3.8 | 4.2 | V | 29 | |
| Input pull-up resistance (VCCIO=3.3V) | Rpu | 40 | 75 | 190 | KΩ | Vin = 0 | 30 |
| Input pull-down resistance (VCCIO=3.3V) | Rpd | 40 | 75 | 190 | KΩ | Vin =VCCIO | 30 |
| Input Leakage Current (VCCIO=3.3V) | Iin | -10 | 1 | 10 | μA | Vin = 0 | 30 |
| Tri-state output leakage current (VCCIO=3.3V) | Ioz | -10 | 1 | 10 | μA | Vin = 5.5V or 0 | 30 |
| Output Voltage Low (VCCIO=3.3V) | Vol | 0 | 0.4 | V | Iol = +/-2mA | 30 | |
| Output Voltage High (VCCIO=3.3V) | Voh | 2.97 | V | Ioh = +/-2mA | 30 | ||
| Input low Switching Threshold (VCCIO=3.3V) | Vil | 0.8 | V | LVTTL | 30 | ||
| Input High Switching Threshold (VCCIO=3.3V) | Vih | 2 | V | LVTTL | 30 | ||
| Input low Switching Threshold (VCCIO=2.5V) | Vil | 0.8 | V | LVTTL | 31 | ||
| Input High Switching Threshold (VCCIO=2.5V) | Vih | 1.7 | V | LVTTL | 31 | ||
| Input low Switching Threshold (VCCIO=1.8V) | Vil | 0.63 | V | LVTTL | 32 | ||
| Input High Switching Threshold (VCCIO=1.8V) | Vih | 1.17 | V | LVTTL | 32 | ||
| USB output impedance | URo | 3.5 | 7 | 14 | Ω | 33 | |
| USB internal pull up resistance | URpu | 0.976 | 1.24 | 1.574 | Ω | 33 | |
| USB high level output on DP and DM | UVOH | 2.8 | V | 33 | |||
| USB low level output on DP and DM | UVOL | 0.3 | V | 33 | |||
| Rise Time on DP/DM | UTrise | 4 | 10 | 20 | ns | 33 | |
| Fall Time on DP/DM | UTfall | 4 | 10 | 20 | ns | 33 | |
| USB cross point | UVcr | 1.3 | 2 | V | 33 | ||
| USB single-ended receiver threshold | UVth | 0.8 | 2 | V | 33 | ||
| Storage Temperature | -65 | 150 | °C | 28 | |||
| Ambient Operating Temperature (Power Applied) | -40 | 85 | °C | 28 | |||
| VCCIN Supply Voltage | VCCIN | -0.3 | 5.5 | V | 28 | ||
| VCCIO IO Voltage | VCCIO | -0.3 | 4 | V | 28 | ||
| DC Input Voltage - USBDP and USBDM | -0.5 | 3.63 | V | 28 | |||
| DC Output Current - Outputs | 100 | mA | DC output current on VOUT3V3; as source for other components only 75mA or less | 28 | |||
| Normal Operating Supply Current 12MHz | Inormal | 9.6 | mA | Normal Operation at 12MHz | 29 | ||
| Normal Operating Supply Current 24MHz | Inormal | 14.5 | mA | Normal Operation at 24MHz | 29 | ||
| Normal Operating Supply Current 48MHz | Inormal | 23.6 | mA | Normal Operation at 48MHz | 29 | ||
| Idle Supply Current | Iidle | 4.17 | mA | IDLE Operation at 30KHz | 29 | ||
| Suspend Supply Current | Isusp | 356 | μA | USB Suspend | 29 |
CAD (KiCad official)
- Symbol:
FT260Q-T - Footprint:
Package_DFN_QFN:QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm - 3D model: WQFN-28-EP(5x5) (KiCad packages3D, STEP)
- 3D model files:
ft260q-t-etched.step/ft260q-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ft260q-t.step/ft260q-t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: FTDI datasheet (61 pp, sha256
30c3991b8697a00b, retrieved 2026-10-30, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).