# VNC2-48L1C-TRAY

**FTDI** · USB ICs · LQFP-48(7x7)

VNC2-48L1C-TRAY from FTDI, in a LQFP-48(7x7). 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 | GND | power_in | Device ground supply pin. |
| 2 | 3.3V VREGIN | power_in | +3.3V supply to the internal regulator. |
| 3 | 1.8V VCC PLL IN | power_in | +1.8V supply to the internal clock multiplier that requires a 100nF decoupling capacitor; on the 48-pin LQFP this pin is internally connected to VREG_OUT. |
| 4 | XTIN | input | Input to the 12MHz oscillator cell; connect the 12MHz crystal across pins 4 and 5, or if driven externally reference it to 1.8V VCC PLL IN. |
| 5 | XTOUT | output | Output from the 12MHz oscillator cell; connect the crystal across pins 4 and 5, and leave unconnected if XTIN is driven by an external source. |
| 6 | GND PLL | power_in | Device analogue ground supply for the internal clock multiplier. |
| 7 | VREG OUT | unconnected | Not connected (N/C) on the 48-pin LQFP package; the regulator output is internally tied to pin 3 in this package. |
| 8 | NC | unconnected | No connect for rev C (was TEST on rev A and B). |
| 9 | RESET# | input | Active-low input that can be driven by an external device to reset the VNC2; this is a 5V safe input. |
| 10 | PROG# | input | Asserting PROG# on its own enables programming mode; this is a 5V safe input. |
| 11 | IOBUS0 | bidirectional | Multiplexed GPIO pin with default function debug_if, which should not be reassigned from IOBUS0; it is a 5V safe input. |
| 12 | IOBUS1 | bidirectional | Multiplexed GPIO pin with default function pwm[1]; GPIO pins are 5V safe inputs. |
| 13 | IOBUS2 | bidirectional | Multiplexed GPIO pin with default function pwm[2]; GPIO pins are 5V safe inputs. |
| 14 | IOBUS3 | bidirectional | Multiplexed GPIO pin with default function pwm[3]; GPIO pins are 5V safe inputs. |
| 15 | IOBUS4 | bidirectional | Multiplexed GPIO pin with default function spi_s0_clk; GPIO pins are 5V safe inputs. |
| 16 | IOBUS5 | bidirectional | Multiplexed GPIO pin with default function spi_s0_mosi; GPIO pins are 5V safe inputs. |
| 17 | VCCIO | power_in | +3.3V supply to the I/O interface pins (IOBUS); leaving VCCIO unconnected will lead to unpredictable operation on the interface pins. |
| 18 | IOBUS6 | bidirectional | Multiplexed GPIO pin with default function spi_s0_miso; GPIO pins are 5V safe inputs. |
| 19 | IOBUS7 | bidirectional | Multiplexed GPIO pin with default function spi_s0_ss#; GPIO pins are 5V safe inputs. |
| 20 | IOBUS8 | bidirectional | Multiplexed GPIO pin with default function spi_m_clk; GPIO pins are 5V safe inputs. |
| 21 | IOBUS9 | bidirectional | Multiplexed GPIO pin with default function spi_m_mosi; GPIO pins are 5V safe inputs. |
| 22 | IOBUS10 | bidirectional | Multiplexed GPIO pin with default function spi_m_miso; GPIO pins are 5V safe inputs. |
| 23 | IOBUS11 | bidirectional | Multiplexed GPIO pin with default function spi_m_ss_0#; GPIO pins are 5V safe inputs. |
| 24 | GND | power_in | Device ground supply pin. |
| 25 | USB1DP | bidirectional | USB host/slave port 1 data signal plus, with integrated pull-up/pull-down resistor. |
| 26 | USB1DM | bidirectional | USB host/slave port 1 data signal minus, with integrated pull-up/pull-down resistor. |
| 27 | GND | power_in | Device ground supply pin. |
| 28 | USB2DP | bidirectional | USB host/slave port 2 data signal plus, with integrated pull-up/pull-down resistor. |
| 29 | USB2DM | bidirectional | USB host/slave port 2 data signal minus, with integrated pull-up/pull-down resistor. |
| 30 | VCCIO | power_in | +3.3V supply to the I/O interface pins (IOBUS); leaving VCCIO unconnected will lead to unpredictable operation on the interface pins. |
| 31 | IOBUS12 | bidirectional | Multiplexed GPIO pin with default function uart_txd; GPIO pins are 5V safe inputs. |
| 32 | IOBUS13 | bidirectional | Multiplexed GPIO pin with default function uart_rxd; GPIO pins are 5V safe inputs. |
| 33 | IOBUS14 | bidirectional | Multiplexed GPIO pin with default function uart_rts#; GPIO pins are 5V safe inputs. |
| 34 | IOBUS15 | bidirectional | Multiplexed GPIO pin with default function uart_cts#; GPIO pins are 5V safe inputs. |
| 35 | IOBUS16 | bidirectional | Multiplexed GPIO pin with default function uart_dtr#; GPIO pins are 5V safe inputs. |
| 36 | IOBUS17 | bidirectional | Multiplexed GPIO pin with default function uart_dsr#; GPIO pins are 5V safe inputs. |
| 37 | IOBUS18 | bidirectional | Multiplexed GPIO pin with default function uart_dcd#; GPIO pins are 5V safe inputs. |
| 38 | IOBUS19 | bidirectional | Multiplexed GPIO pin with default function uart_ri#; GPIO pins are 5V safe inputs. |
| 39 | GND | power_in | Device ground supply pin. |
| 40 | VCCIO | power_in | +3.3V supply to the I/O interface pins (IOBUS); leaving VCCIO unconnected will lead to unpredictable operation on the interface pins. |
| 41 | IOBUS20 | bidirectional | Multiplexed GPIO pin with default function uart_tx_active; GPIO pins are 5V safe inputs. |
| 42 | IOBUS21 | bidirectional | Multiplexed GPIO pin with default function gpio[A5]; GPIO pins are 5V safe inputs. |
| 43 | IOBUS22 | bidirectional | Multiplexed GPIO pin with default function gpio[A6]; GPIO pins are 5V safe inputs. |
| 44 | IOBUS23 | bidirectional | Multiplexed GPIO pin with default function gpio[A7]; GPIO pins are 5V safe inputs. |
| 45 | IOBUS24 | bidirectional | Multiplexed GPIO pin with default function gpio[A0]; GPIO pins are 5V safe inputs. |
| 46 | IOBUS25 | bidirectional | Multiplexed GPIO pin with default function gpio[A1]; GPIO pins are 5V safe inputs. |
| 47 | IOBUS26 | bidirectional | Multiplexed GPIO pin with default function gpio[A2]; GPIO pins are 5V safe inputs. |
| 48 | IOBUS27 | bidirectional | Multiplexed GPIO pin with default function gpio[A3]; GPIO pins are 5V safe inputs. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | FTDI |
| Package | LQFP-48(7x7) |
| Category | Interface ICs |
| Pins | 48 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Storage Temperature |  | -65 |  | 150 | °C |  | 57 |
| Ambient Temperature (Power Applied) |  | -40 |  | 85 | °C |  | 57 |
| Vcc Supply Voltage | Vcc | 0 |  | 3.63 | V |  | 57 |
| VCC_IO | VCC_IO | 0 |  | 3.63 | V |  | 57 |
| VCC_PLL_IN | VCC_PLL_IN | 0 |  | 1.98 | V |  | 57 |
| DC Input Voltage - USBDP and USBDM |  | -0.5 |  |  | V |  | 57 |
| DC Input Voltage - XTIN |  | -0.5 |  |  | V |  | 57 |
| DC Input Voltage - High Impedance Bidirectional |  | -0.5 |  | 5 | V |  | 57 |
| DC Input Voltage - All other Inputs |  | -0.5 |  |  | V |  | 57 |
| DC Output Current - Outputs Default |  |  |  | 4 | mA | Default; drive configurable to 8/12/16 mA by firmware register | 57 |
| DC Output Current - Low Impedance Bidirectional Default |  |  |  | 4 | mA | Default; drive configurable to 8/12/16 mA by firmware register | 57 |
| Floor Life (Out of Bag) |  |  |  | 168 | Hours | At factory ambient (30°C / 60% RH), MSL Level 3 | 57 |
| Vcc1 VCC Operating Supply Voltage | Vcc1 | 1.62 | 1.8 | 1.98 | V | Ambient -40 to +125 °C (table header) | 57 |
| Vcc2 VCCIO Operating Supply Voltage | Vcc2 | 2.97 | 3.3 | 3.63 | V | Ambient -40 to +125 °C (table header) | 57 |
| VCC_PLL Operating Supply Voltage | VCC_PLL | 1.62 | 1.8 | 1.98 | V | Ambient -40 to +125 °C (table header) | 57 |
| Operating Supply Current (Normal Operation) | Icc1 |  | 25 |  | mA | 48MHz, Normal Operation | 57 |
| Operating Supply Current (Low Power Mode) | Icc2 |  | 16 |  | mA | 24MHz, Low Power Mode | 57 |
| Operating Supply Current (Lowest Power Mode) | Icc3 |  | 8 |  | mA | 12MHz, Lowest Power Mode | 57 |
| Operating Supply Current (USB Suspend) | Icc4 |  | 128 |  | µA | USB Suspend | 57 |
| Voh Output Voltage High | Voh | 2.4 |  |  | V | I source = 8mA | 58 |
| Vol Output Voltage Low | Vol |  |  | 0.4 | V | I sink = 8mA | 58 |
| Vin Input Switching Threshold | Vin |  | 1.5 |  | V |  | 58 |
| UVoh I/O Pins Static Output (High) | UVoh | 2.8 |  |  | V |  | 58 |
| UVol I/O Pins Static Output (Low) | UVol |  |  | 0.3 | V |  | 58 |
| UVse Single Ended Rx Threshold | UVse | 0.8 |  | 2 | V |  | 58 |
| UCom Differential Common Mode | UCom | 0.8 |  | 2.5 | V |  | 58 |
| UVdif Differential Input Sensitivity | UVdif | 0.2 |  |  | V |  | 58 |
| UDrvZ Driver Output Impedance | UDrvZ | 3 | 6 | 9 | Ohms |  | 58 |
| VCCK Power Supply of Internal Core Cells and I/O to Core Interface | VCCK | 1.62 | 1.8 | 1.98 | V | 1.8V power supply | 58 |
| VCC18IO Power Supply of 1.8V OSC Pad | VCC18IO | 1.62 | 1.8 | 1.98 | V | 1.8V power supply | 58 |
| TJ Operating Junction Temperature | TJ | -40 | 25 | 125 | °C |  | 58 |
| Input Leakage Current | Iin | -10 | 1 | 10 | µA | Iin = VCC18IO or 0V | 58 |
| Tri-state Output Leakage Current | Ioz | -10 | 1 | 10 | µA |  | 58 |
| Latch-up |  | -200 |  | 200 | mA | Printed as '> ± 200mA' (threshold) | 58 |

## CAD (KiCad official)

- Symbol: `VNC2-48L1C-TRAY`
- Footprint: `Package_QFP:LQFP-48_7x7mm_P0.5mm`
- 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)
- 3D model files: `vnc2-48l1c-tray-etched.step` / `vnc2-48l1c-tray-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `vnc2-48l1c-tray.step` / `vnc2-48l1c-tray.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [FTDI datasheet](docs/vnc2-48l1c-tray-datasheet.pdf) (74 pp, sha256 `1705489baccb3ff9`, retrieved 2026-10-28, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/vnc2-48l1c-tray-datasheet.pdf)