# PI49FCT3807BQEX

**Diodes Incorporated** · Clock Buffers, Drivers · QSOP-20-150mil

PI49FCT3807BQEX from Diodes Incorporated, in a QSOP-20-150mil. 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 | A | input | Clock input with TTL-compatible levels (VIH min 2.0V, VIL max 0.8V) that fans out to outputs B0-B9. |
| 2 | GND | power_in | Ground. |
| 3 | B0 | output | Buffered clock output 0, CMOS output with typical VOH 3.3V and VOL 0.3V. |
| 4 | VCC | power_in | 3.3V ±10% power supply. |
| 5 | B1 | output | Buffered clock output 1, CMOS output with typical VOH 3.3V and VOL 0.3V. |
| 6 | GND | power_in | Ground. |
| 7 | B2 | output | Buffered clock output 2, CMOS output with typical VOH 3.3V and VOL 0.3V. |
| 8 | VCC | power_in | 3.3V ±10% power supply. |
| 9 | B3 | output | Buffered clock output 3, CMOS output with typical VOH 3.3V and VOL 0.3V. |
| 10 | GND | power_in | Ground. |
| 11 | B4 | output | Buffered clock output 4, CMOS output with typical VOH 3.3V and VOL 0.3V. |
| 12 | B5 | output | Buffered clock output 5, CMOS output with typical VOH 3.3V and VOL 0.3V. |
| 13 | GND | power_in | Ground. |
| 14 | B6 | output | Buffered clock output 6, CMOS output with typical VOH 3.3V and VOL 0.3V. |
| 15 | VCC | power_in | 3.3V ±10% power supply. |
| 16 | B7 | output | Buffered clock output 7, CMOS output with typical VOH 3.3V and VOL 0.3V. |
| 17 | GND | power_in | Ground. |
| 18 | B8 | output | Buffered clock output 8, CMOS output with typical VOH 3.3V and VOL 0.3V. |
| 19 | B9 | output | Buffered clock output 9, CMOS output with typical VOH 3.3V and VOL 0.3V. |
| 20 | VCC | power_in | 3.3V ±10% power supply. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | QSOP-20-150mil |
| Category | Clock and Timing |
| Pins | 20 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output High Voltage | VOH | 2.4 | 3 |  | V | VCC = Min., VIN = VIL or VIH, IOH = -8mA | 2 |
| Output Low Voltage | VOL |  |  | 0.2 | V | VCC = Min., VIN = VIL or VIH, IOH = 0.1mA | 2 |
| Output Low Voltage | VOL |  | 0.2 | 0.4 | V | VCC = Min., VIN = VIL or VIH, IOH = 16mA | 2 |
| Output Low Voltage | VOL |  | 0.3 | 0.5 | V | VCC = Min., VIN = VIL or VIH, IOH = 24mA | 2 |
| Input High Voltage | VIH | 2 |  | 5.5 | V | Guaranteed Logic HIGH Level (Input pins) | 2 |
| Input Low Voltage | VIL | -0.5 |  | 0.8 | V | Guaranteed Logic LOW Level (Input pins) | 2 |
| Input High Current | IIH |  |  | 1 | μA | VCC = Max. VIN = VCC | 2 |
| Input Low Current | IIL |  |  | -1 | μA | VCC = Max. VIN = GND | 2 |
| Clamp Diode Voltage | VIK |  | -0.7 | -1.2 | V | VCC = Min., IIN = -18mA | 2 |
| Output HIGH Current | IOH | -35 | -60 | -110 | mA | VOUT = 1.5V, VIN = VIL or VIH, VCC = 3.3V | 2 |
| Output LOW Current | IOL | 50 | 90 | 200 | mA | VOUT = 1.5V, VIN = VIL or VIH, VCC = 3.3V | 2 |
| Short Circuit Current | IOS | -60 | -135 | -240 | mA | VCC = Max., VOUT = GND | 2 |
| Input Hysteresis | VH |  | 150 |  | mV |  | 2 |
| Quiescent Power Supply Current | ICC |  | 3 | 30 | μA | VCC = Max. VIN = GND or VCC | 3 |
| Supply Current per Input @ TTL HIGH | ΔICC |  | 2 | 300 | μA | VCC = Max. VIN = VCC - 0.6V | 3 |
| Input Capacitance | CIN |  | 4.5 | 6 | pF | VIN = 0V, TA = 25°C, f = 1 MHz | 3 |
| Output Capacitance | COUT |  | 5.5 | 8 | pF | VOUT = 0V, TA = 25°C, f = 1 MHz | 3 |
| Propagation Delay A to BN | tPLH/tPHL | 1.5 |  | 3.8 | ns | CL = 15pF, RL = 500Ω, grade B | 3 |
| Skew between two outputs of same package | tSK(O) |  |  | 0.5 | ns | grade B | 3 |
| Skew between opposite transitions of the same output | tSK(P) |  |  | 0.35 | ns | grade B | 3 |
| Skew between outputs of different packages | tSK(T) |  |  | 0.75 | ns | same power supply, temp. and speed grade, grade B | 3 |
| Operating Temperature | TA | -40 |  | 85 | °C |  | 2 |
| Storage Temperature |  | -65 |  | 150 | °C |  | 2 |
| Ambient Temperature with Power Applied |  | -40 |  | 85 | °C |  | 2 |
| Supply Voltage to Ground Potential (Inputs & VCC Only) |  | -0.5 |  | 7 | V |  | 2 |
| Supply Voltage to Ground Potential (Outputs & D/O Only) |  | -0.5 |  | 7 | V |  | 2 |
| DC Input Voltage |  | -0.5 |  | 7 | V |  | 2 |
| DC Output Current |  |  |  | 120 | mA |  | 2 |
| Power Dissipation |  |  |  | 0.5 | W |  | 2 |

## CAD (KiCad official)

- Symbol: `PI49FCT3807BQEX`
- Footprint: `Package_SO:QSOP-20_3.9x8.7mm_P0.635mm`
- 3D model: QSOP-20-150mil (KiCad packages3D, STEP)
- 3D model files: `pi49fct3807bqex-etched.step` / `pi49fct3807bqex-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pi49fct3807bqex.step` / `pi49fct3807bqex.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Diodes Incorporated datasheet](docs/pi49fct3807bqex-datasheet.pdf) (8 pp, sha256 `61f6e98ea886c3ba`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/pi49fct3807bqex-datasheet.pdf)