# 74HC14DMT

**HGSEMI** · Inverters · TSSOP-14

74HC14DMT from HGSEMI, in a TSSOP-14. 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 | A1 | input | Schmitt-trigger input of inverter 1; the input voltage must stay between 0 and VCC per the recommended operating conditions. |
| 2 | Y1 | output | Inverted output of gate 1, the logic complement of A1 per the truth table, with output current limited to ±25 mA. |
| 3 | A2 | input | Schmitt-trigger input of inverter 2; the input voltage must stay between 0 and VCC per the recommended operating conditions. |
| 4 | Y2 | output | Inverted output of gate 2, the logic complement of A2 per the truth table, with output current limited to ±25 mA. |
| 5 | A3 | input | Schmitt-trigger input of inverter 3; the input voltage must stay between 0 and VCC per the recommended operating conditions. |
| 6 | Y3 | output | Inverted output of gate 3, the logic complement of A3 per the truth table, with output current limited to ±25 mA. |
| 7 | GND | power_in | Ground reference for the device; VCC or GND current is limited to ±50 mA. |
| 8 | Y4 | output | Inverted output of gate 4, the logic complement of A4 per the truth table, with output current limited to ±25 mA. |
| 9 | A4 | input | Schmitt-trigger input of inverter 4; the input voltage must stay between 0 and VCC per the recommended operating conditions. |
| 10 | Y5 | output | Inverted output of gate 5, the logic complement of A5 per the truth table, with output current limited to ±25 mA. |
| 11 | A5 | input | Schmitt-trigger input of inverter 5; the input voltage must stay between 0 and VCC per the recommended operating conditions. |
| 12 | Y6 | output | Inverted output of gate 6, the logic complement of A6 per the truth table, with output current limited to ±25 mA. |
| 13 | A6 | input | Schmitt-trigger input of inverter 6; the input voltage must stay between 0 and VCC per the recommended operating conditions. |
| 14 | VCC | power_in | Positive supply with a recommended operating range of 2 V to 6 V and an absolute maximum of 6.5 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | TSSOP-14 |
| Category | Logic |
| Pins | 14 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating voltage | VCC |  |  | 6.5 | V |  | 3 |
| Input/output voltage | VIN, VOUT | -0.3 |  |  | V |  | 3 |
| Output current | IOUT | -25 |  | 25 | mA |  | 3 |
| VCC or GND current | ICC | -50 |  | 50 | mA |  | 3 |
| Power dissipation | PD |  |  | 500 | mW |  | 3 |
| Operating temperature | TA | -40 |  | 85 | ℃ |  | 3 |
| Storage temperature | TS | -65 |  | 150 | ℃ |  | 3 |
| Lead soldering temperature | TL |  |  | 260 | ℃ | 10 s | 3 |
| Operating voltage | VCC | 2 | 5 | 6 | V |  | 3 |
| Input/output voltage | VIN, VOUT | 0 |  |  | V |  | 3 |
| Operating temperature | TA | -40 |  | 85 | ℃ |  | 3 |
| High-level output voltage | VOH | 1.9 | 1.99 |  | V | VI=VT-min, /IOUT/≤20μA, VCC=2.0V | 4 |
| High-level output voltage | VOH | 4.4 | 4.49 |  | V | VI=VT-min, /IOUT/≤20μA, VCC=4.5V | 4 |
| High-level output voltage | VOH | 5.9 | 5.99 |  | V | VI=VT-min, /IOUT/≤20μA, VCC=6.0V | 4 |
| High-level output voltage | VOH | 3.7 | 4.3 |  | V | VI=VT-min, /IOUT/≤4.0mA, VCC=4.5V | 4 |
| High-level output voltage | VOH | 5.2 | 5.8 |  | V | VI=VT-min, /IOUT/≤5.2mA, VCC=6.0V | 4 |
| Low-level output voltage | VOL |  | 0.01 | 0.1 | V | VI=VT+max, /IOUT/≤20μA, VCC=2.0V | 4 |
| Low-level output voltage | VOL |  | 0.1 | 0.25 | V | VI=VT+max, /IOUT/≤4.0mA, VCC=4.5V | 4 |
| Input current | IIN |  | 0.01 | 1 | uA | VI=VCC or GND, VCC=6.0V | 4 |
| Operating current | ICC |  | 0.5 | 20 | uA | VI=VCC or GND, IOUT=0μA, VCC=6.0V | 4 |
| Propagation delay A to Y (high-to-low) | tPHL |  |  | 25 | ns | CL=47pF, VCC=5.0V, tr=tf≤20ns | 4 |
| Propagation delay A to Y (low-to-high) | tPLH |  |  | 30 | ns | CL=47pF, VCC=5.0V, tr=tf≤20ns | 4 |
| Output rise time | tTLH |  |  | 25 | ns | CL=47pF, VCC=5.0V, tr=tf≤20ns | 4 |
| Output fall time | tTHL |  |  | 25 | ns | CL=47pF, VCC=5.0V, tr=tf≤20ns | 4 |

## CAD (KiCad official)

- Symbol: `74HC14DMT`
- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`
- 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files: `74hc14dmt-etched.step` / `74hc14dmt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `74hc14dmt.step` / `74hc14dmt.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HGSEMI datasheet](docs/74hc14dmt-datasheet.pdf) (9 pp, sha256 `1b579cf9c40cda11`, retrieved 2026-10-28, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/74hc14dmt-datasheet.pdf)