# MC74HC1G14DTT1G

**onsemi** · Inverters · TSOP-5

MC74HC1G14DTT1G from onsemi, in a TSOP-5. 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 | NC | unconnected | No connect pin; not internally connected per the pin assignment. |
| 2 | IN A | input | Schmitt-trigger inverter input; recommended input voltage 0.0 to VCC. |
| 3 | GND | power_in | Ground pin (0 V reference). |
| 4 | OUT Y | output | Inverter output; drives 2.0 mA (IOH = IOL) and is the logical inverse of IN A. |
| 5 | VCC | power_in | Positive supply; recommended operating range 2.0 V to 6.0 V (absolute maximum 7.0 V). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TSOP-5 |
| Category | Logic |
| Pins | 5 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| DC Supply Voltage | VCC | -0.5 |  | 7 | V |  | 2 |
| DC Input Voltage | VIN | -0.5 |  |  | V | upper limit printed as VCC + 0.5 V | 2 |
| DC Output Voltage | VOUT | -0.5 |  |  | V | upper limit printed as VCC + 0.5 V | 2 |
| DC Input Diode Current | IIK |  |  | 20 | mA |  | 2 |
| DC Output Diode Current | IOK |  |  | 20 | mA |  | 2 |
| DC Output Sink Current | IOUT |  |  | 12.5 | mA |  | 2 |
| DC Supply Current per Supply Pin | ICC |  |  | 25 | mA |  | 2 |
| Storage Temperature Range | TSTG | -65 |  | 150 | C |  | 2 |
| Lead Temperature | TL |  |  | 260 | C | 1 mm from case for 10 seconds | 2 |
| Junction Temperature Under Bias | TJ |  |  | 150 | C |  | 2 |
| ESD Withstand Voltage, Human Body Model | VESD | 2000 |  |  | V | Human Body Model (Note 2) | 2 |
| ESD Withstand Voltage, Machine Model | VESD | 200 |  |  | V | Machine Model (Note 3) | 2 |
| Latchup Performance | ILATCHUP | 500 |  |  | mA | above VCC and below GND at 125C (Note 5) | 2 |
| Power Dissipation in Still Air | PD |  |  | 200 | mW | SOT23-5/TSOP-5/SC59-5 at 85C | 2 |
| DC Supply Voltage | VCC | 2 |  | 6 | V |  | 2 |
| DC Input Voltage | VIN | 0 |  |  | V | upper limit printed as VCC | 2 |
| DC Output Voltage | VOUT | 0 |  |  | V | upper limit printed as VCC | 2 |
| Operating Temperature Range | TA | -55 |  | 125 | C |  | 2 |
| Positive Threshold Voltage | VT+ | 1.85 | 2 | 2.2 | V | VCC = 3.0 V, TA = 25C | 3 |
| Positive Threshold Voltage | VT+ | 2.86 | 3 | 3.15 | V | VCC = 4.5 V, TA = 25C | 3 |
| Positive Threshold Voltage | VT+ | 3.5 | 3.6 | 3.85 | V | VCC = 5.5 V, TA = 25C | 3 |
| Positive Threshold Voltage | VT+ |  |  | 2.2 | V | VCC = 3.0 V, TA = 85C | 3 |
| Positive Threshold Voltage | VT+ |  |  | 3.15 | V | VCC = 4.5 V, TA = 85C | 3 |
| Positive Threshold Voltage | VT+ |  |  | 3.85 | V | VCC = 5.5 V, TA = 85C | 3 |
| Negative Threshold Voltage | VT− | 0.9 | 1.5 | 1.65 | V | VCC = 3.0 V, TA = 25C | 3 |
| Negative Threshold Voltage | VT− | 1.35 | 2.3 | 2.46 | V | VCC = 4.5 V, TA = 25C | 3 |
| Negative Threshold Voltage | VT− | 1.65 | 2.9 | 3.05 | V | VCC = 5.5 V, TA = 25C | 3 |
| Negative Threshold Voltage | VT− | 0.9 |  |  | V | VCC = 3.0 V, TA = 85C | 3 |
| Negative Threshold Voltage | VT− | 1.35 |  |  | V | VCC = 4.5 V, TA = 85C | 3 |
| Negative Threshold Voltage | VT− | 1.65 |  |  | V | VCC = 5.5 V, TA = 85C | 3 |
| Hysteresis Voltage | VH | 0.3 | 0.57 | 1.2 | V | VCC = 3.0 V, TA = 25C | 3 |
| Hysteresis Voltage | VH | 0.4 | 0.67 | 1.4 | V | VCC = 4.5 V, TA = 25C | 3 |
| Hysteresis Voltage | VH | 0.5 | 0.74 | 1.6 | V | VCC = 5.5 V, TA = 25C | 3 |
| Hysteresis Voltage | VH | 0.3 |  | 1.2 | V | VCC = 3.0 V, TA = 85C | 3 |
| Hysteresis Voltage | VH | 0.4 |  | 1.4 | V | VCC = 4.5 V, TA = 85C | 3 |
| Hysteresis Voltage | VH | 0.5 |  | 1.6 | V | VCC = 5.5 V, TA = 85C | 3 |
| Minimum High-Level Output Voltage | VOH | 1.9 |  |  | V | VIN = VIH or VIL, IOH = −20 µA, VCC = 2.0 V, TA = 25C | 3 |
| Minimum High-Level Output Voltage | VOH | 2.9 |  |  | V | VIN = VIH or VIL, IOH = −20 µA, VCC = 3.0 V, TA = 25C | 3 |
| Minimum High-Level Output Voltage | VOH | 4.4 |  |  | V | VIN = VIH or VIL, IOH = −20 µA, VCC = 4.5 V, TA = 25C | 3 |
| Minimum High-Level Output Voltage | VOH | 5.9 |  |  | V | VIN = VIH or VIL, IOH = −20 µA, VCC = 6.0 V, TA = 25C | 3 |
| Maximum Low-Level Output Voltage | VOL |  |  | 0.1 | V | VIN ≥ VT Max, IOL = 20 µA, VCC = 2.0 V, TA = 25C | 3 |
| Maximum Input Leakage Current | IIN |  | 0.1 | 1 | µA | VIN = 6.0 V or GND, VCC = 6.0 V, TA = 25C | 3 |
| Maximum Quiescent Supply Current | ICC |  | 1 | 10 | µA | VIN = VCC or GND, VCC = 6.0 V, TA = 25C | 3 |
| Maximum Propagation Delay, Input A or B to Y | tPLH, tPHL |  | 3.5 | 15 | ns | VCC = 5.0 V, CL = 15 pF, TA = 25C | 3 |
| Maximum Input Capacitance | CIN |  | 5 | 10 | pF |  | 3 |
| Thermal Resistance, Junction-to-Ambient | JA |  | 230 |  | C/W | SOT23-5/TSOP-5/SC59-5; minimum pad spacing on FR4, no air flow (Note 1) | 2 |

## CAD (KiCad official)

- Symbol: `MC74HC1G14DTT1G`
- Footprint: `Package_SO:TSOP-5_1.65x3.05mm_P0.95mm`
- 3D model: TSOP-5 (KiCad packages3D, STEP)
- 3D model files: `mc74hc1g14dtt1g-etched.step` / `mc74hc1g14dtt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mc74hc1g14dtt1g.step` / `mc74hc1g14dtt1g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586200307965562880) (6 pp, sha256 `a7de3e8aaebe18e3`, retrieved 2026-10-17, 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/mc74hc1g14dtt1g-datasheet.pdf)