# MM74HC14M

**onsemi** · Inverters · SOIC-14

MM74HC14M from onsemi, in a SOIC-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, protected by diode clamps to VCC and ground. |
| 2 | Y1 | output | Inverting output of gate 1, able to drive 10 LS-TTL loads. |
| 3 | A2 | input | Schmitt trigger input of inverter 2, protected by diode clamps to VCC and ground. |
| 4 | Y2 | output | Inverting output of gate 2, able to drive 10 LS-TTL loads. |
| 5 | A3 | input | Schmitt trigger input of inverter 3, protected by diode clamps to VCC and ground. |
| 6 | Y3 | output | Inverting output of gate 3, able to drive 10 LS-TTL loads. |
| 7 | GND | power_in | Ground reference for the device. |
| 8 | Y4 | output | Inverting output of gate 4, able to drive 10 LS-TTL loads. |
| 9 | A4 | input | Schmitt trigger input of inverter 4, protected by diode clamps to VCC and ground. |
| 10 | Y5 | output | Inverting output of gate 5, able to drive 10 LS-TTL loads. |
| 11 | A5 | input | Schmitt trigger input of inverter 5, protected by diode clamps to VCC and ground. |
| 12 | Y6 | output | Inverting output of gate 6, able to drive 10 LS-TTL loads. |
| 13 | A6 | input | Schmitt trigger input of inverter 6, protected by diode clamps to VCC and ground. |
| 14 | VCC | power_in | Positive supply voltage, recommended 2V to 6V (absolute maximum -0.5 to +7.0V). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOIC-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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage (recommended) | VCC | 2 |  | 6 | V |  | 2 |
| DC Input or Output Voltage (recommended) | VIN, VOUT | 0 |  |  | V | Maximum printed as VCC | 2 |
| Operating Temperature Range | TA | -55 |  | 125 | °C |  | 2 |
| Supply Voltage (absolute maximum) | VCC | -0.5 |  | 7 | V |  | 2 |
| DC Input Voltage (absolute maximum) | VIN | -1.5 |  |  | V | Maximum printed as VCC+1.5V | 2 |
| DC Output Voltage (absolute maximum) | VOUT | -0.5 |  |  | V | Maximum printed as VCC+0.5V | 2 |
| Clamp Diode Current | IIK, IOK | -20 |  | 20 | mA |  | 2 |
| DC Output Current, per pin | IOUT | -25 |  | 25 | mA |  | 2 |
| DC VCC or GND Current, per pin | ICC | -50 |  | 50 | mA |  | 2 |
| Storage Temperature Range | TSTG | -65 |  | 150 | °C |  | 2 |
| Power Dissipation | PD |  |  | 500 | mW | S.O. Package only | 2 |
| Lead Temperature | TL |  |  | 260 | °C | Soldering 10 seconds | 2 |
| Positive Going Threshold Voltage, VCC=2.0V, Minimum | VT+ | 1 | 1.2 |  | V |  | 3 |
| Positive Going Threshold Voltage, VCC=4.5V, Minimum | VT+ | 2 | 2.7 |  | V |  | 3 |
| Positive Going Threshold Voltage, VCC=6.0V, Minimum | VT+ | 3 | 3.2 |  | V |  | 3 |
| Positive Going Threshold Voltage, VCC=2.0V, Maximum | VT+ |  | 1.2 | 1.5 | V |  | 3 |
| Positive Going Threshold Voltage, VCC=4.5V, Maximum | VT+ |  | 2.7 | 3.15 | V |  | 3 |
| Positive Going Threshold Voltage, VCC=6.0V, Maximum | VT+ |  | 3.2 | 4.2 | V |  | 3 |
| Negative Going Threshold Voltage, VCC=2.0V, Minimum | VT- | 0.3 | 0.7 |  | V |  | 3 |
| Negative Going Threshold Voltage, VCC=4.5V, Minimum | VT- | 0.9 | 1.8 |  | V |  | 3 |
| Negative Going Threshold Voltage, VCC=6.0V, Minimum | VT- | 1.2 | 2.2 |  | V |  | 3 |
| Negative Going Threshold Voltage, VCC=2.0V, Maximum | VT- |  | 0.7 | 1 | V |  | 3 |
| Negative Going Threshold Voltage, VCC=4.5V, Maximum | VT- |  | 1.8 | 2.2 | V |  | 3 |
| Negative Going Threshold Voltage, VCC=6.0V, Maximum | VT- |  | 2.2 | 3 | V |  | 3 |
| Hysteresis Voltage, VCC=2.0V, Minimum | VH | 0.2 | 0.5 |  | V |  | 3 |
| Hysteresis Voltage, VCC=4.5V, Minimum | VH | 0.4 | 0.9 |  | V |  | 3 |
| Hysteresis Voltage, VCC=6.0V, Minimum | VH | 0.5 | 1 |  | V |  | 3 |
| Hysteresis Voltage, VCC=2.0V, Maximum | VH |  | 0.5 | 1 | V |  | 3 |
| Hysteresis Voltage, VCC=4.5V, Maximum | VH |  | 0.9 | 1.4 | V |  | 3 |
| Hysteresis Voltage, VCC=6.0V, Maximum | VH |  | 1 | 1.5 | V |  | 3 |
| Minimum HIGH Level Output Voltage, VCC=2.0V | VOH | 1.9 | 2 |  | V | VIN = VIL, /IOUT/ = 20µA | 3 |
| Minimum HIGH Level Output Voltage, VCC=4.5V | VOH | 4.4 | 4.5 |  | V | VIN = VIL, /IOUT/ = 20µA | 3 |
| Minimum HIGH Level Output Voltage, VCC=6.0V | VOH | 5.9 | 6 |  | V | VIN = VIL, /IOUT/ = 20µA | 3 |
| Minimum HIGH Level Output Voltage, VCC=4.5V | VOH | 3.7 | 4.2 |  | V | VIN = VIL, /IOUT/ = 4.0mA | 3 |
| Minimum HIGH Level Output Voltage, VCC=6.0V | VOH | 5.2 | 5.7 |  | V | VIN = VIL, /IOUT/ = 5.2mA | 3 |
| Maximum LOW Level Output Voltage, VCC=2.0V | VOL |  | 0 | 0.1 | V | VIN = VIH, /IOUT/ = 20µA | 3 |
| Maximum LOW Level Output Voltage, VCC=4.5V | VOL |  | 0 | 0.1 | V | VIN = VIH, /IOUT/ = 20µA | 3 |
| Maximum LOW Level Output Voltage, VCC=6.0V | VOL |  | 0 | 0.1 | V | VIN = VIH, /IOUT/ = 20µA | 3 |
| Maximum LOW Level Output Voltage, VCC=4.5V | VOL |  | 0.2 | 0.4 | V | VIN = VIH, /IOUT/ = 4.0mA | 3 |
| Maximum LOW Level Output Voltage, VCC=6.0V | VOL |  | 0.2 | 0.4 | V | VIN = VIH, /IOUT/ = 5.2mA | 3 |
| Maximum Input Current, VCC=6.0V | IIN | -1 | 0.1 | 1 | µA | VIN = VCC or GND | 3 |
| Maximum Quiescent Supply Current, VCC=6.0V | ICC |  | 2 | 40 | µA | VIN = VCC or GND, IOUT = 0µA | 3 |
| Maximum Input Capacitance | CIN |  | 5 | 10 | pF |  | 4 |
| Maximum Propagation Delay, VCC=5V, TA=25°C | tPHL, tPLH |  | 12 | 22 | ns | VCC = 5V, TA = 25°C, CL = 15pF, tr = tf = 6ns | 4 |
| Maximum Propagation Delay, VCC=2.0V | tPHL, tPLH |  | 60 | 188 | ns | CL = 50pF, tr = tf = 6ns | 4 |
| Maximum Propagation Delay, VCC=4.5V | tPHL, tPLH |  | 13 | 38 | ns | CL = 50pF, tr = tf = 6ns | 4 |
| Maximum Propagation Delay, VCC=6.0V | tPHL, tPLH |  | 11 | 32 | ns | CL = 50pF, tr = tf = 6ns | 4 |
| Maximum Output Rise and Fall Time, VCC=2.0V | tTLH, tTHL |  | 30 | 110 | ns | CL = 50pF, tr = tf = 6ns | 4 |
| Maximum Output Rise and Fall Time, VCC=4.5V | tTLH, tTHL |  | 8 | 22 | ns | CL = 50pF, tr = tf = 6ns | 4 |
| Maximum Output Rise and Fall Time, VCC=6.0V | tTLH, tTHL |  | 7 | 19 | ns | CL = 50pF, tr = tf = 6ns | 4 |

## CAD (KiCad official)

- Symbol: `MM74HC14M`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files: `mm74hc14m-etched.step` / `mm74hc14m-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mm74hc14m.step` / `mm74hc14m.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/8589834934618783744) (6 pp, sha256 `335a1e373e0ac27e`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/mm74hc14m-datasheet.pdf)