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U74AHC14G-P14-R
Public Made by Adomby adom
UTC Unisonic Tech Flip Flops, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownU74AHC14G-P14-R
UTC Unisonic Tech · Flip Flops · TSSOP-14
U74AHC14G-P14-R from UTC Unisonic Tech, 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 | 1A | input | Input of inverter 1 (Y = A-bar); recommended input voltage range is 0 to 5.5 V. |
| 2 | 1Y | output | Output of inverter 1; absolute maximum output sink current is ±25 mA. |
| 3 | 2A | input | Input of inverter 2 (Y = A-bar); recommended input voltage range is 0 to 5.5 V. |
| 4 | 2Y | output | Output of inverter 2; absolute maximum output sink current is ±25 mA. |
| 5 | 3A | input | Input of inverter 3 (Y = A-bar); recommended input voltage range is 0 to 5.5 V. |
| 6 | 3Y | output | Output of inverter 3; absolute maximum output sink current is ±25 mA. |
| 7 | GND | power_in | Ground reference; absolute maximum VCC or GND current is ±50 mA. |
| 8 | 4Y | output | Output of inverter 4; absolute maximum output sink current is ±25 mA. |
| 9 | 4A | input | Input of inverter 4 (Y = A-bar); recommended input voltage range is 0 to 5.5 V. |
| 10 | 5Y | output | Output of inverter 5; absolute maximum output sink current is ±25 mA. |
| 11 | 5A | input | Input of inverter 5 (Y = A-bar); recommended input voltage range is 0 to 5.5 V. |
| 12 | 6Y | output | Output of inverter 6; absolute maximum output sink current is ±25 mA. |
| 13 | 6A | input | Input of inverter 6 (Y = A-bar); recommended input voltage range is 0 to 5.5 V. |
| 14 | VCC | power_in | Positive supply; recommended range 2.0 V to 5.5 V, absolute maximum -0.5 V to +7 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UTC Unisonic Tech |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VCC | 2 | 5.5 | V | 3 | ||
| Input Voltage | VIN | 0 | 5.5 | V | 3 | ||
| Output Voltage | VOUT | 0 | V | 3 | |||
| High-Level Input Current | IOH | -50 | μA | VCC=2V | 3 | ||
| High-Level Input Current | IOH | -4 | mA | VCC=3.3V±0.3V | 3 | ||
| High-Level Input Current | IOH | -8 | mA | VCC=5V±0.5V | 3 | ||
| Low-Level Input Current | IOL | 50 | μA | VCC=2V | 3 | ||
| Low-Level Input Current | IOL | 4 | mA | VCC=3.3V±0.3V | 3 | ||
| Low-Level Input Current | IOL | 8 | mA | VCC=5V±0.5V | 3 | ||
| Operating Temperature | TA | -40 | 85 | °C | 3 | ||
| Supply Voltage | VCC | -0.5 | 7 | V | 3 | ||
| Input Voltage | VIN | -0.5 | 7 | V | 3 | ||
| Output Voltage | VOUT | -0.5 | V | 3 | |||
| Input Clamp Current | IIK | -20 | mA | 3 | |||
| Output Clamp Current | IOK | -20 | 20 | mA | 3 | ||
| Output Sink Current | IOUT | -25 | 25 | mA | 3 | ||
| VCC or GND Current | ICC | -50 | 50 | mA | 3 | ||
| Storage Temperature | TSTG | -65 | 150 | °C | 3 | ||
| Positive-going Input Threshold Voltage | VT+ | 1.2 | 2.2 | V | VCC=3.0V | 4 | |
| Positive-going Input Threshold Voltage | VT+ | 1.75 | 3.15 | V | VCC=4.5V | 4 | |
| Positive-going Input Threshold Voltage | VT+ | 2.15 | 3.85 | V | VCC=5.5V | 4 | |
| Negative-going Input Threshold Voltage | VT- | 0.9 | 1.9 | V | VCC=3.0V | 4 | |
| Negative-going Input Threshold Voltage | VT- | 1.35 | 2.75 | V | VCC=4.5V | 4 | |
| Negative-going Input Threshold Voltage | VT- | 1.65 | 3.35 | V | VCC=5.5V | 4 | |
| Hysteresis (VT+-VT-) | ΔVT | 0.3 | 1.2 | V | VCC=3.0V | 4 | |
| Hysteresis (VT+-VT-) | ΔVT | 0.4 | 1.4 | V | VCC=4.5V | 4 | |
| Hysteresis (VT+-VT-) | ΔVT | 0.5 | 1.6 | V | VCC=5.5V | 4 | |
| High-Level Output Voltage | VOH | 1.9 | V | IOH=-50μA, VCC=2.0V | 4 | ||
| High-Level Output Voltage | VOH | 2.9 | V | IOH=-50μA, VCC=3.0V | 4 | ||
| High-Level Output Voltage | VOH | 4.4 | V | IOH=-50μA, VCC=4.5V | 4 | ||
| High-Level Output Voltage | VOH | 2.58 | V | IOH=-4mA, VCC=3.0V | 4 | ||
| High-Level Output Voltage | VOH | 3.94 | V | IOH=-8mA, VCC=4.5V | 4 | ||
| Low-Level Output Voltage | VOL | 0.1 | V | IOL=50μA, VCC=2.0V | 4 | ||
| Low-Level Output Voltage | VOL | 0.36 | V | IOL=4mA, VCC=3.0V | 4 | ||
| Input Leakage Current | II(LEAK) | -0.1 | 0.1 | μA | VCC=0V to 5.5V, VIN=5.5V or GND | 4 | |
| Quiescent Supply Current | IQ | 2 | μA | VCC=5.5V, VIN=VCC or GND, IOUT=0 | 4 | ||
| Input Capacitance | CI | 2 | 10 | pF | VIN=VCC or GND | 4 | |
| Propagation Delay, Input(A) to Output(Y) | tPLH/tPHL | 8.3 | 12.8 | ns | CL=15 pF, VCC=3.3±0.3 V | 4 | |
| Propagation Delay, Input(A) to Output(Y) | tPLH/tPHL | 10.8 | 16.3 | ns | CL=50 pF, VCC=3.3±0.3 V | 4 | |
| Propagation Delay, Input(A) to Output(Y) | tPLH/tPHL | 5.5 | 8.6 | ns | CL=15 pF, VCC=5.0±0.5 V | 4 | |
| Propagation Delay, Input(A) to Output(Y) | tPLH/tPHL | 7 | 10.6 | ns | CL=50 pF, VCC=5.0±0.5 V | 4 | |
| Thermal Resistance Junction-Ambient | θJA | 113 | °C/W | TSSOP-14 package | 3 |
CAD (KiCad official)
- Symbol:
U74AHC14G-P14-R - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
u74ahc14g-p14-r-etched.step/u74ahc14g-p14-r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);u74ahc14g-p14-r.step/u74ahc14g-p14-r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UTC Unisonic Tech datasheet (5 pp, sha256
9130d8be4a36c823, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).