component
U74LVC1G125G-AL5-R
Public Made by Adomby adom
UTC Unisonic Tech Buffers, Drivers, Receivers, Transceivers, SOT-353. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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U74LVC1G125G-AL5-R
UTC Unisonic Tech · Buffers, Drivers, Receivers, Transceivers · SOT-353
U74LVC1G125G-AL5-R from UTC Unisonic Tech, in a SOT-353. 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 | OE | input | Active-low output enable: when OE is high the output Y is disabled (high-impedance), and when low, A passes to Y; the input accepts voltages up to 5.5 V. |
| 2 | A | input | Data input that passes to output Y when OE is low; inputs accept voltages up to 5.5 V, with VIN rated 0 to 5.5 V. |
| 3 | GND | power_in | Ground reference for the device. |
| 4 | Y | tri_state | 3-state buffer output that goes high-impedance when OE is high; continuous output current is rated at ±50 mA (VOUT = 0 to VCC). |
| 5 | VCC | power_in | Supply voltage, operating range 1.65 V to 5.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UTC Unisonic Tech |
| Package | SOT-353 |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VCC | 1.65 | 5.5 | V | Operating | 3 | |
| Input Voltage | VIN | 0 | 5.5 | V | 3 | ||
| Output Voltage (Enable mode) | VOUT | 0 | V | VCC=1.65V ~ 5.5V; Enable mode | 3 | ||
| Output Voltage (Disable mode) | VOUT | 0 | 5.5 | V | VCC=1.65V ~ 5.5V; Disable mode | 3 | |
| Output Voltage (Power-down mode) | VOUT | 0 | 5.5 | V | VCC=0V; Power-down mode | 3 | |
| Input Transition Rise or Fall Rate | tR/tF | 20 | ns/V | VCC=1.65V ~ 2.7V | 3 | ||
| Input Transition Rise or Fall Rate | tR/tF | 10 | ns/V | VCC=2.7V ~ 5.5V | 3 | ||
| Supply Voltage | VCC | -0.5 | 6.5 | V | 3 | ||
| Input Voltage | VIN | -0.5 | 6.5 | V | 3 | ||
| Output Voltage (Enable mode) | VOUT | -0.5 | V | Enable mode | 3 | ||
| Output Voltage (Disable mode) | VOUT | -0.5 | 6.5 | V | Disable mode | 3 | |
| Output Voltage (Power-down mode) | VOUT | -0.5 | 6.5 | V | Power-down mode | 3 | |
| VCC or GND Current | ICC | -100 | 100 | mA | 3 | ||
| Continuous Output Current | IOUT | -50 | 50 | mA | VOUT=0 to VCC | 3 | |
| Input Clamp Current | IIK | -50 | mA | VIN<0 | 3 | ||
| Output Clamp Current | IOK | -50 | 50 | mA | VOUT>VCC or VOUT<0 | 3 | |
| Power Dissipation (SOT-353) | PD | 250 | mW | TA=-40°C ~ +125°C | 3 | ||
| Operating Temperature | TOPR | -40 | 125 | °C | 3 | ||
| Storage Temperature | TSTG | -65 | 150 | °C | 3 | ||
| High-Level Input Voltage | VIH | 1.7 | V | VCC=2.3V ~ 2.7V | 4 | ||
| High-Level Input Voltage | VIH | 2 | V | VCC=2.7V ~ 3.6V | 4 | ||
| Low-Level Input Voltage | VIL | 0.7 | V | VCC=2.3V ~ 2.7V | 4 | ||
| Low-Level Input Voltage | VIL | 0.8 | V | VCC=2.7V ~ 3.6V | 4 | ||
| High-Level Output Voltage | VOH | 1.2 | V | VCC=1.65V, IOH=-4mA | 4 | ||
| High-Level Output Voltage | VOH | 1.9 | V | VCC=2.3V, IOH=-8mA | 4 | ||
| High-Level Output Voltage | VOH | 2.2 | V | VCC=2.7V, IOH=-12mA | 4 | ||
| High-Level Output Voltage | VOH | 2.3 | V | VCC=3.0V, IOH=-24mA | 4 | ||
| High-Level Output Voltage | VOH | 3.8 | V | VCC=4.5V, IOH=-32mA | 4 | ||
| Low-Level Output Voltage | VOL | 0.1 | V | VCC=1.65 ~ 5.5V, IOL=100μA | 4 | ||
| Low-Level Output Voltage | VOL | 0.45 | V | VCC=1.65V, IOL=4mA | 4 | ||
| Low-Level Output Voltage | VOL | 0.3 | V | VCC=2.3V, IOL=8mA | 4 | ||
| Low-Level Output Voltage | VOL | 0.4 | V | VCC=2.7V, IOL=12mA | 4 | ||
| Low-Level Output Voltage | VOL | 0.55 | V | VCC=3.0V, IOL=24mA | 4 | ||
| Input Leakage Current | II(LEAK) | -5 | 5 | μA | VCC=5.5V, VIN=5.5V or GND | 4 | |
| Power OFF Leakage Current | IOFF | -10 | 10 | μA | VCC=0V, VIN or VOUT=5.5V | 4 | |
| 3-State Output OFF-State Current | IOZ | -10 | 10 | μA | VCC =5.5V, VIN=VIH or VIL, VOUT=VCC or GND | 4 | |
| Quiescent Supply Current | IQ | 0.1 | 10 | μA | VCC=5.5V, VIN=VCC or GND, IOUT=0 | 4 | |
| Additional Quiescent Supply Current Per Input Pin | ∆IQ | 5 | 500 | μA | VCC=2.3 ~ 5.5V, VIN=VCC -0.6V, IOUT=0 | 4 | |
| Propagation Delay From Input A to Output Y | tPLH/tPHL | 1 | 3.3 | 8 | ns | VCC=1.8±0.15V, RL=1KΩ, CL=30pF | 4 |
| Propagation Delay From Input A to Output Y | tPLH/tPHL | 0.5 | 2.2 | 5.5 | ns | VCC=2.5±0.2V, RL=500Ω, CL=30pF | 4 |
| Propagation Delay From Input A to Output Y | tPLH/tPHL | 0.5 | 2.5 | 5.5 | ns | VCC=2.7V, CL=50pF, RL=500Ω | 4 |
| Propagation Delay From Input A to Output Y | tPLH/tPHL | 0.5 | 2.1 | 4.5 | ns | VCC=3.3±0.3V, CL=50pF, RL=500Ω | 4 |
| Propagation Delay From Input A to Output Y | tPLH/tPHL | 0.5 | 1.7 | 4 | ns | VCC=5±0.5V, CL=50pF, RL=500Ω | 4 |
| 3-State Output Enable Time From Input OE to Output Y | tPZH/tPZL | 1 | 4.1 | 9.4 | ns | VCC=1.8±0.15V, RL=1KΩ, CL=30pF | 4 |
| 3-State Output Enable Time From Input OE to Output Y | tPZH/tPZL | 0.5 | 2.8 | 6.6 | ns | VCC=2.5±0.2V, RL=500Ω, CL=30pF | 4 |
| 3-State Output Enable Time From Input OE to Output Y | tPZH/tPZL | 0.5 | 3.3 | 6.6 | ns | VCC=2.7V, CL=50pF, RL=500Ω | 4 |
| 3-State Output Enable Time From Input OE to Output Y | tPZH/tPZL | 0.5 | 2.4 | 5.3 | ns | VCC=3.3±0.3V, CL=50pF, RL=500Ω | 4 |
| 3-State Output Enable Time From Input OE to Output Y | tPZH/tPZL | 0.5 | 2.1 | 5 | ns | VCC=5±0.5V, CL=50pF, RL=500Ω | 4 |
| 3-State Output Disable Time From Input OE to Output Y | tPLZ/tPHZ | 1 | 4.3 | 9.2 | ns | VCC=1.8±0.15V, RL=1KΩ, CL=30pF | 4 |
| 3-State Output Disable Time From Input OE to Output Y | tPLZ/tPHZ | 0.5 | 2.7 | 5 | ns | VCC=2.5±0.2V, RL=500Ω, CL=30pF | 4 |
| 3-State Output Disable Time From Input OE to Output Y | tPLZ/tPHZ | 0.5 | 3 | 5 | ns | VCC=2.7V, CL=50pF, RL=500Ω | 4 |
| 3-State Output Disable Time From Input OE to Output Y | tPLZ/tPHZ | 0.5 | 3.1 | 5 | ns | VCC=3.3±0.3V, CL=50pF, RL=500Ω | 4 |
| 3-State Output Disable Time From Input OE to Output Y | tPLZ/tPHZ | 0.5 | 2.2 | 4.2 | ns | VCC=5±0.5V, CL=50pF, RL=500Ω | 4 |
CAD (KiCad official)
- Symbol:
U74LVC1G125G-AL5-R - Footprint:
Package_TO_SOT_SMD:SOT-353_SC-70-5 - 3D model: SOT-353 (KiCad packages3D, STEP)
- 3D model files:
u74lvc1g125g-al5-r-etched.step/u74lvc1g125g-al5-r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);u74lvc1g125g-al5-r.step/u74lvc1g125g-al5-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
d9aca2561017961f, retrieved 2026-10-19, 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).
# U74LVC1G125G-AL5-R
**UTC Unisonic Tech** · Buffers, Drivers, Receivers, Transceivers · SOT-353
U74LVC1G125G-AL5-R from UTC Unisonic Tech, in a SOT-353. 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 | OE | input | Active-low output enable: when OE is high the output Y is disabled (high-impedance), and when low, A passes to Y; the input accepts voltages up to 5.5 V. |
| 2 | A | input | Data input that passes to output Y when OE is low; inputs accept voltages up to 5.5 V, with VIN rated 0 to 5.5 V. |
| 3 | GND | power_in | Ground reference for the device. |
| 4 | Y | tri_state | 3-state buffer output that goes high-impedance when OE is high; continuous output current is rated at ±50 mA (VOUT = 0 to VCC). |
| 5 | VCC | power_in | Supply voltage, operating range 1.65 V to 5.5 V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UTC Unisonic Tech |
| Package | SOT-353 |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VCC | 1.65 | | 5.5 | V | Operating | 3 |
| Input Voltage | VIN | 0 | | 5.5 | V | | 3 |
| Output Voltage (Enable mode) | VOUT | 0 | | | V | VCC=1.65V ~ 5.5V; Enable mode | 3 |
| Output Voltage (Disable mode) | VOUT | 0 | | 5.5 | V | VCC=1.65V ~ 5.5V; Disable mode | 3 |
| Output Voltage (Power-down mode) | VOUT | 0 | | 5.5 | V | VCC=0V; Power-down mode | 3 |
| Input Transition Rise or Fall Rate | tR/tF | | | 20 | ns/V | VCC=1.65V ~ 2.7V | 3 |
| Input Transition Rise or Fall Rate | tR/tF | | | 10 | ns/V | VCC=2.7V ~ 5.5V | 3 |
| Supply Voltage | VCC | -0.5 | | 6.5 | V | | 3 |
| Input Voltage | VIN | -0.5 | | 6.5 | V | | 3 |
| Output Voltage (Enable mode) | VOUT | -0.5 | | | V | Enable mode | 3 |
| Output Voltage (Disable mode) | VOUT | -0.5 | | 6.5 | V | Disable mode | 3 |
| Output Voltage (Power-down mode) | VOUT | -0.5 | | 6.5 | V | Power-down mode | 3 |
| VCC or GND Current | ICC | -100 | | 100 | mA | | 3 |
| Continuous Output Current | IOUT | -50 | | 50 | mA | VOUT=0 to VCC | 3 |
| Input Clamp Current | IIK | -50 | | | mA | VIN<0 | 3 |
| Output Clamp Current | IOK | -50 | | 50 | mA | VOUT>VCC or VOUT<0 | 3 |
| Power Dissipation (SOT-353) | PD | | | 250 | mW | TA=-40°C ~ +125°C | 3 |
| Operating Temperature | TOPR | -40 | | 125 | °C | | 3 |
| Storage Temperature | TSTG | -65 | | 150 | °C | | 3 |
| High-Level Input Voltage | VIH | 1.7 | | | V | VCC=2.3V ~ 2.7V | 4 |
| High-Level Input Voltage | VIH | 2 | | | V | VCC=2.7V ~ 3.6V | 4 |
| Low-Level Input Voltage | VIL | | | 0.7 | V | VCC=2.3V ~ 2.7V | 4 |
| Low-Level Input Voltage | VIL | | | 0.8 | V | VCC=2.7V ~ 3.6V | 4 |
| High-Level Output Voltage | VOH | 1.2 | | | V | VCC=1.65V, IOH=-4mA | 4 |
| High-Level Output Voltage | VOH | 1.9 | | | V | VCC=2.3V, IOH=-8mA | 4 |
| High-Level Output Voltage | VOH | 2.2 | | | V | VCC=2.7V, IOH=-12mA | 4 |
| High-Level Output Voltage | VOH | 2.3 | | | V | VCC=3.0V, IOH=-24mA | 4 |
| High-Level Output Voltage | VOH | 3.8 | | | V | VCC=4.5V, IOH=-32mA | 4 |
| Low-Level Output Voltage | VOL | | | 0.1 | V | VCC=1.65 ~ 5.5V, IOL=100μA | 4 |
| Low-Level Output Voltage | VOL | | | 0.45 | V | VCC=1.65V, IOL=4mA | 4 |
| Low-Level Output Voltage | VOL | | | 0.3 | V | VCC=2.3V, IOL=8mA | 4 |
| Low-Level Output Voltage | VOL | | | 0.4 | V | VCC=2.7V, IOL=12mA | 4 |
| Low-Level Output Voltage | VOL | | | 0.55 | V | VCC=3.0V, IOL=24mA | 4 |
| Input Leakage Current | II(LEAK) | -5 | | 5 | μA | VCC=5.5V, VIN=5.5V or GND | 4 |
| Power OFF Leakage Current | IOFF | -10 | | 10 | μA | VCC=0V, VIN or VOUT=5.5V | 4 |
| 3-State Output OFF-State Current | IOZ | -10 | | 10 | μA | VCC =5.5V, VIN=VIH or VIL, VOUT=VCC or GND | 4 |
| Quiescent Supply Current | IQ | | 0.1 | 10 | μA | VCC=5.5V, VIN=VCC or GND, IOUT=0 | 4 |
| Additional Quiescent Supply Current Per Input Pin | ∆IQ | | 5 | 500 | μA | VCC=2.3 ~ 5.5V, VIN=VCC -0.6V, IOUT=0 | 4 |
| Propagation Delay From Input A to Output Y | tPLH/tPHL | 1 | 3.3 | 8 | ns | VCC=1.8±0.15V, RL=1KΩ, CL=30pF | 4 |
| Propagation Delay From Input A to Output Y | tPLH/tPHL | 0.5 | 2.2 | 5.5 | ns | VCC=2.5±0.2V, RL=500Ω, CL=30pF | 4 |
| Propagation Delay From Input A to Output Y | tPLH/tPHL | 0.5 | 2.5 | 5.5 | ns | VCC=2.7V, CL=50pF, RL=500Ω | 4 |
| Propagation Delay From Input A to Output Y | tPLH/tPHL | 0.5 | 2.1 | 4.5 | ns | VCC=3.3±0.3V, CL=50pF, RL=500Ω | 4 |
| Propagation Delay From Input A to Output Y | tPLH/tPHL | 0.5 | 1.7 | 4 | ns | VCC=5±0.5V, CL=50pF, RL=500Ω | 4 |
| 3-State Output Enable Time From Input OE to Output Y | tPZH/tPZL | 1 | 4.1 | 9.4 | ns | VCC=1.8±0.15V, RL=1KΩ, CL=30pF | 4 |
| 3-State Output Enable Time From Input OE to Output Y | tPZH/tPZL | 0.5 | 2.8 | 6.6 | ns | VCC=2.5±0.2V, RL=500Ω, CL=30pF | 4 |
| 3-State Output Enable Time From Input OE to Output Y | tPZH/tPZL | 0.5 | 3.3 | 6.6 | ns | VCC=2.7V, CL=50pF, RL=500Ω | 4 |
| 3-State Output Enable Time From Input OE to Output Y | tPZH/tPZL | 0.5 | 2.4 | 5.3 | ns | VCC=3.3±0.3V, CL=50pF, RL=500Ω | 4 |
| 3-State Output Enable Time From Input OE to Output Y | tPZH/tPZL | 0.5 | 2.1 | 5 | ns | VCC=5±0.5V, CL=50pF, RL=500Ω | 4 |
| 3-State Output Disable Time From Input OE to Output Y | tPLZ/tPHZ | 1 | 4.3 | 9.2 | ns | VCC=1.8±0.15V, RL=1KΩ, CL=30pF | 4 |
| 3-State Output Disable Time From Input OE to Output Y | tPLZ/tPHZ | 0.5 | 2.7 | 5 | ns | VCC=2.5±0.2V, RL=500Ω, CL=30pF | 4 |
| 3-State Output Disable Time From Input OE to Output Y | tPLZ/tPHZ | 0.5 | 3 | 5 | ns | VCC=2.7V, CL=50pF, RL=500Ω | 4 |
| 3-State Output Disable Time From Input OE to Output Y | tPLZ/tPHZ | 0.5 | 3.1 | 5 | ns | VCC=3.3±0.3V, CL=50pF, RL=500Ω | 4 |
| 3-State Output Disable Time From Input OE to Output Y | tPLZ/tPHZ | 0.5 | 2.2 | 4.2 | ns | VCC=5±0.5V, CL=50pF, RL=500Ω | 4 |
## CAD (KiCad official)
- Symbol: `U74LVC1G125G-AL5-R`
- Footprint: `Package_TO_SOT_SMD:SOT-353_SC-70-5`
- 3D model: SOT-353 (KiCad packages3D, STEP)
- 3D model files: `u74lvc1g125g-al5-r-etched.step` / `u74lvc1g125g-al5-r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `u74lvc1g125g-al5-r.step` / `u74lvc1g125g-al5-r.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [UTC Unisonic Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586204725549142016) (5 pp, sha256 `d9aca2561017961f`, retrieved 2026-10-19, 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/u74lvc1g125g-al5-r-datasheet.pdf)