component
RS4G125XQ
Public Made by Adomby adom
Jiangsu RUNIC Tech Buffers, Drivers, Receivers, Transceivers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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RS4G125XQ
Jiangsu RUNIC Tech · Buffers, Drivers, Receivers, Transceivers · TSSOP-14
RS4G125XQ from Jiangsu RUNIC 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 | 1OE | input | Active-low output enable for buffer 1; the buffer output is disabled (high-impedance) when this pin is high. |
| 2 | 1A | input | Data input of buffer 1, which accepts voltages up to 5.5V regardless of VCC. |
| 3 | 1Y | output | Output of buffer 1, rated for ±24mA drive at VCC = 3.0V. |
| 4 | 2OE | input | Active-low output enable for buffer 2; the buffer output is disabled (high-impedance) when this pin is high. |
| 5 | 2A | input | Data input of buffer 2, which accepts voltages up to 5.5V regardless of VCC. |
| 6 | 2Y | output | Output of buffer 2, rated for ±24mA drive at VCC = 3.0V. |
| 7 | GND | power_in | Ground reference for the device. |
| 8 | 3Y | output | Output of buffer 3, rated for ±24mA drive at VCC = 3.0V. |
| 9 | 3A | input | Data input of buffer 3, which accepts voltages up to 5.5V regardless of VCC. |
| 10 | 3OE | input | Active-low output enable for buffer 3; the buffer output is disabled (high-impedance) when this pin is high. |
| 11 | 4Y | output | Output of buffer 4, rated for ±24mA drive at VCC = 3.0V. |
| 12 | 4A | input | Data input of buffer 4, which accepts voltages up to 5.5V regardless of VCC. |
| 13 | 4OE | input | Active-low output enable for buffer 4; the buffer output is disabled (high-impedance) when this pin is high. |
| 14 | VCC | power_in | Power supply; operating range is 1.65V to 5.5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Jiangsu RUNIC 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, operating | VCC | 1.65 | 5.5 | V | Operating | 6 | |
| Supply voltage, data retention only | VCC | 1.5 | 5.5 | V | Data retention only | 6 | |
| High-level input voltage | VIH | 1.7 | V | VCC=2.3V to 2.7V | 6 | ||
| High-level input voltage | VIH | 2.2 | V | VCC=3V to 3.6V | 6 | ||
| Low-level input voltage | VIL | 0.3 | V | VCC=2.3V to 2.7V | 6 | ||
| Low-level input voltage | VIL | 0.4 | V | VCC=3V to 3.6V | 6 | ||
| Input voltage | VI | 0 | 5.5 | V | 6 | ||
| Output voltage | VO | 0 | V | 6 | |||
| Input transition rise or fall time | tr, tf | 20 | ns/V | VCC=1.8V±0.15V, 2.5V±0.2V | 6 | ||
| Input transition rise or fall time | tr, tf | 10 | ns/V | VCC=3.3V±0.3V | 6 | ||
| Input transition rise or fall time | tr, tf | 5 | ns/V | VCC=5V±0.5V | 6 | ||
| Operating temperature | TA | -40 | 125 | °C | 6 | ||
| High-level output voltage | VOH | 1.2 | V | IOH = -4mA; VCC = 1.65V; Full temp range | 6 | ||
| High-level output voltage | VOH | 1.9 | V | IOH = -8mA; VCC = 2.3V; Full temp range | 6 | ||
| High-level output voltage | VOH | 2.4 | V | IOH = -16mA; VCC = 3V; Full temp range | 6 | ||
| High-level output voltage | VOH | 2.3 | V | IOH = -24mA; VCC = 3V; Full temp range | 6 | ||
| High-level output voltage | VOH | 3.8 | V | IOH = -32mA; VCC = 4.5V; Full temp range | 6 | ||
| Low-level output voltage | VOL | 0.1 | V | IOL = 100μA; VCC = 1.65V to 5.5V; Full temp range | 6 | ||
| Low-level output voltage | VOL | 0.45 | V | IOL = 4mA; VCC = 1.65V; Full temp range | 6 | ||
| Low-level output voltage | VOL | 0.3 | V | IOL = 8mA; VCC = 2.3V; Full temp range | 6 | ||
| Low-level output voltage | VOL | 0.4 | V | IOL = 16mA; VCC = 3V; Full temp range | 6 | ||
| Low-level output voltage | VOL | 0.55 | V | IOL = 24mA; VCC = 3V; Full temp range | 6 | ||
| Input leakage current, A or OE inputs | II | -1 | 0.1 | 1 | µA | VI=5.5V or GND; VCC 0V to 5.5V; +25°C | 6 |
| Input leakage current, A or OE inputs | II | -5 | 5 | µA | VI=5.5V or GND; VCC 0V to 5.5V; Full temp range | 6 | |
| Power-off leakage current | Ioff | -1 | 0.1 | 1 | µA | VI or VO=5.5V; VCC=0V; +25°C | 6 |
| Power-off leakage current | Ioff | -10 | 10 | µA | VI or VO=5.5V; VCC=0V; Full temp range | 6 | |
| High-impedance output current | IOZ | 10 | µA | VO=0V to 5.5V; VCC=3.6V; Full temp range | 6 | ||
| Supply current | ICC | 0.1 | 1 | µA | VI=5.5V or GND, IO=0; VCC 1.65V to 5.5V; +25°C | 6 | |
| Supply current | ICC | 10 | µA | VI=5.5V or GND, IO=0; VCC 1.65V to 5.5V; Full temp range | 6 | ||
| Additional supply current per input | ΔICC | 500 | µA | One input at VCC-0.6V, other inputs at VCC or GND; VCC 3V to 5.5V; Full temp range | 6 | ||
| Supply voltage range | VCC | -0.5 | 6.5 | V | 4 | ||
| Input voltage range | VI | -0.5 | 6.5 | V | 4 | ||
| Voltage range applied to any output in high-impedance or power-off state | Vo | -0.5 | 6.5 | V | 4 | ||
| Voltage range applied to any output in high or low state | Vo | -0.5 | V | 4 | |||
| Input clamp current | IIK | -50 | mA | VI<0 | 4 | ||
| Output clamp current | IOK | -50 | mA | VO<0 | 4 | ||
| Continuous output current | IO | -50 | 50 | mA | 4 | ||
| Continuous current through VCC or GND | -100 | 100 | mA | 4 | |||
| Junction temperature | TJ | -65 | 150 | °C | 4 | ||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| Electrostatic discharge, human-body model | V(ESD) | -8000 | 8000 | V | Human-body model (HBM) | 4 | |
| Electrostatic discharge, machine model | V(ESD) | -500 | 500 | V | Machine model (MM) | 4 | |
| Junction-to-ambient thermal resistance | RϴJA | 141.2 | °C/W | TSSOP-14 | 4 | ||
| Junction-to-case (top) thermal resistance | RϴJC(top) | 78.8 | °C/W | TSSOP-14 | 4 | ||
| Junction-to-board thermal resistance | RϴJB | 85.8 | °C/W | TSSOP-14 | 4 | ||
| Junction-to-top characterization parameter | ΨJT | 27.7 | °C/W | TSSOP-14 | 4 | ||
| Junction-to-board characterization parameter | ΨJB | 85.5 | °C/W | TSSOP-14 | 4 |
CAD (KiCad official)
- Symbol:
RS4G125XQ - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
rs4g125xq-etched.step/rs4g125xq-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rs4g125xq.step/rs4g125xq.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Jiangsu RUNIC Tech datasheet (11 pp, sha256
5e8a48a04dd1d90a, retrieved 2026-10-17, 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).
# RS4G125XQ
**Jiangsu RUNIC Tech** · Buffers, Drivers, Receivers, Transceivers · TSSOP-14
RS4G125XQ from Jiangsu RUNIC 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 | 1OE | input | Active-low output enable for buffer 1; the buffer output is disabled (high-impedance) when this pin is high. |
| 2 | 1A | input | Data input of buffer 1, which accepts voltages up to 5.5V regardless of VCC. |
| 3 | 1Y | output | Output of buffer 1, rated for ±24mA drive at VCC = 3.0V. |
| 4 | 2OE | input | Active-low output enable for buffer 2; the buffer output is disabled (high-impedance) when this pin is high. |
| 5 | 2A | input | Data input of buffer 2, which accepts voltages up to 5.5V regardless of VCC. |
| 6 | 2Y | output | Output of buffer 2, rated for ±24mA drive at VCC = 3.0V. |
| 7 | GND | power_in | Ground reference for the device. |
| 8 | 3Y | output | Output of buffer 3, rated for ±24mA drive at VCC = 3.0V. |
| 9 | 3A | input | Data input of buffer 3, which accepts voltages up to 5.5V regardless of VCC. |
| 10 | 3OE | input | Active-low output enable for buffer 3; the buffer output is disabled (high-impedance) when this pin is high. |
| 11 | 4Y | output | Output of buffer 4, rated for ±24mA drive at VCC = 3.0V. |
| 12 | 4A | input | Data input of buffer 4, which accepts voltages up to 5.5V regardless of VCC. |
| 13 | 4OE | input | Active-low output enable for buffer 4; the buffer output is disabled (high-impedance) when this pin is high. |
| 14 | VCC | power_in | Power supply; operating range is 1.65V to 5.5V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Jiangsu RUNIC 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, operating | VCC | 1.65 | | 5.5 | V | Operating | 6 |
| Supply voltage, data retention only | VCC | 1.5 | | 5.5 | V | Data retention only | 6 |
| High-level input voltage | VIH | 1.7 | | | V | VCC=2.3V to 2.7V | 6 |
| High-level input voltage | VIH | 2.2 | | | V | VCC=3V to 3.6V | 6 |
| Low-level input voltage | VIL | | | 0.3 | V | VCC=2.3V to 2.7V | 6 |
| Low-level input voltage | VIL | | | 0.4 | V | VCC=3V to 3.6V | 6 |
| Input voltage | VI | 0 | | 5.5 | V | | 6 |
| Output voltage | VO | 0 | | | V | | 6 |
| Input transition rise or fall time | tr, tf | | | 20 | ns/V | VCC=1.8V±0.15V, 2.5V±0.2V | 6 |
| Input transition rise or fall time | tr, tf | | | 10 | ns/V | VCC=3.3V±0.3V | 6 |
| Input transition rise or fall time | tr, tf | | | 5 | ns/V | VCC=5V±0.5V | 6 |
| Operating temperature | TA | -40 | | 125 | °C | | 6 |
| High-level output voltage | VOH | 1.2 | | | V | IOH = -4mA; VCC = 1.65V; Full temp range | 6 |
| High-level output voltage | VOH | 1.9 | | | V | IOH = -8mA; VCC = 2.3V; Full temp range | 6 |
| High-level output voltage | VOH | 2.4 | | | V | IOH = -16mA; VCC = 3V; Full temp range | 6 |
| High-level output voltage | VOH | 2.3 | | | V | IOH = -24mA; VCC = 3V; Full temp range | 6 |
| High-level output voltage | VOH | 3.8 | | | V | IOH = -32mA; VCC = 4.5V; Full temp range | 6 |
| Low-level output voltage | VOL | | | 0.1 | V | IOL = 100μA; VCC = 1.65V to 5.5V; Full temp range | 6 |
| Low-level output voltage | VOL | | | 0.45 | V | IOL = 4mA; VCC = 1.65V; Full temp range | 6 |
| Low-level output voltage | VOL | | | 0.3 | V | IOL = 8mA; VCC = 2.3V; Full temp range | 6 |
| Low-level output voltage | VOL | | | 0.4 | V | IOL = 16mA; VCC = 3V; Full temp range | 6 |
| Low-level output voltage | VOL | | | 0.55 | V | IOL = 24mA; VCC = 3V; Full temp range | 6 |
| Input leakage current, A or OE inputs | II | -1 | 0.1 | 1 | µA | VI=5.5V or GND; VCC 0V to 5.5V; +25°C | 6 |
| Input leakage current, A or OE inputs | II | -5 | | 5 | µA | VI=5.5V or GND; VCC 0V to 5.5V; Full temp range | 6 |
| Power-off leakage current | Ioff | -1 | 0.1 | 1 | µA | VI or VO=5.5V; VCC=0V; +25°C | 6 |
| Power-off leakage current | Ioff | -10 | | 10 | µA | VI or VO=5.5V; VCC=0V; Full temp range | 6 |
| High-impedance output current | IOZ | | | 10 | µA | VO=0V to 5.5V; VCC=3.6V; Full temp range | 6 |
| Supply current | ICC | | 0.1 | 1 | µA | VI=5.5V or GND, IO=0; VCC 1.65V to 5.5V; +25°C | 6 |
| Supply current | ICC | | | 10 | µA | VI=5.5V or GND, IO=0; VCC 1.65V to 5.5V; Full temp range | 6 |
| Additional supply current per input | ΔICC | | | 500 | µA | One input at VCC-0.6V, other inputs at VCC or GND; VCC 3V to 5.5V; Full temp range | 6 |
| Supply voltage range | VCC | -0.5 | | 6.5 | V | | 4 |
| Input voltage range | VI | -0.5 | | 6.5 | V | | 4 |
| Voltage range applied to any output in high-impedance or power-off state | Vo | -0.5 | | 6.5 | V | | 4 |
| Voltage range applied to any output in high or low state | Vo | -0.5 | | | V | | 4 |
| Input clamp current | IIK | -50 | | | mA | VI<0 | 4 |
| Output clamp current | IOK | -50 | | | mA | VO<0 | 4 |
| Continuous output current | IO | -50 | | 50 | mA | | 4 |
| Continuous current through VCC or GND | | -100 | | 100 | mA | | 4 |
| Junction temperature | TJ | -65 | | 150 | °C | | 4 |
| Storage temperature | Tstg | -65 | | 150 | °C | | 4 |
| Electrostatic discharge, human-body model | V(ESD) | -8000 | | 8000 | V | Human-body model (HBM) | 4 |
| Electrostatic discharge, machine model | V(ESD) | -500 | | 500 | V | Machine model (MM) | 4 |
| Junction-to-ambient thermal resistance | RϴJA | | 141.2 | | °C/W | TSSOP-14 | 4 |
| Junction-to-case (top) thermal resistance | RϴJC(top) | | 78.8 | | °C/W | TSSOP-14 | 4 |
| Junction-to-board thermal resistance | RϴJB | | 85.8 | | °C/W | TSSOP-14 | 4 |
| Junction-to-top characterization parameter | ΨJT | | 27.7 | | °C/W | TSSOP-14 | 4 |
| Junction-to-board characterization parameter | ΨJB | | 85.5 | | °C/W | TSSOP-14 | 4 |
## CAD (KiCad official)
- Symbol: `RS4G125XQ`
- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`
- 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files: `rs4g125xq-etched.step` / `rs4g125xq-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rs4g125xq.step` / `rs4g125xq.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Jiangsu RUNIC Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589839563033382912) (11 pp, sha256 `5e8a48a04dd1d90a`, 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/rs4g125xq-datasheet.pdf)