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RS2251XTSS16-Q1
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Jiangsu RUNIC Tech Analog Switches, Multiplexers, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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RS2251XTSS16-Q1
Jiangsu RUNIC Tech · Analog Switches, Multiplexers · TSSOP-16
RS2251XTSS16-Q1 from Jiangsu RUNIC Tech, in a TSSOP-16. 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 | X4 | passive | Analog switch input X4; analog signal range is GND to VCC, and input and output pins are interchangeable so signals pass in either direction. |
| 2 | X6 | passive | Analog switch input X6; analog signal range is GND to VCC, and signals pass equally well in either direction. |
| 3 | X | passive | Common analog switch output X, which carries the selected channel (X0-X7) and is interchangeable with the inputs. |
| 4 | X7 | passive | Analog switch input X7; analog signal range is GND to VCC, and signals pass equally well in either direction. |
| 5 | X5 | passive | Analog switch input X5; analog signal range is GND to VCC, and signals pass equally well in either direction. |
| 6 | ENABLE | input | Digital enable input, normally connected to GND; a logic 1 on this pin turns all channels off (function table shows NONE). |
| 7 | NC | unconnected | No connect; leave this pin unconnected. |
| 8 | GND | power_in | Ground, connect to digital ground. |
| 9 | C | input | Digital address C input (binary channel select, MSB); unused digital inputs must be held at VCC or GND for proper operation. |
| 10 | B | input | Digital address B input (binary channel select); unused digital inputs must be held at VCC or GND for proper operation. |
| 11 | A | input | Digital address A input (binary channel select, LSB); unused digital inputs must be held at VCC or GND for proper operation. |
| 12 | X3 | passive | Analog switch input X3; analog signal range is GND to VCC, and signals pass equally well in either direction. |
| 13 | X0 | passive | Analog switch input X0; analog signal range is GND to VCC, and signals pass equally well in either direction. |
| 14 | X1 | passive | Analog switch input X1; analog signal range is GND to VCC, and signals pass equally well in either direction. |
| 15 | X2 | passive | Analog switch input X2; analog signal range is GND to VCC, and signals pass equally well in either direction. |
| 16 | VCC | power_in | Positive analog and digital supply voltage input, specified at 2.5 V to 5.5 V with absolute maximum of 6 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Jiangsu RUNIC Tech |
| Package | TSSOP-16 |
| Category | Interface |
| Pins | 16 |
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 (absolute maximum) | VCC | -0.3 | 6 | V | 3 | ||
| Input Voltage, all inputs (absolute maximum) | VIN | -0.3 | V | All inputs; printed max is VCC+0.3 | 3 | ||
| Switch Input Current (absolute maximum) | IIN | -20 | 20 | mA | Any one input | 3 | |
| Peak Switch Current (absolute maximum) | IPEAK | -40 | 40 | mA | Pulsed at 1ms duration, <10% duty cycle | 3 | |
| Junction Temperature (absolute maximum) | TJ | 150 | °C | 3 | |||
| Storage Temperature (absolute maximum) | Tstg | -65 | 150 | °C | 3 | ||
| Electrostatic discharge, Human-body model | V(ESD) HBM | -3000 | 3000 | V | Printed as ±3000 V | 3 | |
| Electrostatic discharge, Machine model | V(ESD) MM | -200 | 200 | V | Printed as ±200 V | 3 | |
| Supply Voltage (recommended) | VCC | 2.5 | 5.5 | V | 3 | ||
| Operating temperature (recommended) | TA | -40 | 125 | °C | Free-air | 3 | |
| Junction-to-ambient thermal resistance, TSSOP-16 | RϴJA | 111.3 | °C/W | TSSOP-16 column | 3 | ||
| Junction-to-case (top) thermal resistance, TSSOP-16 | RϴJC(top) | 45.3 | °C/W | TSSOP-16 column | 3 | ||
| Junction-to-board thermal resistance, TSSOP-16 | RϴJB | 56.9 | °C/W | TSSOP-16 column | 3 | ||
| Junction-to-top characterization parameter, TSSOP-16 | ѰJT | 5.4 | °C/W | TSSOP-16 column | 3 | ||
| Junction-to-board characterization parameter, TSSOP-16 | ѰJB | 56.3 | °C/W | TSSOP-16 column | 3 | ||
| On-Resistance | RON | 48 | 58 | Ω | VCC=5V, Ix=1mA, +25°C | 5 | |
| On-Resistance (full temperature range) | RON | 67 | Ω | VCC=5V, Ix=1mA, FULL -40°C to +125°C | 5 | ||
| On-Resistance | RON | 100 | 130 | Ω | VCC=3.3V, Ix=1mA, +25°C | 5 | |
| On-Resistance (full temperature range) | RON | 140 | Ω | VCC=3.3V, Ix=1mA, FULL -40°C to +125°C | 5 | ||
| On-Resistance Match Between Channels | ΔRON | 1.5 | 5 | Ω | VCC=5V, Ix=1mA, Switch ON, +25°C | 5 | |
| On-Resistance Match Between Channels (full temperature range) | ΔRON | 5.3 | Ω | VCC=5V, Ix=1mA, Switch ON, FULL -40°C to +125°C | 5 | ||
| On-Resistance Flatness | RFLAT(ON) | 17 | 25 | Ω | VCC=5V, Ix=1mA, Switch ON, +25°C | 5 | |
| On-Resistance Flatness (full temperature range) | RFLAT(ON) | 28 | Ω | VCC=5V, Ix=1mA, Switch ON, FULL -40°C to +125°C | 5 | ||
| X_ Off Leakage Current | IX(OFF) | 1 | 1000 | nA | VCC=5V, VX=4.5V or 0V, +25°C | 5 | |
| Input-Current High | IAH, IBH, ICH, IENABLE(H) | 1 | 1000 | nA | VA, VB, VC, VENABLE = VCC, 3.3V to 5V, +25°C | 5 | |
| Input-Current Low | IAL, IBL, ICL, IENABLE(L) | 1 | 1000 | nA | VA, VB, VC, VENABLE = 0V, 3.3V to 5V, +25°C | 5 | |
| Power Supply Range | VCC | 2.5 | 5.5 | V | FULL | 6 | |
| Power Supply Current | ICC | 0.001 | 6 | μA | VCC=5.0V, VA, VB, VC, VENABLE = VCC or 0, +25°C | 6 | |
| Power Supply Current | ICC | 0.001 | 3 | μA | VCC=3.3V, VA, VB, VC, VENABLE = VCC or 0, +25°C | 6 |
CAD (KiCad official)
- Symbol:
RS2251XTSS16-Q1 - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
rs2251xtss16-q1-etched.step/rs2251xtss16-q1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rs2251xtss16-q1.step/rs2251xtss16-q1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Jiangsu RUNIC Tech datasheet (14 pp, sha256
64ffabd09559d39d, 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).
# RS2251XTSS16-Q1
**Jiangsu RUNIC Tech** · Analog Switches, Multiplexers · TSSOP-16
RS2251XTSS16-Q1 from Jiangsu RUNIC Tech, in a TSSOP-16. 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 | X4 | passive | Analog switch input X4; analog signal range is GND to VCC, and input and output pins are interchangeable so signals pass in either direction. |
| 2 | X6 | passive | Analog switch input X6; analog signal range is GND to VCC, and signals pass equally well in either direction. |
| 3 | X | passive | Common analog switch output X, which carries the selected channel (X0-X7) and is interchangeable with the inputs. |
| 4 | X7 | passive | Analog switch input X7; analog signal range is GND to VCC, and signals pass equally well in either direction. |
| 5 | X5 | passive | Analog switch input X5; analog signal range is GND to VCC, and signals pass equally well in either direction. |
| 6 | ENABLE | input | Digital enable input, normally connected to GND; a logic 1 on this pin turns all channels off (function table shows NONE). |
| 7 | NC | unconnected | No connect; leave this pin unconnected. |
| 8 | GND | power_in | Ground, connect to digital ground. |
| 9 | C | input | Digital address C input (binary channel select, MSB); unused digital inputs must be held at VCC or GND for proper operation. |
| 10 | B | input | Digital address B input (binary channel select); unused digital inputs must be held at VCC or GND for proper operation. |
| 11 | A | input | Digital address A input (binary channel select, LSB); unused digital inputs must be held at VCC or GND for proper operation. |
| 12 | X3 | passive | Analog switch input X3; analog signal range is GND to VCC, and signals pass equally well in either direction. |
| 13 | X0 | passive | Analog switch input X0; analog signal range is GND to VCC, and signals pass equally well in either direction. |
| 14 | X1 | passive | Analog switch input X1; analog signal range is GND to VCC, and signals pass equally well in either direction. |
| 15 | X2 | passive | Analog switch input X2; analog signal range is GND to VCC, and signals pass equally well in either direction. |
| 16 | VCC | power_in | Positive analog and digital supply voltage input, specified at 2.5 V to 5.5 V with absolute maximum of 6 V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Jiangsu RUNIC Tech |
| Package | TSSOP-16 |
| Category | Interface |
| Pins | 16 |
## 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 (absolute maximum) | VCC | -0.3 | | 6 | V | | 3 |
| Input Voltage, all inputs (absolute maximum) | VIN | -0.3 | | | V | All inputs; printed max is VCC+0.3 | 3 |
| Switch Input Current (absolute maximum) | IIN | -20 | | 20 | mA | Any one input | 3 |
| Peak Switch Current (absolute maximum) | IPEAK | -40 | | 40 | mA | Pulsed at 1ms duration, <10% duty cycle | 3 |
| Junction Temperature (absolute maximum) | TJ | | | 150 | °C | | 3 |
| Storage Temperature (absolute maximum) | Tstg | -65 | | 150 | °C | | 3 |
| Electrostatic discharge, Human-body model | V(ESD) HBM | -3000 | | 3000 | V | Printed as ±3000 V | 3 |
| Electrostatic discharge, Machine model | V(ESD) MM | -200 | | 200 | V | Printed as ±200 V | 3 |
| Supply Voltage (recommended) | VCC | 2.5 | | 5.5 | V | | 3 |
| Operating temperature (recommended) | TA | -40 | | 125 | °C | Free-air | 3 |
| Junction-to-ambient thermal resistance, TSSOP-16 | RϴJA | | 111.3 | | °C/W | TSSOP-16 column | 3 |
| Junction-to-case (top) thermal resistance, TSSOP-16 | RϴJC(top) | | 45.3 | | °C/W | TSSOP-16 column | 3 |
| Junction-to-board thermal resistance, TSSOP-16 | RϴJB | | 56.9 | | °C/W | TSSOP-16 column | 3 |
| Junction-to-top characterization parameter, TSSOP-16 | ѰJT | | 5.4 | | °C/W | TSSOP-16 column | 3 |
| Junction-to-board characterization parameter, TSSOP-16 | ѰJB | | 56.3 | | °C/W | TSSOP-16 column | 3 |
| On-Resistance | RON | | 48 | 58 | Ω | VCC=5V, Ix=1mA, +25°C | 5 |
| On-Resistance (full temperature range) | RON | | | 67 | Ω | VCC=5V, Ix=1mA, FULL -40°C to +125°C | 5 |
| On-Resistance | RON | | 100 | 130 | Ω | VCC=3.3V, Ix=1mA, +25°C | 5 |
| On-Resistance (full temperature range) | RON | | | 140 | Ω | VCC=3.3V, Ix=1mA, FULL -40°C to +125°C | 5 |
| On-Resistance Match Between Channels | ΔRON | | 1.5 | 5 | Ω | VCC=5V, Ix=1mA, Switch ON, +25°C | 5 |
| On-Resistance Match Between Channels (full temperature range) | ΔRON | | | 5.3 | Ω | VCC=5V, Ix=1mA, Switch ON, FULL -40°C to +125°C | 5 |
| On-Resistance Flatness | RFLAT(ON) | | 17 | 25 | Ω | VCC=5V, Ix=1mA, Switch ON, +25°C | 5 |
| On-Resistance Flatness (full temperature range) | RFLAT(ON) | | | 28 | Ω | VCC=5V, Ix=1mA, Switch ON, FULL -40°C to +125°C | 5 |
| X_ Off Leakage Current | IX(OFF) | | 1 | 1000 | nA | VCC=5V, VX=4.5V or 0V, +25°C | 5 |
| Input-Current High | IAH, IBH, ICH, IENABLE(H) | | 1 | 1000 | nA | VA, VB, VC, VENABLE = VCC, 3.3V to 5V, +25°C | 5 |
| Input-Current Low | IAL, IBL, ICL, IENABLE(L) | | 1 | 1000 | nA | VA, VB, VC, VENABLE = 0V, 3.3V to 5V, +25°C | 5 |
| Power Supply Range | VCC | 2.5 | | 5.5 | V | FULL | 6 |
| Power Supply Current | ICC | | 0.001 | 6 | μA | VCC=5.0V, VA, VB, VC, VENABLE = VCC or 0, +25°C | 6 |
| Power Supply Current | ICC | | 0.001 | 3 | μA | VCC=3.3V, VA, VB, VC, VENABLE = VCC or 0, +25°C | 6 |
## CAD (KiCad official)
- Symbol: `RS2251XTSS16-Q1`
- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`
- 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files: `rs2251xtss16-q1-etched.step` / `rs2251xtss16-q1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rs2251xtss16-q1.step` / `rs2251xtss16-q1.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/8602881167129387008) (14 pp, sha256 `64ffabd09559d39d`, 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/rs2251xtss16-q1-datasheet.pdf)