# LSF0102DCUR

**Texas Instruments** · Translators, Level Shifters · VSSOP-8-0.5mm

LSF0102DCUR from Texas Instruments, in a VSSOP-8-0.5mm. 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 | GND | power_in | Ground reference pin for the device. |
| 2 | Vref_A | power_in | A-side reference supply voltage; it must be 0.9 V minimum and is the lowest voltage level for all inputs and outputs (recommended range 0.9 V to 5.5 V). |
| 3 | A1 | bidirectional | Auto-bidirectional data port A1 on the low-voltage side, with recommended input/output voltage of 0 V to 5.5 V. |
| 4 | A2 | bidirectional | Auto-bidirectional data port A2 on the low-voltage side, with recommended input/output voltage of 0 V to 5.5 V. |
| 5 | B2 | bidirectional | Auto-bidirectional data port B2 on the high-voltage side, with recommended input/output voltage of 0 V to 5.5 V. |
| 6 | B1 | bidirectional | Auto-bidirectional data port B1 on the high-voltage side, with recommended input/output voltage of 0 V to 5.5 V. |
| 7 | Vref_B | power_in | B-side reference supply voltage; it must be at least Vref_A + 0.8 V and at most 5.5 V, and it is connected to EN through a 200 kΩ bias resistor. |
| 8 | EN | input | Enable input that must be connected directly to Vref_B and pulled up through a high-value (200 kΩ) bias resistor; driving it low places all I/O pins in high-impedance state. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8-0.5mm |
| Category | Logic |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input voltage | VI | -0.5 |  | 7 | V |  | 5 |
| Input/output voltage | VI/O | -0.5 |  | 7 | V |  | 5 |
| Continuous channel current |  |  |  | 128 | mA |  | 5 |
| Input clamp current | IIK | -50 |  |  | mA | VI < 0 | 5 |
| Junction temperature | TJ |  |  | 150 | °C |  | 5 |
| Storage temperature range | Tstg | -65 |  | 150 | °C |  | 5 |
| Electrostatic discharge, human body model (HBM) | V(ESD) | -2000 |  | 2000 | V | HBM, ANSI/ESDA/JEDEC JS-001 | 5 |
| Electrostatic discharge, charged device model (CDM) | V(ESD) | -1000 |  | 1000 | V | CDM, JEDEC JESD22-C101 | 5 |
| Input/output voltage | VI/O | 0 |  | 5.5 | V |  | 5 |
| Reference voltage | Vref_A/B/EN | 0 |  | 5.5 | V |  | 5 |
| Pass transistor current | IPASS |  |  | 64 | mA |  | 5 |
| Operating free-air temperature | TA | -40 |  | 125 | °C | 自然通风 | 5 |
| Input clamp voltage | VIK |  |  | -1.2 | V | II = -18mA， VEN = 0 | 6 |
| High-level input leakage current | IIH |  |  | 5 | µA | VI = 5V VEN = 0 | 6 |
| Supply current | ICC |  |  | 6 | µA | Vref_B = VEN = 5.5V，Vref_A = 4.5V，IO = 0，VI = VCC 或 GND | 6 |
| Off-state I/O capacitance | Cio(off) |  | 4 | 6 | pF | VO = 3V 或 0V， VEN = 0 | 6 |
| On-state I/O capacitance | Cio(on) |  | 10.5 | 12.5 | pF | VO = 3V 或 0V， VEN = 3V | 6 |
| Junction-to-ambient thermal resistance | RθJA |  | 279.7 |  | °C/W |  | 5 |
| Junction-to-case (top) thermal resistance | RθJC(top) |  | 129.9 |  | °C/W |  | 5 |
| Junction-to-board thermal resistance | RθJB |  | 191.3 |  | °C/W |  | 5 |
| Junction-to-top characterization parameter | ψJT |  | 66.3 |  | °C/W |  | 5 |
| Junction-to-board characterization parameter | ψJB |  | 190.1 |  | °C/W |  | 5 |

## CAD (KiCad official)

- Symbol: `LSF0102DCUR`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8-0.5mm (KiCad packages3D, STEP)
- 3D model files: `lsf0102dcur-etched.step` / `lsf0102dcur-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lsf0102dcur.step` / `lsf0102dcur.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lsf0102) (42 pp, sha256 `5df9cb9ffbb043eb`, retrieved 2026-10-17, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/lsf0102dcur-datasheet.pdf)