TCA39306DCUR

@@ -0,0 +1,51 @@+# TCA39306DCUR++**Texas Instruments** · Translators / Level Shifters · VSSOP-8++TCA39306DCUR from Texas Instruments, in a VSSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | GND | power_in | Ground reference, 0 V. Common return for both reference rails and internal logic. |+| 2 | VREF1 | power_in | Low-side reference supply for SCL1/SDA1. Recommended operating range 0 V to 5.5 V; supports translation down to 0.85 V (must be at least VREF2 - 0.6 V). |+| 3 | SCL1 | bidirectional | Low-voltage side serial clock line of the I2C/SMBus/I3C bus. Open-drain pass-gate connection to SCL2 when EN is high. |+| 4 | SDA1 | bidirectional | Low-voltage side serial data line of the I2C/SMBus/I3C bus. Open-drain pass-gate connection to SDA2 when EN is high. |+| 5 | SDA2 | bidirectional | High-voltage side serial data line of the I2C/SMBus/I3C bus. Open-drain pass-gate connection to SDA1 when EN is high. |+| 6 | SCL2 | bidirectional | High-voltage side serial clock line of the I2C/SMBus/I3C bus. Open-drain pass-gate connection to SCL1 when EN is high. |+| 7 | VREF2 | power_in | High-side reference supply for SCL2/SDA2. Recommended operating range 0 V to 5.5 V (must be at least VREF1 + 0.6 V). |+| 8 | EN | input | Switch enable input. Drive high (>=1.5 V, up to 5.5 V) to connect SCL1<->SCL2 and SDA1<->SDA2 through the pass-gate switches; drive low to isolate the two sides in a high-impedance state. Typically tied to VREF2 through a 200 kOhm pull-up. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VSSOP-8 |+| Category | Logic |+| Pins | 8 |++## Ordering variants++- `TCA39306DCURDCU`+- `TCA39306DCURDCUR`+- `TCA39306DCURDDF`+- `TCA39306DCURDTM`++## CAD (KiCad official)++- Symbol: `TCA39306DCUR`+- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`+- 3D model: VSSOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](docs/tca39306dcur-datasheet.pdf) (28 pp, sha256 `952449a0d65e2f3b`, retrieved 2026-08-17, 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:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/tca39306dcur-datasheet.pdf)

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