SN74LVC2T45DCUR

@@ -0,0 +1,51 @@+# SN74LVC2T45DCUR++**Texas Instruments** · Buffer/Driver/Transceiver · VSSOP-8++SN74LVC2T45DCUR 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 | VCCA | power_in | A-port supply rail. Accepts 1.65 V to 5.5 V and sets the A-side logic level as well as the DIR input reference. Must be powered up before or with VCCB. |+| 2 | A1 | bidirectional | Bit-1 data I/O on the A port, referenced to VCCA (1.65-5.5 V). Acts as input when DIR = H (A->B) and as 3-state output when DIR = L (B->A). Input circuit is always active and must be held at a valid level. |+| 3 | A2 | bidirectional | Bit-2 data I/O on the A port, referenced to VCCA (1.65-5.5 V). Acts as input when DIR = H (A->B) and as 3-state output when DIR = L (B->A). Input circuit is always active and must be held at a valid level. |+| 4 | GND | power_in | Device ground. Must be connected before any supply rail is applied per the power-up sequence. |+| 5 | DIR | input | Direction-control input, referenced to VCCA. DIR = H transmits A -> B (B outputs enabled); DIR = L transmits B -> A (A outputs enabled). Input circuit is always active and must not float. |+| 6 | B2 | bidirectional | Bit-2 data I/O on the B port, referenced to VCCB (1.65-5.5 V). Acts as output when DIR = H and as 3-state input when DIR = L. 3-state; both ports go high-impedance if either VCC is at GND. |+| 7 | B1 | bidirectional | Bit-1 data I/O on the B port, referenced to VCCB (1.65-5.5 V). Acts as output when DIR = H and as 3-state input when DIR = L. 3-state; both ports go high-impedance if either VCC is at GND. |+| 8 | VCCB | power_in | B-port supply rail. Accepts 1.65 V to 5.5 V and sets the B-side logic level. May be ramped up along with or after VCCA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VSSOP-8 |+| Category | Logic |+| Pins | 8 |++## Ordering variants++- `SN74LVC2T45DCURDCUR`+- `SN74LVC2T45DCURDCUT`+- `SN74LVC2T45DCURDCTR`+- `SN74LVC2T45DCURDCTT`+- `SN74LVC2T45DCURYZPR`++## CAD (KiCad official)++- Symbol: `SN74LVC2T45DCUR`+- 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](https://www.ti.com/lit/ds/symlink/sn74lvc2t45dcur.pdf) (26 pp, sha256 `8d9730a9217e2efc`, retrieved 2026-08-17, tier: manufacturer)+- **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/sn74lvc2t45dcur-datasheet.pdf)

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