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SN74AVC4T245PWR
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Texas Instruments Buffer/Driver/Transceiver, TSSOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+69@@ -0,0 +1,69 @@+# SN74AVC4T245PWR++**Texas Instruments** · Buffer/Driver/Transceiver · TSSOP-16++SN74AVC4T245PWR from Texas Instruments, in a TSSOP-16. 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 power supply. Sets the A-port I/O voltage and references the DIR and OE control inputs. Operating range 1.2V to 3.6V (absolute max 4.6V). |+| 2 | 1DIR | input | Direction-control input for the '1' 2-bit port pair (1A1/1A2 <-> 1B1/1B2). HIGH sends data from A to B, LOW sends data from B to A. Referenced to VCCA. |+| 3 | 2DIR | input | Direction-control input for the '2' 2-bit port pair (2A1/2A2 <-> 2B1/2B2). HIGH sends data from A to B, LOW sends data from B to A. Referenced to VCCA. |+| 4 | 1A1 | bidirectional | Bidirectional data I/O bit 1 of the '1' A-port. Referenced to VCCA; drives up to ~12mA at VCCA=3.3V. |+| 5 | 1A2 | bidirectional | Bidirectional data I/O bit 2 of the '1' A-port. Referenced to VCCA. |+| 6 | 2A1 | bidirectional | Bidirectional data I/O bit 1 of the '2' A-port. Referenced to VCCA. |+| 7 | 2A2 | bidirectional | Bidirectional data I/O bit 2 of the '2' A-port. Referenced to VCCA. |+| 8 | GND | power_in | Device ground reference. Both GND pins (8 and 9) must be tied to the system ground. |+| 9 | GND | power_in | Device ground reference. Both GND pins (8 and 9) must be tied to the system ground. |+| 10 | 2B2 | bidirectional | Bidirectional data I/O bit 2 of the '2' B-port. Referenced to VCCB. |+| 11 | 2B1 | bidirectional | Bidirectional data I/O bit 1 of the '2' B-port. Referenced to VCCB. |+| 12 | 1B2 | bidirectional | Bidirectional data I/O bit 2 of the '1' B-port. Referenced to VCCB. |+| 13 | 1B1 | bidirectional | Bidirectional data I/O bit 1 of the '1' B-port. Referenced to VCCB. |+| 14 | 2OE | input | Active-LOW output enable for the '2' port pair. Pull HIGH to place 2A1/2A2/2B1/2B2 in the high-impedance (3-state) mode. Referenced to VCCA. |+| 15 | 1OE | input | Active-LOW output enable for the '1' port pair. Pull HIGH to place 1A1/1A2/1B1/1B2 in the high-impedance (3-state) mode. Referenced to VCCA. |+| 16 | VCCB | power_in | B-port power supply. Sets the B-port I/O voltage. Operating range 1.2V to 3.6V (absolute max 4.6V). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-16 |+| Category | Logic |+| Pins | 16 |++## Ordering variants++- `SN74AVC4T245PWRPWR`+- `SN74AVC4T245PWRPW`+- `SN74AVC4T245PWRD`+- `SN74AVC4T245PWRDR`+- `SN74AVC4T245PWRDGV`+- `SN74AVC4T245PWRDGVR`+- `SN74AVC4T245PWRRGY`+- `SN74AVC4T245PWRRGYR`+- `SN74AVC4T245PWRBQB`+- `SN74AVC4T245PWRBQBR`+- `SN74AVC4T245PWRWBQB`+- `SN74AVC4T245PWRRSV`+- `SN74AVC4T245PWRRSVR`+- `SN74AVC4T245PWRDYY`+- `SN74AVC4T245PWRDYYR`++## CAD (KiCad official)++- Symbol: `SN74AVC4T245PWR`+- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`+- 3D model: TSSOP-16 (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/sn74avc4t245.pdf) (46 pp, sha256 `218e7e3a60f567bb`, 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/sn74avc4t245pwr-datasheet.pdf)
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