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SN74LVCC3245APWR
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Texas Instruments Buffer/Driver/Transceiver, TSSOP-24. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+72@@ -0,0 +1,72 @@+# SN74LVCC3245APWR++**Texas Instruments** · Buffer/Driver/Transceiver · TSSOP-24++SN74LVCC3245APWR from Texas Instruments, in a TSSOP-24. 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, 2.3 V to 3.6 V. Sets VIH/VIL thresholds for control inputs and A-port output HIGH level. |+| 2 | DIR | input | Direction-control input (referenced to VCCA). DIR = HIGH transfers data A -> B; DIR = LOW transfers data B -> A. |+| 3 | A1 | bidirectional | A-port channel 1 I/O. Referenced to VCCA supply rail; high-impedance when OE is HIGH or during VCC isolation. |+| 4 | A2 | bidirectional | A-port channel 2 I/O. Referenced to VCCA supply rail; high-impedance when OE is HIGH or during VCC isolation. |+| 5 | A3 | bidirectional | A-port channel 3 I/O. Referenced to VCCA supply rail; high-impedance when OE is HIGH or during VCC isolation. |+| 6 | A4 | bidirectional | A-port channel 4 I/O. Referenced to VCCA supply rail; high-impedance when OE is HIGH or during VCC isolation. |+| 7 | A5 | bidirectional | A-port channel 5 I/O. Referenced to VCCA supply rail; high-impedance when OE is HIGH or during VCC isolation. |+| 8 | A6 | bidirectional | A-port channel 6 I/O. Referenced to VCCA supply rail; high-impedance when OE is HIGH or during VCC isolation. |+| 9 | A7 | bidirectional | A-port channel 7 I/O. Referenced to VCCA supply rail; high-impedance when OE is HIGH or during VCC isolation. |+| 10 | A8 | bidirectional | A-port channel 8 I/O. Referenced to VCCA supply rail; high-impedance when OE is HIGH or during VCC isolation. |+| 11 | GND | power_in | Ground reference. Tie all three GND pins (11, 12, 13) to the board ground plane. |+| 12 | GND | power_in | Ground reference. Tie all three GND pins (11, 12, 13) to the board ground plane. |+| 13 | GND | power_in | Ground reference. Tie all three GND pins (11, 12, 13) to the board ground plane. |+| 14 | B8 | bidirectional | B-port channel 8 I/O. Referenced to VCCB supply rail (3 V to 5.5 V); high-impedance when OE is HIGH or during VCC isolation. |+| 15 | B7 | bidirectional | B-port channel 7 I/O. Referenced to VCCB supply rail (3 V to 5.5 V); high-impedance when OE is HIGH or during VCC isolation. |+| 16 | B6 | bidirectional | B-port channel 6 I/O. Referenced to VCCB supply rail (3 V to 5.5 V); high-impedance when OE is HIGH or during VCC isolation. |+| 17 | B5 | bidirectional | B-port channel 5 I/O. Referenced to VCCB supply rail (3 V to 5.5 V); high-impedance when OE is HIGH or during VCC isolation. |+| 18 | B4 | bidirectional | B-port channel 4 I/O. Referenced to VCCB supply rail (3 V to 5.5 V); high-impedance when OE is HIGH or during VCC isolation. |+| 19 | B3 | bidirectional | B-port channel 3 I/O. Referenced to VCCB supply rail (3 V to 5.5 V); high-impedance when OE is HIGH or during VCC isolation. |+| 20 | B2 | bidirectional | B-port channel 2 I/O. Referenced to VCCB supply rail (3 V to 5.5 V); high-impedance when OE is HIGH or during VCC isolation. |+| 21 | B1 | bidirectional | B-port channel 1 I/O. Referenced to VCCB supply rail (3 V to 5.5 V); high-impedance when OE is HIGH or during VCC isolation. |+| 22 | OE | input | Output-enable, active LOW (referenced to VCCA). OE = LOW enables the transceiver; OE = HIGH puts all A and B I/O in high impedance. |+| 23 | NC | unconnected | No internal connection. Leave floating or tie to ground. |+| 24 | VCCB | power_in | B-port supply rail, 3 V to 5.5 V. Sets B-port output HIGH level; can operate independently of VCCA for level translation. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-24 |+| Category | Logic |+| Pins | 24 |++## Ordering variants++- `SN74LVCC3245APWRPW`+- `SN74LVCC3245APWRPWR`+- `SN74LVCC3245APWRDB`+- `SN74LVCC3245APWRDBR`+- `SN74LVCC3245APWRDW`+- `SN74LVCC3245APWRDWR`+- `SN74LVCC3245APWRDBQ`+- `SN74LVCC3245APWRDBQR`+- `SN74LVCC3245APWRNS`+- `SN74LVCC3245APWRNSR`++## CAD (KiCad official)++- Symbol: `SN74LVCC3245APWR`+- Footprint: `Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm`+- 3D model: TSSOP-24 (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/sn74lvcc3245a.pdf) (32 pp, sha256 `7db28552f9c96869`, 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/sn74lvcc3245apwr-datasheet.pdf)
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