sn74hc126pwr

@@ -0,0 +1,62 @@+# SN74HC126PWR++**Texas Instruments** · Buffer/Driver/Transceiver · TSSOP-14++SN74HC126PWR from Texas Instruments, in a TSSOP-14. 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 | 1OE | input | Channel 1 output-enable input (active high). When high, buffer 1 output 1Y drives the logic value of 1A; when low, 1Y enters the high-impedance state. |+| 2 | 1A | input | Channel 1 buffer data input. Logic level driven to 1Y when 1OE is high. CMOS input, VIH/VIL scale with VCC (e.g., 3.15 V / 1.35 V at VCC = 4.5 V). |+| 3 | 1Y | tri_state | Channel 1 buffer output (3-state). Follows 1A when 1OE = H; high-impedance when 1OE = L. Sources/sinks up to ±6 mA at VCC = 4.5 V. |+| 4 | 2OE | input | Channel 2 output-enable input (active high). When high, 2Y drives the logic value of 2A; when low, 2Y is high-impedance. |+| 5 | 2A | input | Channel 2 buffer data input. Logic level driven to 2Y when 2OE is high. |+| 6 | 2Y | tri_state | Channel 2 buffer output (3-state). Follows 2A when 2OE = H; high-impedance when 2OE = L. |+| 7 | GND | power_in | Ground reference (0 V). Connect to the system ground. |+| 8 | 3Y | tri_state | Channel 3 buffer output (3-state). Follows 3A when 3OE = H; high-impedance when 3OE = L. |+| 9 | 3A | input | Channel 3 buffer data input. Logic level driven to 3Y when 3OE is high. |+| 10 | 3OE | input | Channel 3 output-enable input (active high). When high, 3Y drives 3A; when low, 3Y is high-impedance. |+| 11 | 4Y | tri_state | Channel 4 buffer output (3-state). Follows 4A when 4OE = H; high-impedance when 4OE = L. |+| 12 | 4A | input | Channel 4 buffer data input. Logic level driven to 4Y when 4OE is high. |+| 13 | 4OE | input | Channel 4 output-enable input (active high). When high, 4Y drives 4A; when low, 4Y is high-impedance. |+| 14 | VCC | power_in | Positive supply voltage. Recommended operating range 2 V to 6 V (5 V nominal). Bypass with a local 0.1 µF capacitor to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-14 |+| Category | Logic |+| Pins | 14 |++## Ordering variants++- `SN74HC126PWR`+- `SN74HC126PWRD`+- `SN74HC126PWRDR`+- `SN74HC126PWRDB`+- `SN74HC126PWRDBR`+- `SN74HC126PWRN`+- `SN74HC126PWRNS`+- `SN74HC126PWRNSR`+- `SN74HC126PWRJ`+- `SN74HC126PWRFK`++## CAD (KiCad official)++- Symbol: `SN74HC126PWR`+- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`+- 3D model: TSSOP-14 (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/sn74hc126.pdf) (None pp, sha256 `2bc6c4a397e0196c`, 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/sn74hc126pwr-datasheet.pdf)

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