74LCX244FT

@@ -0,0 +1,59 @@+# 74LCX244FT++**TOSHIBA** · Buffer/Driver/Transceiver · TSSOP-20++74LCX244FT from TOSHIBA, in a TSSOP-20. 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 | Active-low output enable for bank 1 (drives outputs 1Y1-1Y4). When low, bank-1 outputs follow their A inputs; when high, bank-1 outputs are in high-impedance (Z) state. |+| 2 | 1A1 | input | Bank 1 channel 1 data input. 5-V tolerant CMOS input; passes non-inverted to 1Y1 when 1OE is low. |+| 3 | 2Y4 | tri_state | Bank 2 channel 4 buffered output. Drives the non-inverted state of 2A4 when 2OE is low; Hi-Z when 2OE is high. IOH/IOL = 24 mA min (VCC = 3.0 V). |+| 4 | 1A2 | input | Bank 1 channel 2 data input. 5-V tolerant CMOS input; passes non-inverted to 1Y2 when 1OE is low. |+| 5 | 2Y3 | tri_state | Bank 2 channel 3 buffered output. Drives the non-inverted state of 2A3 when 2OE is low; Hi-Z when 2OE is high. |+| 6 | 1A3 | input | Bank 1 channel 3 data input. 5-V tolerant CMOS input; passes non-inverted to 1Y3 when 1OE is low. |+| 7 | 2Y2 | tri_state | Bank 2 channel 2 buffered output. Drives the non-inverted state of 2A2 when 2OE is low; Hi-Z when 2OE is high. |+| 8 | 1A4 | input | Bank 1 channel 4 data input. 5-V tolerant CMOS input; passes non-inverted to 1Y4 when 1OE is low. |+| 9 | 2Y1 | tri_state | Bank 2 channel 1 buffered output. Drives the non-inverted state of 2A1 when 2OE is low; Hi-Z when 2OE is high. |+| 10 | GND | power_in | Ground reference (0 V) for the device. |+| 11 | 2A1 | input | Bank 2 channel 1 data input. 5-V tolerant CMOS input; passes non-inverted to 2Y1 when 2OE is low. |+| 12 | 1Y4 | tri_state | Bank 1 channel 4 buffered output. Drives the non-inverted state of 1A4 when 1OE is low; Hi-Z when 1OE is high. |+| 13 | 2A2 | input | Bank 2 channel 2 data input. 5-V tolerant CMOS input; passes non-inverted to 2Y2 when 2OE is low. |+| 14 | 1Y3 | tri_state | Bank 1 channel 3 buffered output. Drives the non-inverted state of 1A3 when 1OE is low; Hi-Z when 1OE is high. |+| 15 | 2A3 | input | Bank 2 channel 3 data input. 5-V tolerant CMOS input; passes non-inverted to 2Y3 when 2OE is low. |+| 16 | 1Y2 | tri_state | Bank 1 channel 2 buffered output. Drives the non-inverted state of 1A2 when 1OE is low; Hi-Z when 1OE is high. |+| 17 | 2A4 | input | Bank 2 channel 4 data input. 5-V tolerant CMOS input; passes non-inverted to 2Y4 when 2OE is low. |+| 18 | 1Y1 | tri_state | Bank 1 channel 1 buffered output. Drives the non-inverted state of 1A1 when 1OE is low; Hi-Z when 1OE is high. |+| 19 | 2OE | input | Active-low output enable for bank 2 (drives outputs 2Y1-2Y4). When low, bank-2 outputs follow their A inputs; when high, bank-2 outputs are in high-impedance (Z) state. |+| 20 | VCC | power_in | Positive supply voltage. Operating range 1.65 to 3.6 V (data retention from 1.5 V). Inputs and outputs are 5-V tolerant regardless of VCC. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | TOSHIBA |+| Package | TSSOP-20 |+| Category | Logic |+| Pins | 20 |++## Ordering variants++- `74LCX244FTFT`++## CAD (KiCad official)++- Symbol: `74LCX244FT`+- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`+- 3D model: TSSOP-20 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [TOSHIBA datasheet](docs/74lcx244ft-datasheet.pdf) (9 pp, sha256 `869201119557fe6a`, retrieved 2026-08-17, tier: lcsc)+- **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/74lcx244ft-datasheet.pdf)

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