TTP223-BA6-TD

@@ -0,0 +1,45 @@+# TTP223-BA6-TD++**TDSEMIC** · Touch Sensors · SOT-23-6++TTP223-BA6-TD from TDSEMIC, in a SOT-23-6. 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 | OUT | output | Push-pull touch-detect output. Drives high or low on touch depending on the SLH level-select pin. Typical IOL = 10 mA at VOL = 0.6 V (VDD = 3 V); typical IOH = -6 mA at VOH = 2.4 V. Output response time up to 60 ms. |+| 2 | GND | power_in | Power ground (VSS). Reference for VDD and all logic levels. |+| 3 | SO | input | Touch sense input. Connects to the external touch pad through an optional 100-1000 ohm series resistor Rs; sensitivity is set by an external capacitor C1 (0-50 pF) from this pin to GND. Larger C1 lowers sensitivity (allows thicker overlay); smaller C1 raises sensitivity. |+| 4 | SLH | input | Output active-level select. Tie to GND for active-high output (output goes high on touch, low idle); tie to VDD for active-low output (output goes low on touch, high idle). Must NOT be left floating. |+| 5 | VDD | power_in | Positive supply, 2.0-5.5 V (typ 3.0 V). Typical IOP = 2.5 uA at VDD = 3.0 V (max 7.0 uA). Bypass with 100 nF + 10 uF close to the pin as shown in the application circuit. |+| 6 | STG | input | Mode-select input. Tie to GND for synchronous (momentary) output mode - output is asserted only while touched (max touch duration 6 s). Tie to VDD for toggle/level-latch (self-lock) mode - output toggles on each new touch. Must NOT be left floating. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | TDSEMIC |+| Package | SOT-23-6 |+| Category | Sensor |+| Pins | 6 |++## Ordering variants++- `TTP223-BA6-TDTD`++## CAD (KiCad official)++- Symbol: `TTP223-BA6-TD`+- Footprint: `Package_TO_SOT_SMD:SOT-23-6`+- 3D model: SOT-23-6 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [TDSEMIC datasheet](docs/ttp223-ba6-td-datasheet.pdf) (6 pp, sha256 `e0bc622ae69999ff`, 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/ttp223-ba6-td-datasheet.pdf)

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