223B PSSY

@@ -0,0 +1,42 @@+# 223B PSSY++**TDSEMIC 223B PSSY** · Touch Sensors · SOT-23-6++223B PSSY from TDSEMIC 223B PSSY, 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 up to ~10 mA sink (VOL=0.6 V) and ~6 mA source (VOH=2.4 V) at VDD=3 V. Response time up to 60 ms. Polarity and behavior (synchronous vs. level-toggle) set by STG/SLH. |+| 2 | GND | power_in | Ground / VSS reference. |+| 3 | SO | input | Touch-sense input; connects to the external touch pad. An optional series resistor Rs (100 Ω-1 kΩ) between the pad and this pin improves noise immunity. Sensitivity is tuned with a capacitor C1 (0-50 pF) from this pin to GND - larger C1 lowers sensitivity, smaller C1 raises it. |+| 4 | SLH | input | Output-level select (must NOT be left floating). Tie to GND for active-high output on touch (idle low); tie to VDD for active-low output on touch (idle high). Output high level tracks VDD. |+| 5 | VDD | power_in | Positive supply. 2.0-5.5 V operating range (typ. 3.0 V), IOP ~2.5 µA typ / 7 µA max at 3.0 V. Absolute max VSS−0.3 V to VSS+5.5 V. Decouple with 100 nF + 10 µF near the pin (per application circuit). |+| 6 | STG | input | Mode-select strap (must NOT be left floating). Tie to GND for synchronous output mode (output follows touch duration, max touch time 6 s). Tie to VDD for level-toggle (self-locking) mode (output toggles on each touch, max touch time 6 s). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | TDSEMIC 223B PSSY |+| Package | SOT-23-6 |+| Category | Sensor |+| Pins | 6 |++## CAD (KiCad official)++- Symbol: `223B PSSY`+- 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 223B PSSY datasheet](docs/223b-pssy-datasheet.pdf) (6 pp, sha256 `1fc30c71aea2d2df`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/223b-pssy-datasheet.pdf)

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