RS2T45XM

@@ -0,0 +1,51 @@+# RS2T45XM++**Jiangsu RUNIC Tech** · Gates · MSOP-8++RS2T45XM from Jiangsu RUNIC Tech, in a MSOP-8. 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 voltage rail. Recommended operating range 1.65V ≤ VCCA ≤ 5.5V. DIR input threshold is referenced to VCCA. |+| 2 | A1 | bidirectional | A-port bidirectional data I/O bit 1. Logic levels referenced to VCCA. Drives up to ±24mA at 3V (±32mA at 4.5-5.5V). High-Z when DIR is high (A drives to B) is disabled - active when DIR=L (B→A). |+| 3 | A2 | bidirectional | A-port bidirectional data I/O bit 2. Logic levels referenced to VCCA. Drives up to ±24mA at 3V. |+| 4 | GND | power_in | Device ground return, 0V reference for both supplies. When either VCCA or VCCB is at GND the device enters suspend mode. |+| 5 | DIR | input | Direction control input, referenced to VCCA. DIR=L → B bus drives to A bus (A outputs enabled, B outputs Hi-Z); DIR=H → A drives to B (B outputs enabled, A outputs Hi-Z). Must be held at valid H/L to prevent excess ICC. |+| 6 | B2 | bidirectional | B-port bidirectional data I/O bit 2. Logic levels referenced to VCCB (1.65V-5.5V). |+| 7 | B1 | bidirectional | B-port bidirectional data I/O bit 1. Logic levels referenced to VCCB. |+| 8 | VCCB | power_in | B-port supply voltage rail. Recommended operating range 1.65V ≤ VCCB ≤ 5.5V. Either VCCA or VCCB may be ramped first (no sequencing required). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Jiangsu RUNIC Tech |+| Package | MSOP-8 |+| Category | Logic |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `RS2T45XM`+- `RS2T45XMXH8`+- `RS2T45XMXVS8`++## CAD (KiCad official)++- Symbol: `RS2T45XM`+- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`+- 3D model: MSOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Jiangsu RUNIC Tech datasheet](docs/rs2t45xm-datasheet.pdf) (17 pp, sha256 `e02b170617fa8783`, 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/rs2t45xm-datasheet.pdf)

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