ICM7555M

@@ -0,0 +1,50 @@+# ICM7555M++**HGSEMI** · Timers / Clock Oscillators · SOP-8++ICM7555M from HGSEMI, in a SOP-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 | GND | power_in | Ground reference for the device. Connect to the negative supply rail (0V). |+| 2 | TRIG | input | Trigger input. A negative-going pulse below 1/3 VDD initiates the timing cycle, setting the output high and starting the timing capacitor discharge sequence. |+| 3 | OUT | output | Timer output. CMOS push-pull output that swings from near GND to near VDD, capable of sourcing/sinking modest load currents. |+| 4 | RESET | input | Active-low reset input. Pulling this pin below approximately 0.7V forces the output low and resets the internal flip-flop regardless of trigger state. Tie to VDD if unused. |+| 5 | CV | input | Control Voltage input. Provides access to the internal 2/3 VDD reference node, allowing modulation of the threshold levels. Typically bypassed to GND with a 10nF capacitor when unused. |+| 6 | THRES | input | Threshold input. When the voltage on this pin rises above 2/3 VDD, the internal flip-flop resets, driving the output low and initiating capacitor discharge. |+| 7 | DISCH | output | Discharge output. Open-drain N-channel output used to discharge the external timing capacitor when the internal flip-flop is reset. |+| 8 | VDD | power_in | Positive supply voltage input. Operating range 2V to 18V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HGSEMI |+| Package | SOP-8 |+| Category | RTC |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `ICM7555MM`++## CAD (KiCad official)++- Symbol: `ICM7555M`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [HGSEMI datasheet](docs/icm7555m-datasheet.pdf) (11 pp, sha256 `e95f11bad730cc7b`, 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/icm7555m-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "icm7555m",+  "version": "0.1.0",+  "type": "component",+  "description": "HGSEMI Timers / Clock Oscillators, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "rtc",+    "icm7555m"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "icm7555m.kicad_sym",+    "icm7555m.kicad_mod",+    "icm7555m.glb",+    "icm7555m.step",+    "icm7555m.lbr",+    "docs/hero.png",+    "docs/icm7555m-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file