TLC555

@@ -0,0 +1,52 @@+# TLC555++**Texas Instruments** · CMOS timer (555) · SOIC-8++The CMOS version of the 555 timer, pin-for-pin compatible with the bipolar NE555 but far more efficient. It draws only about 1 mA (versus ~10 mA), runs from 2 to 15 V, reaches 2 MHz, and does not glitch the supply when its output switches, so it works well in battery and mixed-signal designs where the classic 555 is too noisy or thirsty. It builds the same astable oscillators and monostable one-shots: an RC network on TRIG/THRES sets the timing, RESET forces the output low, and CONT trims the threshold. Drop it in wherever an NE555 is called for and needs less power.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | GND | power_in | Ground (0 V) reference for the device. |+| 2 | TRIG | input | Trigger input. Start of timing input: pulling TRIG below 1/2 CONT (~1/3 VDD) sets the output high and opens the discharge switch. |+| 3 | OUT | output | High-current timer output. Rail-to-rail CMOS output; sinks up to 100 mA and sources up to 10 mA typical. |+| 4 | RESET | input | Active-low reset input. Overrides all other inputs; when low, forces the output low and the discharge switch on to start a new timing cycle. Tie high (to VDD) when unused. |+| 5 | CONT | input | Control voltage. Sets the comparator thresholds (open-circuit value is 2/3 VDD); allows an external voltage to modulate timing or a bypass capacitor (typically 10 nF) to ground for noise immunity. |+| 6 | THRES | input | Threshold input. End of timing input: when THRES exceeds CONT (~2/3 VDD) the output goes low and the discharge switch turns on. |+| 7 | DISCH | output | Discharge. Open-drain (open-collector) output to discharge the external timing capacitor to GND during the low half of the timing cycle. |+| 8 | VDD | power_in | Positive supply voltage. Single-supply operation from 2 V to 15 V (TLC555C); IDD typically 250 uA at VDD = 5 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Type | CMOS timer (astable / monostable) |+| Supply voltage | 2-15 V |+| Supply current | ~1 mA (low power) |+| Max frequency | 2.1 MHz |+| Output | CMOS push-pull |+| Compatibility | pin-identical to NE555 |+| Timing | external RC on TRIG/THRES |+| Package | SOIC-8 |++## Ordering variants++- `TLC555CD (SOIC-8, tube)`+- `TLC555CDR (SOIC-8, tape & reel)`++## CAD (KiCad official)++- Symbol: `Timer:TLC555xD`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/tlc555.pdf) (47 pp, sha256 `1bb22975b6bc1294`, retrieved 2026-08-17, tier: manufacturer)+- **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/tlc555-datasheet.pdf)

@@ -0,0 +1,36 @@+{+  "slug": "tlc555",+  "version": "0.1.0",+  "type": "component",+  "description": "TI CMOS 555 timer, SOIC-8. Low power, up to 2 MHz, 2-15 V, same pinout as NE555. Datasheet-verified.",+  "tags": [+    "component",+    "timer",+    "555",+    "cmos",+    "oscillator",+    "soic-8",+    "texas-instruments"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "tlc555.kicad_sym",+    "tlc555.kicad_mod",+    "tlc555.glb",+    "docs/hero.png",+    "docs/tlc555-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file