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CD4521BM96
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Texas Instruments Counters, Dividers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+52@@ -0,0 +1,52 @@+# CD4521BM96++**Texas Instruments** · Counters, Dividers · SOIC-16++CD4521BM96 from Texas Instruments, in a SOIC-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | Q24 | output | Counter output Q24 with count capacity 2^24 = 16,777,216. |+| 2 | RESET | input | A HIGH on RESET sets the counter to the all-0's state and disables the oscillator (input range -0.5V to VDD+0.5V). |+| 3 | VSS' | power_in | VSS' pin brought out from the crystal oscillator to allow use of external resistors for low-power operation. |+| 4 | OUT 2 | output | Oscillator output 2 used with IN1/IN2 to build RC or crystal oscillator circuits. |+| 5 | VDD' | power_in | VDD' pin brought out from the crystal oscillator to allow use of external resistors for low-power operation. |+| 6 | IN 2 | input | Oscillator input 2; the count is advanced on the negative transition of IN1 (and IN2). |+| 7 | OUT 1 | output | Oscillator output 1 used with IN1 for RC or crystal oscillator circuits. |+| 8 | VSS | power_in | Ground (VSS) supply terminal; supply voltages are referenced to it. |+| 9 | IN 1 | input | Oscillator/clock input 1; count advances on its negative transition, and it should be tied HIGH or LOW when not in use. |+| 10 | Q18 | output | Counter output Q18 with count capacity 2^18 = 262,144. |+| 11 | Q19 | output | Counter output Q19 with count capacity 2^19 = 524,288. |+| 12 | Q20 | output | Counter output Q20 with count capacity 2^20 = 1,048,576. |+| 13 | Q21 | output | Counter output Q21 with count capacity 2^21 = 2,097,152. |+| 14 | Q22 | output | Counter output Q22 with count capacity 2^22 = 4,194,304. |+| 15 | Q23 | output | Counter output Q23 with count capacity 2^23 = 8,388,608. |+| 16 | VDD | power_in | Positive supply; recommended 3 V to 18 V, absolute maximum -0.5V to +20V referenced to VSS. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-16 |+| Category | Logic |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `CD4521BM96`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16 (KiCad packages3D, STEP)+- 3D model files: `cd4521bm96-etched.step` / `cd4521bm96-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd4521bm96.step` / `cd4521bm96.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/cd4521b) (21 pp, sha256 `0f0f6fb3629f4701`, retrieved 2026-10-01, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/cd4521bm96-datasheet.pdf)
page.jsonadded+206@@ -0,0 +1,206 @@+{+ "slug": "cd4521bm96",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Counters, Dividers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "cd4521bm96",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "cd4521bm96.kicad_sym",+ "cd4521bm96.kicad_mod",+ "cd4521bm96.glb",+ "cd4521bm96.step",+ "cd4521bm96.lbr",+ "docs/hero.png",+ "docs/cd4521bm96-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "CD4521BM96",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-16",+ "pin_count": 16,+ "category": "Logic",+ "subcategory": "Counters, Dividers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/cd4521b",+ "parts": {+ "symbol": "cd4521bm96.kicad_sym",+ "footprint": "cd4521bm96.kicad_mod",+ "model_3d": "cd4521bm96-etched.glb",+ "model_3d_plain": "cd4521bm96.glb",+ "model_3d_step": "cd4521bm96-etched.step",+ "model_3d_step_plain": "cd4521bm96.step",+ "lbr": "cd4521bm96.lbr"+ },+ "distributor_links": {+ "lcsc": "C544662",+ "digikey": "296-31533-2-ND",+ "mouser": "595-CD4521BM96"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T05:19:11Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-31533-2-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "595-CD4521BM96",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "Q24",+ "type": "output",+ "description": "Counter output Q24 with count capacity 2^24 = 16,777,216."+ },+ {+ "number": "2",+ "name": "RESET",+ "type": "input",+ "description": "A HIGH on RESET sets the counter to the all-0's state and disables the oscillator (input range -0.5V to VDD+0.5V)."+ },+ {+ "number": "3",+ "name": "VSS'",+ "type": "power_in",+ "description": "VSS' pin brought out from the crystal oscillator to allow use of external resistors for low-power operation."+ },+ {+ "number": "4",+ "name": "OUT 2",+ "type": "output",+ "description": "Oscillator output 2 used with IN1/IN2 to build RC or crystal oscillator circuits."+ },+ {+ "number": "5",+ "name": "VDD'",+ "type": "power_in",+ "description": "VDD' pin brought out from the crystal oscillator to allow use of external resistors for low-power operation."+ },+ {+ "number": "6",+ "name": "IN 2",+ "type": "input",+ "description": "Oscillator input 2; the count is advanced on the negative transition of IN1 (and IN2)."+ },+ {+ "number": "7",+ "name": "OUT 1",+ "type": "output",+ "description": "Oscillator output 1 used with IN1 for RC or crystal oscillator circuits."+ },+ {+ "number": "8",+ "name": "VSS",+ "type": "power_in",+ "description": "Ground (VSS) supply terminal; supply voltages are referenced to it."+ },+ {+ "number": "9",+ "name": "IN 1",+ "type": "input",+ "description": "Oscillator/clock input 1; count advances on its negative transition, and it should be tied HIGH or LOW when not in use."+ },+ {+ "number": "10",+ "name": "Q18",+ "type": "output",+ "description": "Counter output Q18 with count capacity 2^18 = 262,144."+ },+ {+ "number": "11",+ "name": "Q19",+ "type": "output",+ "description": "Counter output Q19 with count capacity 2^19 = 524,288."+ },+ {+ "number": "12",+ "name": "Q20",+ "type": "output",+ "description": "Counter output Q20 with count capacity 2^20 = 1,048,576."+ },+ {+ "number": "13",+ "name": "Q21",+ "type": "output",+ "description": "Counter output Q21 with count capacity 2^21 = 2,097,152."+ },+ {+ "number": "14",+ "name": "Q22",+ "type": "output",+ "description": "Counter output Q22 with count capacity 2^22 = 4,194,304."+ },+ {+ "number": "15",+ "name": "Q23",+ "type": "output",+ "description": "Counter output Q23 with count capacity 2^23 = 8,388,608."+ },+ {+ "number": "16",+ "name": "VDD",+ "type": "power_in",+ "description": "Positive supply; recommended 3 V to 18 V, absolute maximum -0.5V to +20V referenced to VSS."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-sonnet-5-5",+ "primary_mode": "vision",+ "consensus_model": "claude-opus-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: VSS' and VDD' are oscillator-section supply taps with no electrical type given; classified as passiv; OUT1/OUT2 function is only implied by the oscillator description; the text does not describe them ex; Only pages 1-3 were read. The SOIC-16 pinout comes from the single 16-pin terminal assignment on pag",+ "vision extraction: provenance cannot be text-verified; needs consensus"+ ],+ "pages_sent": 12,+ "cost_usd": 0.1862,+ "at": "2026-10-01T05:18:54"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/cd4521b",+ "pages": 21,+ "sha256": "0f0f6fb3629f4701",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 16,+ "described": 16,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}