component
CDCEL937PWR
Public Made by Adomby adom
Texas Instruments Clock Generators, PLLs, Frequency Synthesizers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"type": "component",
"slug": "cdcel937pwr",
"title": "CDCEL937PWR",
"brief": "Texas Instruments Clock Generators, PLLs, Frequency Synthesizers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
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"cdcel937pwr",
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],
"component": {
"mpn": "CDCEL937PWR",
"manufacturer": "Texas Instruments",
"package": "TSSOP-20",
"pin_count": 20,
"category": "Clock/Timing",
"subcategory": "Clock Generators, PLLs, Frequency Synthesizers",
"datasheet": "https://www.ti.com/lit/ds/symlink/cdcel937.pdf",
"parts": {
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"footprint": "cdcel937pwr.kicad_mod",
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"model_3d_step_plain": "cdcel937pwr.step",
"lbr": "cdcel937pwr.lbr"
},
"distributor_links": {
"lcsc": "C2662666",
"digikey": "296-51008-2-ND",
"mouser": "595-CDCEL937PWR"
},
"distributor_check": {
"checked_at": "2026-10-08T15:56:39Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-51008-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-CDCEL937PWR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "Xin/CLK",
"type": "input",
"description": "Crystal oscillator input or LVCMOS clock input, selectable through the SDA/SCL bus."
},
{
"number": "2",
"name": "S0",
"type": "input",
"description": "User-programmable LVCMOS control input S0 with internal 500k pullup; in default mode it switches all outputs ON or OFF."
},
{
"number": "3",
"name": "VDD",
"type": "power_in",
"description": "1.8V power supply for the device."
},
{
"number": "4",
"name": "VCtrl",
"type": "input",
"description": "VCXO control voltage input; leave open or pull up (approximately 500k) when not used."
},
{
"number": "5",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "6",
"name": "Vddout",
"type": "power_in",
"description": "Output supply for all outputs; 1.8V for CDCEL937 (this pin is one of three Vddout pins, 6, 10 and 13)."
},
{
"number": "7",
"name": "Y4",
"type": "output",
"description": "LVCMOS output Y4."
},
{
"number": "8",
"name": "Y5",
"type": "output",
"description": "LVCMOS output Y5."
},
{
"number": "9",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "10",
"name": "Vddout",
"type": "power_in",
"description": "Output supply for all outputs; 1.8V for CDCEL937 (one of three Vddout pins, 6, 10 and 13)."
},
{
"number": "11",
"name": "Y7",
"type": "output",
"description": "LVCMOS output Y7."
},
{
"number": "12",
"name": "Y6",
"type": "output",
"description": "LVCMOS output Y6."
},
{
"number": "13",
"name": "Vddout",
"type": "power_in",
"description": "Output supply for all outputs; 1.8V for CDCEL937 (one of three Vddout pins, 6, 10 and 13)."
},
{
"number": "14",
"name": "Y3",
"type": "output",
"description": "LVCMOS output Y3."
},
{
"number": "15",
"name": "Y2",
"type": "output",
"description": "LVCMOS output Y2."
},
{
"number": "16",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "17",
"name": "Y1",
"type": "output",
"description": "LVCMOS output Y1; its state (power down, 3-state, low or active) is user-definable in the Generic Configuration Register."
},
{
"number": "18",
"name": "SCL/S2",
"type": "bidirectional",
"description": "Serial clock input SCL in default configuration (LVCMOS, internal 500k pullup); can be reprogrammed as user control input S2."
},
{
"number": "19",
"name": "SDA/S1",
"type": "bidirectional",
"description": "Bidirectional serial data SDA in default configuration (LVCMOS, internal 500k pullup); can be reprogrammed as user control input S1."
},
{
"number": "20",
"name": "Xout",
"type": "output",
"description": "Crystal oscillator output; leave open or pull up (approximately 500k) when not used."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Pinout taken from the PW (TSSOP-20) pin table on page 3; the orderable addendum (page 31) lists CDCE; Pins 18 (SCL/S2) and 19 (SDA/S1) are dual-function; they are typed bidirectional here because the de; Pin descriptions for Y4, Y5, Y6, Y7, Y2, Y3 are limited to the datasheet's 'LVCMOS outputs' label; t"
],
"pages_sent": 11,
"cost_usd": 0.0713,
"at": "2026-10-08T15:56:20"
},
"datasheet": {
"url": "https://www.ti.com/lit/ds/symlink/cdcel937.pdf",
"pages": 39,
"sha256": "c538114a66321dcf",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 20,
"described": 20,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
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"file": "cdcel937pwr.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
6.5,
1.2
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "cdcel937pwr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
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"zmin_mm": 0,
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"footprint_binding": "identity",
"sha256": "ba80efebe727352844a9bfcd23241aca79f2315b07b710b5ce8837f38d135127",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "TSSOP-20",
"Category": "Clock/Timing",
"Pins": "20"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
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],
"discovery_triggers": [
"cdcel937pwr"
],
"discovery_pitch": "CDCEL937PWR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
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"files": [
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