component
CY2305CSXI-1HT
Public Made by Adomby adom
Cypress Semicon Clock Generators / Frequency Synthesizers / PLL, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
Ray
Set visibility: public
47bb8d6
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640
{
"schema_version": 1,
"type": "component",
"slug": "cy2305csxi-1ht",
"title": "CY2305CSXI-1HT",
"brief": "Cypress Semicon Clock Generators / Frequency Synthesizers / PLL, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"rtc-clock chip",
"cy2305csxi-1ht",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "CY2305CSXI-1HT",
"manufacturer": "Cypress Semicon",
"package": "SOIC-8",
"pin_count": 8,
"category": "RTC/Clock Chip",
"subcategory": "Clock Generators / Frequency Synthesizers / PLL",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/3243efd60b09b3f0a2a632f575c60d4b.pdf",
"parts": {
"symbol": "cy2305csxi-1ht.kicad_sym",
"footprint": "cy2305csxi-1ht.kicad_mod",
"model_3d": "cy2305csxi-1ht-hero.glb",
"model_3d_plain": "cy2305csxi-1ht-etched.glb",
"model_3d_step": "cy2305csxi-1ht-etched.step",
"model_3d_step_plain": "cy2305csxi-1ht.step",
"lbr": "cy2305csxi-1ht.lbr"
},
"distributor_links": {
"lcsc": "C2952648",
"digikey": "448-CY2305CSXI-1HTTR-ND",
"mouser": "727-CY2305CSXI-1HT"
},
"distributor_check": {
"checked_at": "2026-10-31T01:09:40Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "448-CY2305CSXI-1HTTR-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "727-CY2305CSXI-1HT",
"status": "found",
"lifecycle": "Not Recommended for New Designs"
}
},
"pins": [
{
"number": "1",
"name": "REF",
"type": "input",
"description": "Input reference frequency; the PLL locks to this clock input, which has a VDD/2 threshold and a weak pull-down."
},
{
"number": "2",
"name": "CLK2",
"type": "output",
"description": "Buffered clock output with a weak pull-down."
},
{
"number": "3",
"name": "CLK1",
"type": "output",
"description": "Buffered clock output with a weak pull-down."
},
{
"number": "4",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "5",
"name": "CLK3",
"type": "output",
"description": "Buffered clock output with a weak pull-down."
},
{
"number": "6",
"name": "VDD",
"type": "power_in",
"description": "3.3 V supply; the datasheet operating range is 3.0 V to 3.6 V."
},
{
"number": "7",
"name": "CLK4",
"type": "output",
"description": "Buffered clock output with a weak pull-down."
},
{
"number": "8",
"name": "CLKOUT",
"type": "output",
"description": "Buffered clock output that is also the internal PLL feedback pin; its capacitive load must equal that of the other outputs for zero input-output delay."
}
],
"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: The MPN CY2305CSXI-1HT is listed on page 15 as an 8-pin SOIC (150 Mil) Industrial Tape and Reel part; Pin descriptions were taken from the 8-pin SOIC table on page 5. The page 4 pinout figure text is sc; The datasheet gives VDD and temperature limits for the Industrial grade on page 7 (VDD 3.0 V to 3.6 "
],
"pages_sent": 22,
"cost_usd": 0.0673,
"at": "2026-10-31T01:08:53"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/3243efd60b09b3f0a2a632f575c60d4b.pdf",
"pages": 22,
"sha256": "1e1eda0ba9771e9b",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 8,
"described": 8,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "cy2305csxi-1ht.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6,
4.9,
1.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "cy2305csxi-1ht-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6,
4.9,
1.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "a4b74caf9a3f6d67a6cc903f85f2d3246a1cde952b7655778469410a6629ad78",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Cypress Semicon",
"Package": "SOIC-8",
"Category": "RTC/Clock Chip",
"Pins": "8"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "1e1eda0ba9771e9b314096ba612a47ff1cf6b220dc4f3aae8f5f69b6b2b902a2",
"rows": [
{
"name": "Supply voltage",
"symbol": "VDD",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": null,
"max": 3.6,
"conditions": "Industrial / Automotive-A operating conditions table",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Operating temperature (ambient temperature)",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "Industrial / Automotive-A operating conditions table",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Load capacitance, below 100 MHz",
"symbol": "CL",
"kind": "recommended_operating",
"unit": "pF",
"min": null,
"typ": null,
"max": 30,
"conditions": "below 100 MHz",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Load capacitance, from 100 MHz to 133 MHz",
"symbol": "CL",
"kind": "recommended_operating",
"unit": "pF",
"min": null,
"typ": null,
"max": 10,
"conditions": "from 100 MHz to 133 MHz",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input capacitance",
"symbol": "CIN",
"kind": "recommended_operating",
"unit": "pF",
"min": null,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Power-up time for all VDDs to reach minimum specified voltage",
"symbol": "tPU",
"kind": "recommended_operating",
"unit": "ms",
"min": 0.05,
"typ": null,
"max": 50,
"conditions": "power ramps are monotonic",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input LOW voltage",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.8,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Input HIGH voltage",
"symbol": "VIH",
"kind": "electrical",
"unit": "V",
"min": 2,
"typ": null,
"max": null,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Input LOW current",
"symbol": "IIL",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 50,
"conditions": "VIN = 0 V",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Input HIGH current",
"symbol": "IIH",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 100,
"conditions": "VIN = VDD",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Output LOW voltage",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.4,
"conditions": "IOL = 12 mA (–1H)",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Output HIGH voltage",
"symbol": "VOH",
"kind": "electrical",
"unit": "V",
"min": 2.4,
"typ": null,
"max": null,
"conditions": "IOH = –12 mA (–1H)",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Power-down supply current",
"symbol": "IDD (PD mode)",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 25,
"conditions": "REF = 0 MHz",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Supply current",
"symbol": "IDD",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 35,
"conditions": "Unloaded outputs at 66.67 MHz, SEL inputs at VDD",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Output frequency",
"symbol": "t1",
"kind": "timing",
"unit": "MHz",
"min": 10,
"typ": null,
"max": 100,
"conditions": "30 pF load",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Output frequency",
"symbol": "t1",
"kind": "timing",
"unit": "MHz",
"min": 10,
"typ": null,
"max": 133.33,
"conditions": "10 pF load",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Output duty cycle",
"symbol": "tDC",
"kind": "timing",
"unit": "%",
"min": 40,
"typ": 50,
"max": 60,
"conditions": "Measured at 1.4 V, Fout > 50 MHz",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Output duty cycle",
"symbol": "tDC",
"kind": "timing",
"unit": "%",
"min": 45,
"typ": 50,
"max": 55,
"conditions": "Measured at 1.4 V, Fout < 50 MHz",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Rise time",
"symbol": "t3",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 1.5,
"conditions": "Measured between 0.8 V and 2.0 V",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Fall time",
"symbol": "t4",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 1.5,
"conditions": "Measured between 0.8 V and 2.0 V",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Output-to-output skew",
"symbol": "t5",
"kind": "timing",
"unit": "ps",
"min": null,
"typ": null,
"max": 200,
"conditions": "All outputs equally loaded",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Delay, REF rising edge to CLKOUT rising edge",
"symbol": "t6A",
"kind": "timing",
"unit": "ps",
"min": -350,
"typ": 0,
"max": 350,
"conditions": "Measured at VDD/2",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Device-to-device skew",
"symbol": "t7",
"kind": "timing",
"unit": "ps",
"min": null,
"typ": 0,
"max": 700,
"conditions": "Measured at VDD/2 on the CLKOUT pins of devices",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Output slew rate",
"symbol": "t8",
"kind": "timing",
"unit": "V/ns",
"min": 1,
"typ": null,
"max": null,
"conditions": "Measured between 0.8 V and 2.0 V using Test circuit #2",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Cycle-to-cycle jitter, peak",
"symbol": "tJ",
"kind": "timing",
"unit": "ps",
"min": null,
"typ": null,
"max": 175,
"conditions": "Measured at 66.67 MHz, loaded outputs",
"source_page": 13,
"source": "datasheet"
},
{
"name": "PLL lock time",
"symbol": "tLOCK",
"kind": "timing",
"unit": "ms",
"min": null,
"typ": null,
"max": 1,
"conditions": "Stable power supply, valid clock presented on REF pin",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Supply voltage to ground potential",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": 4.6,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "DC input voltage (Except REF)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "DC input voltage REF",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Storage temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Junction temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Static discharge voltage (per MIL-STD-883, Method 3015)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": 2000,
"typ": null,
"max": null,
"conditions": "per MIL-STD-883, Method 3015",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Thermal resistance, junction to ambient (8-pin SOIC)",
"symbol": "θJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 145,
"max": null,
"conditions": "per EIA/JESD51",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Thermal resistance, junction to case (8-pin SOIC)",
"symbol": "θJC",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 62,
"max": null,
"conditions": "",
"source_page": 9,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"cy2305csxi-1ht"
],
"discovery_pitch": "CY2305CSXI-1HT (Cypress Semicon) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"cy2305csxi-1ht.kicad_sym",
"cy2305csxi-1ht.kicad_mod",
"cy2305csxi-1ht.glb",
"cy2305csxi-1ht.step",
"cy2305csxi-1ht.lbr",
"docs/hero.png",
"docs/cy2305csxi-1ht-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"cy2305csxi-1ht-hero.glb",
"cy2305csxi-1ht-hero.overlay.json",
"cy2305csxi-1ht-etched.glb"
],
"visibility": {
"public": true
}
}