component
ISD3900FYI
Public Made by Adomby adom
Nuvoton Tech Audio Interface ICs, LQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058
{
"schema_version": 1,
"type": "component",
"slug": "isd3900fyi",
"title": "ISD3900FYI",
"brief": "Nuvoton Tech Audio Interface ICs, LQFP-48(7x7). 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",
"communication interface chip-uart-485-232",
"isd3900fyi",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ISD3900FYI",
"manufacturer": "Nuvoton Tech",
"package": "LQFP-48(7x7)",
"pin_count": 48,
"category": "Communication Interface Chip/UART/485/232",
"subcategory": "Audio Interface ICs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/92220ccb120f850c6751d5067a06100e.pdf",
"parts": {
"symbol": "isd3900fyi.kicad_sym",
"footprint": "isd3900fyi.kicad_mod",
"model_3d": "isd3900fyi-hero.glb",
"model_3d_plain": "isd3900fyi-etched.glb",
"model_3d_step": "isd3900fyi-etched.step",
"model_3d_step_plain": "isd3900fyi.step",
"lbr": "isd3900fyi.lbr"
},
"distributor_links": {
"lcsc": "C2613393"
},
"distributor_check": {
"checked_at": "2026-10-28T23:49:44Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "deferred",
"error": "shared DigiKey quota guard: 988 calls left today"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "NC",
"type": "unconnected",
"description": "This pin should be left unconnected."
},
{
"number": "2",
"name": "CSB",
"type": "output",
"description": "Chip Select Bar of the external serial flash interface."
},
{
"number": "3",
"name": "DI",
"type": "input",
"description": "Serial data input to the external serial flash interface, connected to the flash memory data output (DO)."
},
{
"number": "4",
"name": "I2S_SDI/GPIO7",
"type": "input",
"description": "Serial Data Input of the I2S interface; should be grounded if I2S is not used, or it can be configured as GPIO7."
},
{
"number": "5",
"name": "I2S_SCK/GPIO6",
"type": "bidirectional",
"description": "I2S clock input in slave mode or clock output in master mode; should be grounded if I2S is not used, or it can be configured as an external clock buffer or as GPIO6."
},
{
"number": "6",
"name": "I2S_WS/GPIO5",
"type": "bidirectional",
"description": "I2S Word Select input in slave mode or output in master mode; should be grounded if I2S is not used, or it can be configured as GPIO5."
},
{
"number": "7",
"name": "I2S_SDO/GPIO4",
"type": "output",
"description": "Serial Data Output of the I2S interface; should be left unconnected if I2S is not used, or it can be configured as GPIO4."
},
{
"number": "8",
"name": "NC",
"type": "unconnected",
"description": "This pin should be left unconnected."
},
{
"number": "9",
"name": "NC",
"type": "unconnected",
"description": "This pin should be left unconnected."
},
{
"number": "10",
"name": "VSSD",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "11",
"name": "VCCD",
"type": "power_in",
"description": "Digital power supply (VDD 2.7V to 3.6V per operating conditions)."
},
{
"number": "12",
"name": "VREG",
"type": "power_out",
"description": "A 1.8V regulator output supplying the internal logic; a 0.1uF capacitor should be connected to this pin for supply decoupling and stability."
},
{
"number": "13",
"name": "MISO",
"type": "output",
"description": "Master-In-Slave-Out serial output from the ISD3900 to the host; tri-state when SSB=1."
},
{
"number": "14",
"name": "SCLK",
"type": "input",
"description": "Serial clock input to the ISD3900 from the host."
},
{
"number": "15",
"name": "SSB",
"type": "input",
"description": "Slave select input from the host; when low the device is selected and responds to SPI commands."
},
{
"number": "16",
"name": "MOSI",
"type": "input",
"description": "Master-Out-Slave-In serial input to the ISD3900 from the host."
},
{
"number": "17",
"name": "VCCD_PWM",
"type": "power_in",
"description": "Digital power for the PWM driver."
},
{
"number": "18",
"name": "SPK+",
"type": "output",
"description": "PWM driver positive output that, with SPK-, drives an 8 ohm speaker or buzzer differentially; tri-state during power down; can alternatively be configured as BTL or independently switched to AUDOUT or AUXOUT."
},
{
"number": "19",
"name": "VSSD_PWM",
"type": "power_in",
"description": "Digital ground for the PWM driver."
},
{
"number": "20",
"name": "SPK-",
"type": "output",
"description": "PWM driver negative output that, with SPK+, drives an 8 ohm speaker or buzzer differentially; tri-state during power down; can alternatively be configured as BTL or independently switched to AUDOUT or AUXOUT."
},
{
"number": "21",
"name": "VCCD_PWM",
"type": "power_in",
"description": "Digital power for the PWM driver."
},
{
"number": "22",
"name": "NC",
"type": "unconnected",
"description": "This pin should be left unconnected."
},
{
"number": "23",
"name": "NC",
"type": "unconnected",
"description": "This pin should be left unconnected."
},
{
"number": "24",
"name": "NC",
"type": "unconnected",
"description": "This pin should be left unconnected."
},
{
"number": "25",
"name": "INTB",
"type": "output",
"description": "Active-low interrupt request pin; open-drain output."
},
{
"number": "26",
"name": "RDY/BSYB",
"type": "output",
"description": "Reports the status of SPI data transfer; high indicates the ISD3900 is ready to accept new SPI commands or data."
},
{
"number": "27",
"name": "RESET",
"type": "input",
"description": "Applying power to this pin resets the chip; a high pulse of 50ms or more will reset the chip."
},
{
"number": "28",
"name": "DO",
"type": "output",
"description": "Serial data output of the external serial flash interface, connected to the flash data input (DI)."
},
{
"number": "29",
"name": "CLK",
"type": "output",
"description": "Serial data clock of the external serial flash interface."
},
{
"number": "30",
"name": "GPIO3",
"type": "bidirectional",
"description": "General-purpose I/O pin."
},
{
"number": "31",
"name": "GPIO2",
"type": "bidirectional",
"description": "General-purpose I/O pin."
},
{
"number": "32",
"name": "GPIO1",
"type": "bidirectional",
"description": "General-purpose I/O pin."
},
{
"number": "33",
"name": "NC",
"type": "unconnected",
"description": "This pin should be left unconnected."
},
{
"number": "34",
"name": "NC",
"type": "unconnected",
"description": "This pin should be left unconnected."
},
{
"number": "35",
"name": "XTALOUT",
"type": "output",
"description": "Crystal interface output pin."
},
{
"number": "36",
"name": "XTALIN",
"type": "input",
"description": "Depending on the CLK_CFG register, connects to a crystal/resonator with XTALOUT, to a GND-referenced resistor as oscillator reference current (XTALOUT left unconnected), or to an external clock input (XTALOUT left unconnected)."
},
{
"number": "37",
"name": "NC",
"type": "unconnected",
"description": "This pin should be left unconnected."
},
{
"number": "38",
"name": "GPIO0",
"type": "bidirectional",
"description": "General-purpose I/O pin."
},
{
"number": "39",
"name": "NC",
"type": "unconnected",
"description": "This pin should be left unconnected."
},
{
"number": "40",
"name": "NC",
"type": "unconnected",
"description": "This pin should be left unconnected."
},
{
"number": "41",
"name": "AUDOUT",
"type": "output",
"description": "Audio output configurable by SPI command as a voltage or current output; leave unconnected if not used."
},
{
"number": "42",
"name": "AUXOUT",
"type": "output",
"description": "Aux output, an analog voltage output; leave unconnected if not used."
},
{
"number": "43",
"name": "VCCA",
"type": "power_in",
"description": "Analog power supply pin."
},
{
"number": "44",
"name": "VSSA",
"type": "power_in",
"description": "Analog ground pin."
},
{
"number": "45",
"name": "ANAOUT/MIC-",
"type": "output",
"description": "Variable gain analog output with gain set by feedback resistance to ANAIN, or configurable as MIC- with MIC+ for a differential microphone input; leave unconnected if ANAIN/ANAOUT is not used."
},
{
"number": "46",
"name": "ANAIN/MIC+",
"type": "input",
"description": "Variable gain analog input, or configurable as MIC+ with MIC- for a differential microphone input; leave unconnected if ANAIN/ANAOUT is not used."
},
{
"number": "47",
"name": "AUXIN",
"type": "input",
"description": "Auxiliary input with gain set by SPI command; leave unconnected if not used."
},
{
"number": "48",
"name": "NC",
"type": "unconnected",
"description": "This pin should be left unconnected."
}
],
"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: Package drawing for the 48-lead LQFP (7x7x1.4mm) is an image on page 19 with no text; the 7x7 mm bod; Pin-number-to-name mapping was taken from the pin description table (pages 8-10). The pin configurat; Pin 12 VREG is printed as type O (1.8V regulator output); mapped to KiCad power_out. Pins 5 and 6 ar"
],
"pages_sent": 22,
"cost_usd": 0.0945,
"at": "2026-10-28T23:49:32"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/92220ccb120f850c6751d5067a06100e.pdf",
"pages": 22,
"sha256": "55ea4d404bcec4e0",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 48,
"described": 48,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "isd3900fyi.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
"checked": "2026-10-28",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "isd3900fyi-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "d64a4417633b97f0aeea6e1dcc85a08ac9d08e578c6a142e31693c266c48432d",
"checked": "2026-10-28",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Nuvoton Tech",
"Package": "LQFP-48(7x7)",
"Category": "Communication Interface Chip/UART/485/232",
"Pins": "48"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "55ea4d404bcec4e035d3f9a7041c48ebb450668713ad38451f3f5639ed4ee9a5",
"rows": [
{
"name": "Supply Voltage",
"symbol": "VDD",
"kind": "recommended_operating",
"unit": "V",
"min": 2.7,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Operating temperature range (Case temperature)",
"symbol": "",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Input voltage (VDD)",
"symbol": "",
"kind": "recommended_operating",
"unit": "V",
"min": 0,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Power supply voltage to ground potential",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 5,
"conditions": "",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Supply Voltage",
"symbol": "VDD",
"kind": "electrical",
"unit": "V",
"min": 2.7,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 11,
"source": "datasheet"
},
{
"name": "INTB Output Low Voltage",
"symbol": "VOH1",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.4,
"conditions": "",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Record Current",
"symbol": "IDD_Record",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 40,
"conditions": "VDD= 3.6V, No load, Sampling freq = 16 kHz",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Playback Current",
"symbol": "IDD_Playback",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 30,
"conditions": "",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Standby Current",
"symbol": "ISB",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 1,
"max": 10,
"conditions": "VDD= 3.6V",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Internal oscillator frequency deviation, internal reference (nominal 2.048 MHz)",
"symbol": "FINT",
"kind": "tolerance",
"unit": "%",
"min": -10,
"typ": null,
"max": 10,
"conditions": "Vdd = 3V. At room temperature",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Internal oscillator frequency deviation, external 78.7kohm resistor (nominal 2.048 MHz)",
"symbol": "FExt",
"kind": "tolerance",
"unit": "%",
"min": -5,
"typ": null,
"max": 5,
"conditions": "With 1% precision resistor, 78.7kohm. Vdd = 3V. At room temperature",
"source_page": 13,
"source": "datasheet"
},
{
"name": "ANAIN Input Voltage",
"symbol": "VANAIN",
"kind": "electrical",
"unit": "mV",
"min": 10,
"typ": null,
"max": 1000,
"conditions": "Peak-to-Peak; [2] Depends on Gain Setting",
"source_page": 13,
"source": "datasheet"
},
{
"name": "ANAIN Feed Back Resistance",
"symbol": "RANA(FB)",
"kind": "electrical",
"unit": "KΩ",
"min": 40,
"typ": null,
"max": 100,
"conditions": "Conditions VDD=3V, TA=25°C unless otherwise stated (table note [1])",
"source_page": 13,
"source": "datasheet"
},
{
"name": "MICIN Input Voltage",
"symbol": "VMICIN",
"kind": "electrical",
"unit": "mV",
"min": 5,
"typ": null,
"max": 500,
"conditions": "Peak-to-Peak; [2] Depends on Gain Setting",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Gain from AUXIN to AUXOUT/ANAOUT",
"symbol": "AAUXIN GAIN",
"kind": "electrical",
"unit": "dB",
"min": 0,
"typ": null,
"max": 9,
"conditions": "4 Gain Steps of 3db each",
"source_page": 13,
"source": "datasheet"
},
{
"name": "AUXIN Gain Accuracy",
"symbol": "AAUXIN (GA)",
"kind": "tolerance",
"unit": "dB",
"min": -0.5,
"typ": null,
"max": 0.5,
"conditions": "",
"source_page": 13,
"source": "datasheet"
},
{
"name": "AUXIN Input Resistance",
"symbol": "RAUXIN",
"kind": "electrical",
"unit": "KΩ",
"min": 20,
"typ": null,
"max": 40,
"conditions": "Depending on AUXIN Gain Setting",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Minimum Load Impedance (AUXOUT)",
"symbol": "RL(AUXOUT)",
"kind": "electrical",
"unit": "KΩ",
"min": 5,
"typ": null,
"max": null,
"conditions": "",
"source_page": 14,
"source": "datasheet"
},
{
"name": "Maximum Load Capacitance (AUXOUT)",
"symbol": "CL(AUXOUT)",
"kind": "electrical",
"unit": "nF",
"min": null,
"typ": null,
"max": 0.1,
"conditions": "",
"source_page": 14,
"source": "datasheet"
},
{
"name": "Minimum Load Impedance (AUDOUT)",
"symbol": "RL(AUDOUT)",
"kind": "electrical",
"unit": "KΩ",
"min": 5,
"typ": null,
"max": null,
"conditions": "Configured as AUDOUT (Voltage Output)",
"source_page": 14,
"source": "datasheet"
},
{
"name": "Maximum Load Capacitance (AUDOUT)",
"symbol": "CL(AUDOUT)",
"kind": "electrical",
"unit": "nF",
"min": null,
"typ": null,
"max": 0.1,
"conditions": "Configured as AUDOUT (Voltage Output)",
"source_page": 14,
"source": "datasheet"
},
{
"name": "Output Current (AUDOUT)",
"symbol": "IAUDOUT",
"kind": "electrical",
"unit": "mA",
"min": 0,
"typ": 3,
"max": 6,
"conditions": "[2] 1 Vpp 1KHz signal at AUXIN/ANAIN, 0db Gain; [6] Configured as AUDOUT(Current Output)",
"source_page": 14,
"source": "datasheet"
},
{
"name": "THD, AUXIN to SPK+/SPK-",
"symbol": "THD",
"kind": "electrical",
"unit": "%",
"min": null,
"typ": null,
"max": 1,
"conditions": "Load 8Ω [2]",
"source_page": 15,
"source": "datasheet"
},
{
"name": "Minimum Load Impedance (SPK)",
"symbol": "RL(SPK)",
"kind": "electrical",
"unit": "Ω",
"min": 4,
"typ": null,
"max": null,
"conditions": "",
"source_page": 15,
"source": "datasheet"
},
{
"name": "SCLK Cycle Time",
"symbol": "TSCK",
"kind": "timing",
"unit": "ns",
"min": 60,
"typ": null,
"max": null,
"conditions": "",
"source_page": 15,
"source": "datasheet"
},
{
"name": "SCLK High Pulse Width",
"symbol": "TSCKH",
"kind": "timing",
"unit": "ns",
"min": 25,
"typ": null,
"max": null,
"conditions": "",
"source_page": 15,
"source": "datasheet"
},
{
"name": "SCLK Low Pulse Width",
"symbol": "TSCKL",
"kind": "timing",
"unit": "ns",
"min": 25,
"typ": null,
"max": null,
"conditions": "",
"source_page": 15,
"source": "datasheet"
},
{
"name": "Rise Time for All Digital Signals",
"symbol": "TRISE",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 15,
"source": "datasheet"
},
{
"name": "Fall Time for All Digital Signals",
"symbol": "TFALL",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 16,
"source": "datasheet"
},
{
"name": "SSB Falling Edge to 1st SCLK Falling Edge Setup Time",
"symbol": "TSSBS",
"kind": "timing",
"unit": "ns",
"min": 30,
"typ": null,
"max": null,
"conditions": "",
"source_page": 16,
"source": "datasheet"
},
{
"name": "Last SCLK Rising Edge to SSB Rising Edge Hold Time",
"symbol": "TSSBH",
"kind": "timing",
"unit": "ns (min), us (max)",
"min": 30,
"typ": null,
"max": 50,
"conditions": "",
"source_page": 16,
"source": "datasheet"
},
{
"name": "SSB High Time between SSB Lows",
"symbol": "TSSBHI",
"kind": "timing",
"unit": "ns",
"min": 20,
"typ": null,
"max": null,
"conditions": "",
"source_page": 16,
"source": "datasheet"
},
{
"name": "MOSI to SCLK Rising Edge Setup Time",
"symbol": "TMOS",
"kind": "timing",
"unit": "ns",
"min": 15,
"typ": null,
"max": null,
"conditions": "",
"source_page": 16,
"source": "datasheet"
},
{
"name": "SCLK Rising Edge to MOSI Hold Time",
"symbol": "TMOH",
"kind": "timing",
"unit": "ns",
"min": 15,
"typ": null,
"max": null,
"conditions": "",
"source_page": 16,
"source": "datasheet"
},
{
"name": "Delay Time from SSB Falling Edge to MISO Active",
"symbol": "TZMID",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 12,
"conditions": "",
"source_page": 16,
"source": "datasheet"
},
{
"name": "Delay Time from SSB Rising Edge to MISO Tri-state",
"symbol": "TMIZD",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 12,
"conditions": "",
"source_page": 16,
"source": "datasheet"
},
{
"name": "Delay Time from SCLK Falling Edge to MISO",
"symbol": "TMID",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 12,
"conditions": "",
"source_page": 16,
"source": "datasheet"
},
{
"name": "Delay Time from SCLK Rising Edge to RDY/BSYB Falling Edge",
"symbol": "TCRBD",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 12,
"conditions": "",
"source_page": 16,
"source": "datasheet"
},
{
"name": "Delay Time from RDY/BSYB Rising Edge to SCLK Falling Edge",
"symbol": "TRBCD",
"kind": "timing",
"unit": "ns",
"min": 0,
"typ": null,
"max": null,
"conditions": "",
"source_page": 16,
"source": "datasheet"
},
{
"name": "IS_SCK Cycle Time",
"symbol": "TSCK",
"kind": "timing",
"unit": "ns",
"min": 60,
"typ": null,
"max": null,
"conditions": "",
"source_page": 17,
"source": "datasheet"
},
{
"name": "IS_SCK High Pulse Width",
"symbol": "TSCKH",
"kind": "timing",
"unit": "ns",
"min": 25,
"typ": null,
"max": null,
"conditions": "",
"source_page": 17,
"source": "datasheet"
},
{
"name": "IS_SCK Low Pulse Width",
"symbol": "TSCKL",
"kind": "timing",
"unit": "ns",
"min": 25,
"typ": null,
"max": null,
"conditions": "",
"source_page": 17,
"source": "datasheet"
},
{
"name": "Rise Time for All Digital Signals",
"symbol": "TRISE",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 17,
"source": "datasheet"
},
{
"name": "Fall Time for All Digital Signals",
"symbol": "TFALL",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 17,
"source": "datasheet"
},
{
"name": "WS to IS_SCK Rising Edge Setup Time",
"symbol": "TWSS",
"kind": "timing",
"unit": "ns",
"min": 20,
"typ": null,
"max": null,
"conditions": "",
"source_page": 17,
"source": "datasheet"
},
{
"name": "IS_SCK Rising Edge to IS_WS Hold Time",
"symbol": "TWSH",
"kind": "timing",
"unit": "ns",
"min": 20,
"typ": null,
"max": null,
"conditions": "",
"source_page": 17,
"source": "datasheet"
},
{
"name": "IS_SDI to IS_SCK Rising Edge Setup Time",
"symbol": "TSDIS",
"kind": "timing",
"unit": "ns",
"min": 15,
"typ": null,
"max": null,
"conditions": "",
"source_page": 17,
"source": "datasheet"
},
{
"name": "IS_SCK Rising Edge to IS_SDI Hold Time",
"symbol": "TSDIH",
"kind": "timing",
"unit": "ns",
"min": 15,
"typ": null,
"max": null,
"conditions": "",
"source_page": 17,
"source": "datasheet"
},
{
"name": "Delay Time from IS_SCLK Falling Edge to IS_SDO",
"symbol": "TSDOD",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 12,
"conditions": "",
"source_page": 17,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"isd3900fyi"
],
"discovery_pitch": "ISD3900FYI (Nuvoton Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"isd3900fyi.kicad_sym",
"isd3900fyi.kicad_mod",
"isd3900fyi.glb",
"isd3900fyi.step",
"isd3900fyi.lbr",
"docs/hero.png",
"docs/isd3900fyi-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"isd3900fyi-hero.glb",
"isd3900fyi-hero.overlay.json",
"isd3900fyi-etched.glb"
],
"visibility": {
"public": true
}
}