component
SN74HC574D
Public Made by Adomby adom
lingxingic Flip Flops, SOP-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"slug": "sn74hc574d",
"title": "SN74HC574D",
"brief": "lingxingic Flip Flops, SOP-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
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"logic",
"sn74hc574d",
"factory-2.0.0",
"extractor-text"
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"component": {
"mpn": "SN74HC574D",
"manufacturer": "lingxingic",
"package": "SOP-20-300mil",
"pin_count": 20,
"category": "Logic",
"subcategory": "Flip Flops",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590923056514740224",
"parts": {
"symbol": "sn74hc574d.kicad_sym",
"footprint": "sn74hc574d.kicad_mod",
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"model_3d_plain": "sn74hc574d-etched.glb",
"model_3d_step": "sn74hc574d-etched.step",
"model_3d_step_plain": "sn74hc574d.step",
"lbr": "sn74hc574d.lbr"
},
"distributor_links": {
"lcsc": "C22374074"
},
"distributor_check": {
"checked_at": "2026-10-17T16:12:14Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "OE",
"type": "input",
"description": "Active-low 3-state output enable; when OE is high the Qn outputs go high-impedance, and changes on OE do not affect the flip-flop state."
},
{
"number": "2",
"name": "D0",
"type": "input",
"description": "Data input to flip-flop FF1, sampled on the rising edge of CP with the setup and hold times given in the timing tables."
},
{
"number": "3",
"name": "D1",
"type": "input",
"description": "Data input to flip-flop FF2, sampled on the rising edge of CP with the setup and hold times given in the timing tables."
},
{
"number": "4",
"name": "D2",
"type": "input",
"description": "Data input to flip-flop FF3, sampled on the rising edge of CP with the setup and hold times given in the timing tables."
},
{
"number": "5",
"name": "D3",
"type": "input",
"description": "Data input to flip-flop FF4, sampled on the rising edge of CP with the setup and hold times given in the timing tables."
},
{
"number": "6",
"name": "D4",
"type": "input",
"description": "Data input to flip-flop FF5, sampled on the rising edge of CP with the setup and hold times given in the timing tables."
},
{
"number": "7",
"name": "D5",
"type": "input",
"description": "Data input to flip-flop FF6, sampled on the rising edge of CP with the setup and hold times given in the timing tables."
},
{
"number": "8",
"name": "D6",
"type": "input",
"description": "Data input to flip-flop FF7, sampled on the rising edge of CP with the setup and hold times given in the timing tables."
},
{
"number": "9",
"name": "D7",
"type": "input",
"description": "Data input to flip-flop FF8, sampled on the rising edge of CP with the setup and hold times given in the timing tables."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground reference (0 V)."
},
{
"number": "11",
"name": "CP",
"type": "input",
"description": "Clock input; the flip-flops are triggered on the rising edge."
},
{
"number": "12",
"name": "Q7",
"type": "tri_state",
"description": "3-state flip-flop output Q7; high-impedance when OE is high."
},
{
"number": "13",
"name": "Q6",
"type": "tri_state",
"description": "3-state flip-flop output Q6; high-impedance when OE is high."
},
{
"number": "14",
"name": "Q5",
"type": "tri_state",
"description": "3-state flip-flop output Q5; high-impedance when OE is high."
},
{
"number": "15",
"name": "Q4",
"type": "tri_state",
"description": "3-state flip-flop output Q4; high-impedance when OE is high."
},
{
"number": "16",
"name": "Q3",
"type": "tri_state",
"description": "3-state flip-flop output Q3; high-impedance when OE is high."
},
{
"number": "17",
"name": "Q2",
"type": "tri_state",
"description": "3-state flip-flop output Q2; high-impedance when OE is high."
},
{
"number": "18",
"name": "Q1",
"type": "tri_state",
"description": "3-state flip-flop output Q1; high-impedance when OE is high."
},
{
"number": "19",
"name": "Q0",
"type": "tri_state",
"description": "3-state flip-flop output Q0; high-impedance when OE is high."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage; recommended 2.0-6.0 V for SN74HC574 and 4.5-5.5 V for SN74HCT574, with absolute maximum 7.0 V."
}
],
"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 ordering table is garbled. SN74HC574D is listed in the tube section, but the table rows for D ar; The datasheet does not state the package name 'SOP-20-300mil' verbatim. The SOP20 outline on page 17; The pin diagram on page 5 is garbled in the text extraction. Pin numbers and names were taken from t"
],
"pages_sent": 20,
"cost_usd": 0.0778,
"at": "2026-10-17T16:10:32"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590923056514740224",
"pages": 20,
"sha256": "4513b7374c86e098",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 20,
"described": 20,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"footprint": "viewers/footprint.html"
},
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"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
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10.26,
12.8,
2.65
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"zmin_mm": 0,
"centre_offset_mm": 0,
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"checked": "2026-10-17",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "sn74hc574d-etched.step",
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]
},
"metadata": {
"specs": {
"Manufacturer": "lingxingic",
"Package": "SOP-20-300mil",
"Category": "Logic",
"Pins": "20"
},
"characteristics": {
"version": 1,
"source": "datasheet",
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"name": "电源电压",
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{
"name": "输入钳位电流",
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{
"name": "输出钳位电流",
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"name": "电源电流",
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{
"name": "地电流",
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"name": "贮存温度",
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{
"name": "总功耗",
"symbol": "Ptot",
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"unit": "mW",
"min": null,
"typ": null,
"max": 500,
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{
"name": "焊接温度",
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"min": null,
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"name": "输入电压",
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"max": 125,
"conditions": "SN74HC574",
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"source": "datasheet"
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{
"name": "高电平输入电压",
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{
"name": "高电平输入电压",
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"name": "低电平输入电压",
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"name": "低电平输入电压",
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"name": "高电平输出电压",
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"name": "高电平输出电压",
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{
"name": "高电平输出电压",
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"typ": 4.32,
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{
"name": "高电平输出电压",
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"min": 5.48,
"typ": 5.81,
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"conditions": "Tamb=25℃; VI=VIH或VIL; IO=-7.8mA; VCC=6.0V",
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{
"name": "低电平输出电压",
"symbol": "VOL",
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"conditions": "Tamb=25℃; VI=VIH或VIL; IO=20uA; VCC=2.0V",
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{
"name": "低电平输出电压",
"symbol": "VOL",
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{
"name": "低电平输出电压",
"symbol": "VOL",
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"max": 0.26,
"conditions": "Tamb=25℃; VI=VIH或VIL; IO=7.8mA; VCC=6.0V",
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{
"name": "输入漏电流",
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"typ": null,
"max": 1,
"conditions": "Tamb=25℃; VI=VCC或GND; VCC=6.0V",
"source_page": 7,
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},
{
"name": "截止状态输出电流",
"symbol": "IOZ",
"kind": "electrical",
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"typ": null,
"max": 1,
"conditions": "Tamb=25℃; VI=VIH或VIL; VCC=6.0V; VO=VCC或GND",
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{
"name": "静态电流",
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"typ": null,
"max": 8,
"conditions": "Tamb=25℃; VI=VCC或GND; IO=0A; VCC=6.0V",
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{
"name": "高电平输入电压",
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"typ": null,
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{
"name": "高电平输入电压",
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{
"name": "高电平输出电压",
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{
"name": "高电平输出电压",
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