component
SN74ACT533PWR
Public Made by Adomby adom
Texas Instruments Latches, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "sn74act533pwr",
"version": "0.1.0",
"type": "component",
"description": "Texas Instruments Latches, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"logic",
"sn74act533pwr",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
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"README.md",
"sn74act533pwr.kicad_sym",
"sn74act533pwr.kicad_mod",
"sn74act533pwr.glb",
"sn74act533pwr.step",
"sn74act533pwr.lbr",
"docs/hero.png",
"docs/sn74act533pwr-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"sn74act533pwr-hero.glb",
"sn74act533pwr-hero.overlay.json"
],
"component": {
"mpn": "SN74ACT533PWR",
"manufacturer": "Texas Instruments",
"package": "TSSOP-20",
"pin_count": 20,
"category": "Logic",
"subcategory": "Latches",
"datasheet": "https://www.ti.com/lit/ds/symlink/sn74act533.pdf",
"parts": {
"symbol": "sn74act533pwr.kicad_sym",
"footprint": "sn74act533pwr.kicad_mod",
"model_3d": "sn74act533pwr-hero.glb",
"model_3d_plain": "sn74act533pwr.glb",
"model_3d_step": "sn74act533pwr-etched.step",
"model_3d_step_plain": "sn74act533pwr.step",
"lbr": "sn74act533pwr.lbr"
},
"distributor_links": {
"lcsc": "C2869027",
"digikey": "296-4427-2-ND",
"mouser": "595-SN74ACT533PWR"
},
"distributor_check": {
"checked_at": "2026-10-08T16:50:25Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-4427-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-SN74ACT533PWR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "OE",
"type": "input",
"description": "Active-low buffered output enable that places all eight Q outputs in the high-impedance state when high; it should be tied to VCC through a pullup resistor to keep the outputs high-impedance during power up or power down."
},
{
"number": "2",
"name": "1Q",
"type": "tri_state",
"description": "Inverting 3-state output of latch 1 that follows the complement of 1D while LE is high and is high-impedance when OE is high."
},
{
"number": "3",
"name": "1D",
"type": "input",
"description": "Data input to latch 1; it must be set up at least 4 ns (min, SN74ACT533 at 4.5-5.5 V) before LE falls and held at least 2.5 ns after LE falls."
},
{
"number": "4",
"name": "2D",
"type": "input",
"description": "Data input to latch 2; it must be set up at least 4 ns before LE falls and held at least 2.5 ns after LE falls."
},
{
"number": "5",
"name": "2Q",
"type": "tri_state",
"description": "Inverting 3-state output of latch 2 that follows the complement of 2D while LE is high and is high-impedance when OE is high."
},
{
"number": "6",
"name": "3Q",
"type": "tri_state",
"description": "Inverting 3-state output of latch 3 that follows the complement of 3D while LE is high and is high-impedance when OE is high."
},
{
"number": "7",
"name": "3D",
"type": "input",
"description": "Data input to latch 3; it must be set up at least 4 ns before LE falls and held at least 2.5 ns after LE falls."
},
{
"number": "8",
"name": "4D",
"type": "input",
"description": "Data input to latch 4; it must be set up at least 4 ns before LE falls and held at least 2.5 ns after LE falls."
},
{
"number": "9",
"name": "4Q",
"type": "tri_state",
"description": "Inverting 3-state output of latch 4 that follows the complement of 4D while LE is high and is high-impedance when OE is high."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground reference; the datasheet requires all unused inputs to be held at VCC or GND for proper operation."
},
{
"number": "11",
"name": "LE",
"type": "input",
"description": "Latch enable: when high the Q outputs follow the complement of D, and when taken low the outputs latch; the minimum LE high pulse width is 6 ns for SN74ACT533."
},
{
"number": "12",
"name": "5Q",
"type": "tri_state",
"description": "Inverting 3-state output of latch 5 that follows the complement of 5D while LE is high and is high-impedance when OE is high."
},
{
"number": "13",
"name": "5D",
"type": "input",
"description": "Data input to latch 5; it must be set up at least 4 ns before LE falls and held at least 2.5 ns after LE falls."
},
{
"number": "14",
"name": "6D",
"type": "input",
"description": "Data input to latch 6; it must be set up at least 4 ns before LE falls and held at least 2.5 ns after LE falls."
},
{
"number": "15",
"name": "6Q",
"type": "tri_state",
"description": "Inverting 3-state output of latch 6 that follows the complement of 6D while LE is high and is high-impedance when OE is high."
},
{
"number": "16",
"name": "7Q",
"type": "tri_state",
"description": "Inverting 3-state output of latch 7 that follows the complement of 7D while LE is high and is high-impedance when OE is high."
},
{
"number": "17",
"name": "7D",
"type": "input",
"description": "Data input to latch 7; it must be set up at least 4 ns before LE falls and held at least 2.5 ns after LE falls."
},
{
"number": "18",
"name": "8D",
"type": "input",
"description": "Data input to latch 8; it must be set up at least 4 ns before LE falls and held at least 2.5 ns after LE falls."
},
{
"number": "19",
"name": "8Q",
"type": "tri_state",
"description": "Inverting 3-state output of latch 8 that follows the complement of 8D while LE is high and is high-impedance when OE is high."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage; the recommended operating range is 4.5 V to 5.5 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 pinout comes from the TOP VIEW figure on page 1, which is shown for the DB, DW, N, NS and PW pac"
],
"pages_sent": 11,
"cost_usd": 0.0687,
"at": "2026-10-08T16:49:55"
},
"datasheet": {
"url": "https://www.ti.com/lit/ds/symlink/sn74act533.pdf",
"pages": 11,
"sha256": "3b8982b6e118ce9b",
"source_tier": "mfr"
},
"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",
"extents_mm": [
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6.5,
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],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "sn74act533pwr-etched.step",
"role": "eda",
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}