component
SN74LS373N
Public Made by Adomby adom
Texas Instruments Latches, DIP-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": "sn74ls373n",
"title": "SN74LS373N",
"brief": "Texas Instruments Latches, DIP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
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"component": {
"mpn": "SN74LS373N",
"manufacturer": "Texas Instruments",
"package": "DIP-20",
"pin_count": 20,
"category": "Logic",
"subcategory": "Latches",
"datasheet": "https://www.ti.com/cn/lit/gpn/sn74ls373",
"parts": {
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"footprint": "sn74ls373n.kicad_mod",
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"lbr": "sn74ls373n.lbr"
},
"distributor_links": {
"lcsc": "C10423",
"digikey": "296-1660-5-ND",
"mouser": "595-SN74LS373N"
},
"distributor_check": {
"checked_at": "2026-10-11T01:27:09Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-1660-5-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-SN74LS373N",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "OC",
"type": "input",
"description": "Buffered output-control input: when low the eight outputs show normal logic levels, and when high they go to the high-impedance state without affecting the latch contents."
},
{
"number": "2",
"name": "1Q",
"type": "tri_state",
"description": "Latch 1 3-state bus-driving output, which follows 1D while C is high and holds the latched level when C goes low."
},
{
"number": "3",
"name": "1D",
"type": "input",
"description": "Latch 1 data input, sampled while C is high on the ’LS373."
},
{
"number": "4",
"name": "2D",
"type": "input",
"description": "Latch 2 data input, sampled while C is high on the ’LS373."
},
{
"number": "5",
"name": "2Q",
"type": "tri_state",
"description": "Latch 2 3-state bus-driving output, designed for driving highly capacitive or low-impedance loads."
},
{
"number": "6",
"name": "3Q",
"type": "tri_state",
"description": "Latch 3 3-state bus-driving output, designed for driving highly capacitive or low-impedance loads."
},
{
"number": "7",
"name": "3D",
"type": "input",
"description": "Latch 3 data input, sampled while C is high on the ’LS373."
},
{
"number": "8",
"name": "4D",
"type": "input",
"description": "Latch 4 data input, sampled while C is high on the ’LS373."
},
{
"number": "9",
"name": "4Q",
"type": "tri_state",
"description": "Latch 4 3-state bus-driving output, designed for driving highly capacitive or low-impedance loads."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground reference pin; the pages provided do not state a voltage or current rating for this pin."
},
{
"number": "11",
"name": "C",
"type": "input",
"description": "Latch enable input for the ’LS373: while high the Q outputs follow D, and when taken low the output is latched at the set-up data level (Schmitt-trigger hysteresis applies only to ’S373/’S374)."
},
{
"number": "12",
"name": "5Q",
"type": "tri_state",
"description": "Latch 5 3-state bus-driving output, designed for driving highly capacitive or low-impedance loads."
},
{
"number": "13",
"name": "5D",
"type": "input",
"description": "Latch 5 data input, sampled while C is high on the ’LS373."
},
{
"number": "14",
"name": "6D",
"type": "input",
"description": "Latch 6 data input, sampled while C is high on the ’LS373."
},
{
"number": "15",
"name": "6Q",
"type": "tri_state",
"description": "Latch 6 3-state bus-driving output, designed for driving highly capacitive or low-impedance loads."
},
{
"number": "16",
"name": "7Q",
"type": "tri_state",
"description": "Latch 7 3-state bus-driving output, designed for driving highly capacitive or low-impedance loads."
},
{
"number": "17",
"name": "7D",
"type": "input",
"description": "Latch 7 data input, sampled while C is high on the ’LS373."
},
{
"number": "18",
"name": "8D",
"type": "input",
"description": "Latch 8 data input, sampled while C is high on the ’LS373."
},
{
"number": "19",
"name": "8Q",
"type": "tri_state",
"description": "Latch 8 3-state bus-driving output, designed for driving highly capacitive or low-impedance loads."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "Supply pin; the pages provided do not state a supply voltage range for this pin."
}
],
"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 TOP VIEW text for the DW/N/NS package is scrambled in the extracted text, so the pin-number-to-s; The provided pages (10 of 34) contain no electrical characteristics, so no supply voltage, current, "
],
"pages_sent": 10,
"cost_usd": 0.07,
"at": "2026-10-11T01:26:52"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/sn74ls373",
"pages": 34,
"sha256": "5d2c396010d2b304",
"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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"units": "mm",
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"zmin_mm": -3.3,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "ca359c9b9e0ce94efcb6c96866513f659eef6517d629ace3c4a0a779f6fd57bb",
"checked": "2026-10-11",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
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"sha256": "4262d2b4892854555dcf4f94311cead509ece5c05ecd8b4ab2768b60959fa0b6",
"checked": "2026-10-11",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "DIP-20",
"Category": "Logic",
"Pins": "20"
}
},
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"discovery_pitch": "SN74LS373N (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
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