component
ISO7721FQDWRQ1
Public Made by Adomby adom
Texas Instruments Digital Isolators, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "ISO7721FQDWRQ1",
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"manufacturer": "Texas Instruments",
"package": "SOIC-16",
"pin_count": 16,
"category": "Signal Isolation Devices",
"subcategory": "Digital Isolators",
"datasheet": "https://www.ti.com/cn/lit/gpn/iso7721-q1",
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"distributor_links": {
"lcsc": "C5216459",
"digikey": "296-ISO7721FQDWRQ1TR-ND",
"mouser": "595-ISO7721FQDWRQ1"
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"checked_at": "2026-10-08T18:11:01Z",
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"status": "found",
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"pins": [
{
"number": "1",
"name": "GND1",
"type": "power_in",
"description": "Ground connection for VCC1 on the input side; decouple VCC1 to GND1 with 0.1 µF as recommended by the datasheet."
},
{
"number": "2",
"name": "NC",
"type": "unconnected",
"description": "Not connected per the DW-16 pin table; no function on this device."
},
{
"number": "3",
"name": "VCC1",
"type": "power_in",
"description": "Input-side supply voltage, recommended 2.25 V to 5.5 V, set independently of VCC2; place a 0.1 µF decoupling capacitor between VCC1 and GND1."
},
{
"number": "4",
"name": "OUTA",
"type": "output",
"description": "Channel A output on the input-side reference (reverse-direction channel driven from INA, pin 13); on F-suffix devices it defaults low when the input side is unpowered or INA is open."
},
{
"number": "5",
"name": "INB",
"type": "input",
"description": "Channel B logic input referenced to VCCI, with VIH at least 0.7 x VCCI and VIL at most 0.3 x VCCI, supporting up to 100 Mbps."
},
{
"number": "6",
"name": "NC",
"type": "unconnected",
"description": "Not connected per the DW-16 pin table; no function on this device."
},
{
"number": "7",
"name": "GND1",
"type": "power_in",
"description": "Ground connection for VCC1 on the input side (second input-side ground pin on the DW-16 package)."
},
{
"number": "8",
"name": "NC",
"type": "unconnected",
"description": "Not connected per the DW-16 pin table; no function on this device."
},
{
"number": "9",
"name": "GND2",
"type": "power_in",
"description": "Ground connection for VCC2 on the output side; decouple VCC2 to GND2 with 0.1 µF."
},
{
"number": "10",
"name": "NC",
"type": "unconnected",
"description": "Not connected per the DW-16 pin table; no function on this device."
},
{
"number": "11",
"name": "NC",
"type": "unconnected",
"description": "Not connected per the DW-16 pin table; no function on this device."
},
{
"number": "12",
"name": "OUTB",
"type": "output",
"description": "Channel B output referenced to VCCO; VOH is at least VCCO - 0.4 V at 5 V with IOH = -4 mA, and the F-suffix device defaults low when the input is unpowered or open."
},
{
"number": "13",
"name": "INA",
"type": "input",
"description": "Channel A logic input (reverse-direction channel) on the output-side reference, with VIH at least 0.7 x VCCI and VIL at most 0.3 x VCCI, supporting up to 100 Mbps."
},
{
"number": "14",
"name": "VCC2",
"type": "power_in",
"description": "Output-side supply voltage, recommended 2.25 V to 5.5 V, set independently of VCC1; place a 0.1 µF decoupling capacitor between VCC2 and GND2."
},
{
"number": "15",
"name": "NC",
"type": "unconnected",
"description": "Not connected per the DW-16 pin table; no function on this device."
},
{
"number": "16",
"name": "GND2",
"type": "power_in",
"description": "Ground connection for VCC2 on the output side (second output-side ground pin on the DW-16 package)."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
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"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The DW-16 pin assignments for GND1 and GND2 are taken from Table 5-1 and Figure 5-2; the datasheet i; The datasheet gives the 16-pin DW pin table in one list shared across ISO7720-Q1 and ISO7721-Q1 and ",
"3/16 pins cited to the wrong page (name found elsewhere): ['5:INB@p7', '12:OUTB@p13', '13:INA@p7']"
],
"pages_sent": 33,
"cost_usd": 0.1589,
"at": "2026-10-08T18:10:43"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/iso7721-q1",
"pages": 52,
"sha256": "fbb553de6ff2b6fe",
"source_tier": "lcsc"
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"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 16,
"described": 16,
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"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "SOIC-16",
"Category": "Signal Isolation Devices",
"Pins": "16"
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"email": "[email protected]"
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