component
L9663-TR-1
Public Made by Adomby adom
STMicroelectronics Interface - Specialized, QFN-28-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "l9663-tr-1",
"version": "0.1.0",
"type": "component",
"description": "STMicroelectronics Interface - Specialized, QFN-28-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"communication interface chip-uart-485-232",
"l9663-tr-1",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
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"path": "docs/hero.png"
},
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"l9663-tr-1.step",
"l9663-tr-1.lbr",
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"docs/l9663-tr-1-datasheet.pdf",
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],
"component": {
"mpn": "L9663-TR-1",
"manufacturer": "STMicroelectronics",
"package": "QFN-28-EP(5x5)",
"pin_count": 29,
"category": "Communication Interface Chip/UART/485/232",
"subcategory": "Interface - Specialized",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923832790339584",
"parts": {
"symbol": "l9663-tr-1.kicad_sym",
"footprint": "l9663-tr-1.kicad_mod",
"model_3d": "l9663-tr-1-hero.glb",
"model_3d_plain": "l9663-tr-1.glb",
"model_3d_step": "l9663-tr-1-etched.step",
"model_3d_step_plain": "l9663-tr-1.step",
"lbr": "l9663-tr-1.lbr"
},
"distributor_links": {
"lcsc": "C2674111",
"digikey": "L9663-TR-1-ND",
"mouser": "511-L9663-TR-1"
},
"distributor_check": {
"checked_at": "2026-10-08T02:12:39Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "L9663-TR-1-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "511-L9663-TR-1",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "SYNC1",
"type": "input",
"description": "Direct interface sync pulse trigger input for transceiver 1, with a pin voltage range of -0.3 V to 6.5 V."
},
{
"number": "2",
"name": "DOUT1",
"type": "output",
"description": "Direct interface 1 output, also used as Interrupt 1; the pin range is -0.3 V to VDD+0.3 V, not exceeding 6.5 V."
},
{
"number": "3",
"name": "CLKIN",
"type": "input",
"description": "External clock input; the pin voltage range is -0.3 V to 6.5 V."
},
{
"number": "4",
"name": "SYNC2",
"type": "input",
"description": "Direct interface sync pulse trigger input for transceiver 2, with a pin voltage range of -0.3 V to 6.5 V."
},
{
"number": "5",
"name": "DOUT2",
"type": "output",
"description": "Direct interface 2 output, also used as Interrupt 2; the pin range is -0.3 V to VDD+0.3 V, not exceeding 6.5 V."
},
{
"number": "6",
"name": "NC(1)",
"type": "unconnected",
"description": "Not connected internally; must be left open."
},
{
"number": "7",
"name": "BH1",
"type": "bidirectional",
"description": "Bootstrap capacitor pin 1 or SYNC voltage supply from the ECU for transceiver 1; voltage range -0.3 V to 40 V for BHx/BLx."
},
{
"number": "8",
"name": "BL1",
"type": "bidirectional",
"description": "Bootstrap capacitor pin 2 for transceiver 1; voltage range -0.3 V to 40 V for BHx/BLx."
},
{
"number": "9",
"name": "GND1",
"type": "power_in",
"description": "Ground return for the PSI5 interface (analog and substrate ground), internally shorted to GND2 and the reference for all analog voltages."
},
{
"number": "10",
"name": "PSI1",
"type": "bidirectional",
"description": "PSI5 interface 1 line; voltage range -1.5 V to 40 V, and the channel is short-to-ground tolerant with ±1.5 V ground shift."
},
{
"number": "11",
"name": "VAS",
"type": "power_out",
"description": "PSI5 pre-regulated voltage supply, selectable as 5.3 V or 7.6 V by SPI; absolute voltage range -0.3 V to 40 V."
},
{
"number": "12",
"name": "PSI2",
"type": "bidirectional",
"description": "PSI5 interface 2 line; voltage range -1.5 V to 40 V, and the channel is short-to-ground tolerant with ±1.5 V ground shift."
},
{
"number": "13",
"name": "GND2",
"type": "power_in",
"description": "Ground return for the PSI5 interface (analog and substrate ground), internally shorted to GND1 and the reference for all analog voltages."
},
{
"number": "14",
"name": "BL2",
"type": "bidirectional",
"description": "Bootstrap capacitor pin 2 for transceiver 2; voltage range -0.3 V to 40 V for BHx/BLx."
},
{
"number": "15",
"name": "BH2",
"type": "bidirectional",
"description": "Bootstrap capacitor pin 1 or SYNC voltage supply from the ECU for transceiver 2; voltage range -0.3 V to 40 V for BHx/BLx."
},
{
"number": "16",
"name": "VB",
"type": "power_in",
"description": "Input voltage supply for the IC; absolute range -0.3 V to 40 V, with an operating voltage of 4.8 V (5.2 V for sync pulses) to 35 V."
},
{
"number": "17",
"name": "VASSUP",
"type": "power_in",
"description": "Supply for the VAS pre-regulator and charge pump; absolute voltage range -0.3 V to 40 V."
},
{
"number": "18",
"name": "VGS",
"type": "bidirectional",
"description": "Gate driver pin for the external n-channel FET of the VAS pre-regulator; absolute voltage range -0.3 V to 40 V."
},
{
"number": "19",
"name": "NC(2)",
"type": "unconnected",
"description": "Not connected internally; it can be connected to GND externally."
},
{
"number": "20",
"name": "MOSI",
"type": "input",
"description": "SPI data input; the pin voltage range is -0.3 V to 6.5 V."
},
{
"number": "21",
"name": "SCLK",
"type": "input",
"description": "SPI clock input; the pin voltage range is -0.3 V to 6.5 V."
},
{
"number": "22",
"name": "CS",
"type": "input",
"description": "SPI chip select input; the pin voltage range is -0.3 V to 6.5 V."
},
{
"number": "23",
"name": "RESETN",
"type": "input",
"description": "Reset input; while RESETN is low the PSIx lines are deactivated, with a pin voltage range of -0.3 V to 6.5 V."
},
{
"number": "24",
"name": "TM",
"type": "input",
"description": "Test-mode pin that must be connected to GND for safety reasons; the pin voltage range is -0.3 V to 6.5 V."
},
{
"number": "25",
"name": "VINTD",
"type": "power_out",
"description": "Internal digital supply generated by the IC, requiring a 100 nF ceramic decoupling capacitor to DGND; absolute range -0.3 V to 4.6 V."
},
{
"number": "26",
"name": "DGND",
"type": "power_in",
"description": "Ground return for the digital part; all digital voltages are related to DGND."
},
{
"number": "27",
"name": "VDD",
"type": "power_in",
"description": "Digital I/O supply, requiring a 100 nF blocking capacitor close to the pin; absolute range -0.3 V to 6.5 V."
},
{
"number": "28",
"name": "MISO",
"type": "output",
"description": "SPI data output; the pin range is -0.3 V to VDD+0.3 V, not exceeding 6.5 V."
},
{
"number": "29",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"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: Order code L9663-TR-1 is listed in Table 1 as Tape & Reel for the VFQFPN28 package (L9663-1 is the V; The VFQFPN28 pin table and figure do not list or describe an exposed pad connection. The exposed-pad; Pin 11 VAS is typed power_out because the pre-regulator can generate it, but the datasheet lists it ",
"exposed pad 29 added from the footprint"
],
"pages_sent": 21,
"cost_usd": 0.108,
"at": "2026-10-08T02:12:21"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923832790339584",
"pages": 105,
"sha256": "d50c4b39968475f0",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 29,
"described": 29,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"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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"zmin_mm": 0.0,
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"footprint_binding": "identity",
"sha256": "e9d6d740f505b03e5aa0ac826330f9e269344b84656d051f50eb07ac162749eb",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "l9663-tr-1-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
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"sha256": "1015ec873f03c8f77ed9141421edee28818d7f1d81d1826b1872c67a04ede396",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}