component
A1335LLETR-DD-T
Public Made by Adomby adom
Allegro MicroSystems, LLC Angle, Linear Position Sensors, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "a1335lletr-dd-t",
"version": "0.1.0",
"type": "component",
"description": "Allegro MicroSystems, LLC Angle, Linear Position Sensors, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"sensors",
"a1335lletr-dd-t",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"a1335lletr-dd-t.kicad_sym",
"a1335lletr-dd-t.kicad_mod",
"a1335lletr-dd-t.glb",
"a1335lletr-dd-t.step",
"a1335lletr-dd-t.lbr",
"docs/hero.png",
"docs/a1335lletr-dd-t-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"a1335lletr-dd-t-hero.glb",
"a1335lletr-dd-t-hero.overlay.json",
"a1335lletr-dd-t-etched.glb"
],
"component": {
"mpn": "A1335LLETR-DD-T",
"manufacturer": "Allegro MicroSystems, LLC",
"package": "TSSOP-24",
"pin_count": 24,
"category": "Sensors",
"subcategory": "Angle, Linear Position Sensors",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c2c4e177bb8c6439f09a20f26263cf97.pdf",
"parts": {
"symbol": "a1335lletr-dd-t.kicad_sym",
"footprint": "a1335lletr-dd-t.kicad_mod",
"model_3d": "a1335lletr-dd-t-hero.glb",
"model_3d_plain": "a1335lletr-dd-t-etched.glb",
"model_3d_step": "a1335lletr-dd-t-etched.step",
"model_3d_step_plain": "a1335lletr-dd-t.step",
"lbr": "a1335lletr-dd-t.lbr"
},
"distributor_links": {
"lcsc": "C2655203",
"digikey": "620-1767-2-ND",
"mouser": "250-A1335LLETR-DD-T"
},
"distributor_check": {
"checked_at": "2026-10-30T23:53:45Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "620-1767-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "250-A1335LLETR-DD-T",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "DGND_1",
"type": "power_in",
"description": "Device digital ground terminal for die 1."
},
{
"number": "2",
"name": "BYP_1",
"type": "passive",
"description": "Internal bypass node for die 1, to be connected with a bypass capacitor to DGND."
},
{
"number": "3",
"name": "AGND_1",
"type": "power_in",
"description": "Device analog ground terminal for die 1."
},
{
"number": "4",
"name": "NC",
"type": "unconnected",
"description": "Not connected; connect to GND for optimal ESD performance."
},
{
"number": "5",
"name": "VCC_1",
"type": "power_in",
"description": "Device power supply and input for EEPROM writing pulses for die 1; used to enter/exit Manchester Serial Communication mode and serves as programming data input once the mode has been entered."
},
{
"number": "6",
"name": "ISEL_2",
"type": "input",
"description": "Selects between I2C operation (set to logic low) or SPI operation (set to logic high) for die 2; set low for SENT/Manchester operation."
},
{
"number": "7",
"name": "SENT_2",
"type": "output",
"description": "SENT transmission output terminal for die 2, also the Manchester output in Manchester mode; open drain, pull-up to external supply."
},
{
"number": "8",
"name": "SDA_2/MISO_2",
"type": "bidirectional",
"description": "I2C digital data terminal for die 2 (digital output of evaluated target angle and programming data input), open drain with external pull-up to 3.3 V; SPI Master Input/Slave Output terminal for die 2."
},
{
"number": "9",
"name": "SCL_2/SCLK_2",
"type": "input",
"description": "Digital serial clock input for die 2 (I2C: SCL, SPI: SCLK); open drain, pull up externally to 3.3 V."
},
{
"number": "10",
"name": "SA1_2/MOSI_2",
"type": "input",
"description": "I2C: SA1 digital input setting slave address bit 1, tied to BYP for 1 or DGND for 0; SPI: Master Output/Slave Input terminal for die 2."
},
{
"number": "11",
"name": "SA0_2/CS_2",
"type": "input",
"description": "I2C: SA0 digital input setting slave address bit 0, tied to BYP for 1 or DGND for 0; SPI: active-low Chip Select input for die 2."
},
{
"number": "12",
"name": "DGND_2",
"type": "power_in",
"description": "Device digital ground terminal for die 2."
},
{
"number": "13",
"name": "DGND_2",
"type": "power_in",
"description": "Device digital ground terminal for die 2."
},
{
"number": "14",
"name": "BYP_2",
"type": "passive",
"description": "Internal bypass node for die 2, to be connected with a bypass capacitor to DGND."
},
{
"number": "15",
"name": "AGND_2",
"type": "power_in",
"description": "Device analog ground terminal for die 2."
},
{
"number": "16",
"name": "NC",
"type": "unconnected",
"description": "Not connected; connect to GND for optimal ESD performance."
},
{
"number": "17",
"name": "VCC_2",
"type": "power_in",
"description": "Device power supply and input for EEPROM writing pulses for die 2; used to enter/exit Manchester Serial Communication mode and serves as programming data input once the mode has been entered."
},
{
"number": "18",
"name": "ISEL_1",
"type": "input",
"description": "Selects between I2C operation (set to logic low) or SPI operation (set to logic high) for die 1; set low for SENT/Manchester operation."
},
{
"number": "19",
"name": "SENT_1",
"type": "output",
"description": "SENT transmission output terminal for die 1, also the Manchester output in Manchester mode; open drain, pull-up to external supply."
},
{
"number": "20",
"name": "SDA_1/MISO_1",
"type": "bidirectional",
"description": "I2C digital data terminal for die 1 (digital output of evaluated target angle and programming data input), open drain with external pull-up to 3.3 V; SPI Master Input/Slave Output terminal for die 1."
},
{
"number": "21",
"name": "SCL_1/SCLK_1",
"type": "input",
"description": "Digital serial clock input for die 1 (I2C: SCL, SPI: SCLK); open drain, pull up externally to 3.3 V."
},
{
"number": "22",
"name": "SA1_1/MOSI_1",
"type": "input",
"description": "I2C: SA1 digital input setting slave address bit 1, tied to BYP for 1 or DGND for 0; SPI: Master Output/Slave Input terminal for die 1."
},
{
"number": "23",
"name": "SA0_1/CS_1",
"type": "input",
"description": "I2C: SA0 digital input setting slave address bit 0, tied to BYP for 1 or DGND for 0; SPI: active-low Chip Select input for die 1."
},
{
"number": "24",
"name": "DGND_1",
"type": "power_in",
"description": "Device digital ground terminal for die 1."
}
],
"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 MPN A1335LLETR-DD-T is the dual-die variant, which the selection guide lists in a 24-pin TSSOP; ; The datasheet's terminal list gives two pin numbers for DGND_1 (1 and 24), DGND_2 (12 and 13), and N; The overbar on the active-low chip-select names (SA0_1/CS_1, SA0_2/CS_2) was lost in text extraction"
],
"pages_sent": 4,
"cost_usd": 0.0531,
"at": "2026-10-30T23:53:24"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/c2c4e177bb8c6439f09a20f26263cf97.pdf",
"pages": 29,
"sha256": "cae1cf85402d79ad",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 24,
"described": 24,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "a1335lletr-dd-t.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
7.8,
0.97
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "706322f42d9793ebf28d5b80100a68bfa8769998a00b78acadf7af937fc1454f",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "a1335lletr-dd-t-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
7.8,
0.97
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "dc0fb6c8d06fcde16ac1c3b74422336f158a310730f6cf52ccefcabb91b9d8f1",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "LE (LE-24, 24-Pin TSSOP, Dual Die)",
"source_page": 28,
"D": {
"nom_mm": 7.8,
"range_mm": [
null,
null
]
},
"E1": {
"nom_mm": 4.4,
"range_mm": [
null,
null
]
},
"E": {
"nom_mm": 6.4,
"range_mm": [
null,
null
]
},
"e": {
"nom_mm": 0.65,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 1.2,
"range_mm": [
null,
1.2
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "a1335lletr-dd-t.step",
"verdict": "PASS",
"reasons": [
"height and body within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
}
}