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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{
"schema_version": 1,
"type": "component",
"slug": "a1335lletr-dd-t",
"title": "A1335LLETR-DD-T",
"brief": "Allegro MicroSystems, LLC Angle, Linear Position Sensors, TSSOP-24. 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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"sensors",
"a1335lletr-dd-t",
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],
"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": {
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"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
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"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": {
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"pages": 29,
"sha256": "cae1cf85402d79ad",
"source_tier": "lcsc"
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"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
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"described": 24,
"cites_pages": true,
"refuses_to_fabricate": true
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},
"viewers": {
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"footprint": "viewers/footprint.html"
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"package_dims": {
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"source_page": 28,
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"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
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"verdict": "PASS",
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},
"metadata": {
"specs": {
"Manufacturer": "Allegro MicroSystems, LLC",
"Package": "TSSOP-24",
"Category": "Sensors",
"Pins": "24"
},
"appearance": {
"contacts": {
"quote": "dual die in a 24-pin TSSOP. Both packages are lead (Pb) free with 100% matte-tin leadframe plating.",
"page": 1,
"doc": "ds.pdf",
"plating": "tin"
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"version": 1,
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"characteristics": {
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"source": "datasheet",
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"rows": [
{
"name": "Forward Supply Voltage",
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"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
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"conditions": "",
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{
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"min": -40,
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"source": "datasheet"
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{
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"min": null,
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{
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"min": -65,
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"source_page": 2,
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{
"name": "Package Thermal Resistance",
"symbol": "RθJA",
"kind": "thermal",
"unit": "ºC/W",
"min": null,
"typ": 117,
"max": null,
"conditions": "LE-24 package (dual die, this MPN)",
"source_page": 2,
"source": "datasheet"
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{
"name": "Supply Voltage",
"symbol": "VCC",
"kind": "recommended_operating",
"unit": "V",
"min": 4.5,
"typ": 5,
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"source_page": 4,
"source": "datasheet"
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{
"name": "Supply Current",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": null,
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"source_page": 4,
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{
"name": "VCC Low Flag Threshold",
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{
"name": "Supply Zener Clamp Voltage",
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"conditions": "IZCC = ICC + 3 mA, TA = 25°C",
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{
"name": "Reverse Battery Voltage",
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"source_page": 4,
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{
"name": "Power-On Time",
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{
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{
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{
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"min": 2.93,
"typ": 3.3,
"max": 3.69,
"conditions": "MISO pins, TA = 25°C",
"source_page": 4,
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{
"name": "SPI Clock Frequency",
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"min": 0.1,
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"conditions": "MISO pins, CL = 50 pF",
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{
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"conditions": "Time from CS going low to SCLK falling edge",
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{
"name": "Chip Select Idle Time",
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"kind": "timing",
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"min": 200,
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"max": null,
"conditions": "Time CS must be high between SPI message frames",
"source_page": 4,
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{
"name": "MOSI Setup Time",
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"min": 10,
"typ": null,
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"conditions": "Input setup time before SCLK rising edge",
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{
"name": "MOSI Hold Time",
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"conditions": "Input hold time after SCLK rising edge",
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{
"name": "SCLK to CS Hold Time",
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"conditions": "Hold SCLK high time before CS rising edge",
"source_page": 4,
"source": "datasheet"
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{
"name": "Load Capacitance",
"symbol": "CL",
"kind": "electrical",
"unit": "pF",
"min": null,
"typ": null,
"max": 50,
"conditions": "Loading on digital output (MISO) pin",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Bus Free Time Between Stop and Start",
"symbol": "tBUF",
"kind": "timing",
"unit": "µs",
"min": 1.3,
"typ": null,
"max": null,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Hold Time Start Condition",
"symbol": "tHD(STA)",
"kind": "timing",
"unit": "µs",
"min": 0.6,
"typ": null,
"max": null,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Setup Time for Repeated Start Condition",
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},
{
"name": "SCL Low Time",
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{
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{
"name": "Data Setup Time",
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"source": "datasheet"
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{
"name": "Data Hold Time",
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"min": 0,
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"source_page": 4,
"source": "datasheet"
},
{
"name": "Setup Time for Stop Condition",
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