component
CY8C21434-24LTXIT
Public Made by Adomby adom
Infineon Cypress Semicon Microcontrollers (MCU/MPU/SOC), QFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "cy8c21434-24ltxit",
"title": "CY8C21434-24LTXIT",
"brief": "Infineon Cypress Semicon Microcontrollers (MCU/MPU/SOC), QFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"embedded processors & controllers",
"cy8c21434-24ltxit",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "CY8C21434-24LTXIT",
"manufacturer": "Infineon Cypress Semicon",
"package": "QFN-32-EP(5x5)",
"pin_count": 33,
"category": "Embedded Processors & Controllers",
"subcategory": "Microcontrollers (MCU/MPU/SOC)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588913158882385920",
"parts": {
"symbol": "cy8c21434-24ltxit.kicad_sym",
"footprint": "cy8c21434-24ltxit.kicad_mod",
"model_3d": "cy8c21434-24ltxit-hero.glb",
"model_3d_plain": "cy8c21434-24ltxit-etched.glb",
"model_3d_step": "cy8c21434-24ltxit-etched.step",
"model_3d_step_plain": "cy8c21434-24ltxit.step",
"lbr": "cy8c21434-24ltxit.lbr"
},
"distributor_links": {
"lcsc": "C511131",
"digikey": "448-CY8C21434-24LTXITTR-ND",
"mouser": "727-CY8C2143424LTXIT"
},
"distributor_check": {
"checked_at": "2026-10-18T02:31:23Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "448-CY8C21434-24LTXITTR-ND",
"status": "found"
},
"mouser": {
"pn": "727-CY8C2143424LTXIT",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "P0[1]",
"type": "bidirectional",
"description": "Analog column mux input and integrating input; every port pin also supports digital I/O and connection to the common analog bus."
},
{
"number": "2",
"name": "P2[7]",
"type": "bidirectional",
"description": "Port 2 bit 7 general-purpose I/O that connects to the analog mux bus."
},
{
"number": "3",
"name": "P2[5]",
"type": "bidirectional",
"description": "Port 2 bit 5 general-purpose I/O that connects to the analog mux bus."
},
{
"number": "4",
"name": "P2[3]",
"type": "bidirectional",
"description": "Port 2 bit 3 general-purpose I/O that connects to the analog mux bus."
},
{
"number": "5",
"name": "P2[1]",
"type": "bidirectional",
"description": "Port 2 bit 1 general-purpose I/O that connects to the analog mux bus."
},
{
"number": "6",
"name": "P3[3]",
"type": "bidirectional",
"description": "Port 3 bit 3 general-purpose I/O that connects to the analog mux bus; this pin is P3[3] on the CY8C21434 (on the CY8C21634 it is the SMP pin)."
},
{
"number": "7",
"name": "P3[1]",
"type": "bidirectional",
"description": "Port 3 bit 1 general-purpose I/O that connects to the analog mux bus; this pin is P3[1] on the CY8C21434 (on the CY8C21634 it is VSS)."
},
{
"number": "8",
"name": "P1[7]",
"type": "bidirectional",
"description": "Port 1 bit 7 general-purpose I/O, also the I2C SCL line."
},
{
"number": "9",
"name": "P1[5]",
"type": "bidirectional",
"description": "Port 1 bit 5 general-purpose I/O, also the I2C SDA line."
},
{
"number": "10",
"name": "P1[3]",
"type": "bidirectional",
"description": "Port 1 bit 3 general-purpose I/O that connects to the analog mux bus."
},
{
"number": "11",
"name": "P1[1]",
"type": "bidirectional",
"description": "Port 1 bit 1, also I2C SCL and ISSP-SCLK; ISSP pins are not high Z at POR."
},
{
"number": "12",
"name": "VSS",
"type": "power_in",
"description": "Ground connection; all VSS pins should be brought out to one common GND plane."
},
{
"number": "13",
"name": "P1[0]",
"type": "bidirectional",
"description": "Port 1 bit 0, also I2C SDA and ISSP-SDATA; ISSP pins are not high Z at POR."
},
{
"number": "14",
"name": "P1[2]",
"type": "bidirectional",
"description": "Port 1 bit 2 general-purpose I/O that connects to the analog mux bus."
},
{
"number": "15",
"name": "P1[4]",
"type": "bidirectional",
"description": "Port 1 bit 4, also the optional external clock input (EXTCLK)."
},
{
"number": "16",
"name": "P1[6]",
"type": "bidirectional",
"description": "Port 1 bit 6 general-purpose I/O that connects to the analog mux bus."
},
{
"number": "17",
"name": "XRES",
"type": "input",
"description": "Active high external reset with internal pull-down."
},
{
"number": "18",
"name": "P3[0]",
"type": "bidirectional",
"description": "Port 3 bit 0 general-purpose I/O that connects to the analog mux bus."
},
{
"number": "19",
"name": "P3[2]",
"type": "bidirectional",
"description": "Port 3 bit 2 general-purpose I/O that connects to the analog mux bus."
},
{
"number": "20",
"name": "P2[0]",
"type": "bidirectional",
"description": "Port 2 bit 0 general-purpose I/O that connects to the analog mux bus."
},
{
"number": "21",
"name": "P2[2]",
"type": "bidirectional",
"description": "Port 2 bit 2 general-purpose I/O that connects to the analog mux bus."
},
{
"number": "22",
"name": "P2[4]",
"type": "bidirectional",
"description": "Port 2 bit 4 general-purpose I/O that connects to the analog mux bus."
},
{
"number": "23",
"name": "P2[6]",
"type": "bidirectional",
"description": "Port 2 bit 6 general-purpose I/O that connects to the analog mux bus."
},
{
"number": "24",
"name": "P0[0]",
"type": "bidirectional",
"description": "Analog column mux input; every port pin also supports digital I/O."
},
{
"number": "25",
"name": "P0[2]",
"type": "bidirectional",
"description": "Analog column mux input; every port pin also supports digital I/O."
},
{
"number": "26",
"name": "P0[4]",
"type": "bidirectional",
"description": "Analog column mux input; every port pin also supports digital I/O."
},
{
"number": "27",
"name": "P0[6]",
"type": "bidirectional",
"description": "Analog column mux input; every port pin also supports digital I/O."
},
{
"number": "28",
"name": "VDD",
"type": "power_in",
"description": "Supply voltage."
},
{
"number": "29",
"name": "P0[7]",
"type": "bidirectional",
"description": "Analog column mux input; every port pin also supports digital I/O."
},
{
"number": "30",
"name": "P0[5]",
"type": "bidirectional",
"description": "Analog column mux input; every port pin also supports digital I/O."
},
{
"number": "31",
"name": "P0[3]",
"type": "bidirectional",
"description": "Analog column mux input and integrating input; every port pin also supports digital I/O."
},
{
"number": "32",
"name": "VSS",
"type": "power_in",
"description": "Ground connection; all VSS pins should be brought out to one common GND plane."
},
{
"number": "33",
"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: The 32-pin QFN exposed center pad (E-Pad) has no pin number in the datasheet, so it is not listed. N; The ordering table lists CY8C21434-24LTXIT as the 1.00 max Sawn QFN and refers to page 12 for pin di; KiCad types for GPIO pins are mapped from the datasheet's 'I/O' label to bidirectional. The datashee",
"exposed pad 33 added from the footprint"
],
"pages_sent": 35,
"cost_usd": 0.1837,
"at": "2026-10-18T02:29:36"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588913158882385920",
"pages": 60,
"sha256": "7db3409733a84c2e",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 33,
"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "cy8c21434-24ltxit.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
0.875
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "cy8c21434-24ltxit-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
0.875
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "1e72605272f590b2dbbccc06c904001e0d7ec102e3e4cb216c819920ffe2fbca",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Infineon Cypress Semicon",
"Package": "QFN-32-EP(5x5)",
"Category": "Embedded Processors & Controllers",
"Pins": "33"
},
"appearance": {
"housing": {
"quote": "The emulator consists of a base unit that connects to the PC",
"page": 7,
"doc": "ds.pdf",
"material": "PC"
},
"version": 1,
"datasheet_sha256": "7db3409733a84c2e74acff6c0a87c5f97931c5dc1a7afe0519e3dcbde3748043"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "7db3409733a84c2e74acff6c0a87c5f97931c5dc1a7afe0519e3dcbde3748043",
"rows": [
{
"name": "Storage temperature",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": 25,
"max": 100,
"conditions": "Higher storage temperatures reduce data retention time",
"source_page": 20,
"source": "datasheet"
},
{
"name": "Ambient temperature with power applied",
"symbol": "TA",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 20,
"source": "datasheet"
},
{
"name": "Supply voltage on VDD relative to VSS",
"symbol": "VDD",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 20,
"source": "datasheet"
},
{
"name": "Maximum current into any port pin",
"symbol": "IMIO",
"kind": "absolute_maximum",
"unit": "mA",
"min": -25,
"typ": null,
"max": 50,
"conditions": "",
"source_page": 20,
"source": "datasheet"
},
{
"name": "Electrostatic discharge voltage",
"symbol": "ESD",
"kind": "absolute_maximum",
"unit": "V",
"min": 2000,
"typ": null,
"max": null,
"conditions": "Human body model ESD",
"source_page": 20,
"source": "datasheet"
},
{
"name": "Latch-up current",
"symbol": "LU",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 200,
"conditions": "",
"source_page": 20,
"source": "datasheet"
},
{
"name": "Junction temperature",
"symbol": "TJ",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 100,
"conditions": "Temperature rise from ambient to junction is package specific (Table 29)",
"source_page": 20,
"source": "datasheet"
},
{
"name": "Ambient temperature (operating)",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 20,
"source": "datasheet"
},
{
"name": "Supply voltage",
"symbol": "VDD",
"kind": "electrical",
"unit": "V",
"min": 2.4,
"typ": null,
"max": 5.25,
"conditions": "",
"source_page": 21,
"source": "datasheet"
},
{
"name": "Supply current, IMO = 24 MHz",
"symbol": "IDD",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 3,
"max": 4,
"conditions": "VDD = 5.0 V, TA = 25 °C, CPU = 3 MHz, 48 MHz disabled",
"source_page": 21,
"source": "datasheet"
},
{
"name": "Supply current, IMO = 6 MHz using SLIMO mode",
"symbol": "IDD3",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1.2,
"max": 2,
"conditions": "VDD = 3.3 V, TA = 25 °C, CPU = 3 MHz, clock doubler disabled",
"source_page": 21,
"source": "datasheet"
},
{
"name": "Supply current, IMO = 6 MHz using SLIMO mode (2.7 V)",
"symbol": "IDD27",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1.1,
"max": 1.5,
"conditions": "VDD = 2.55 V, TA = 25 °C, CPU = 3 MHz, clock doubler disabled",
"source_page": 21,
"source": "datasheet"
},
{
"name": "Sleep (mode) current with POR, LVD, sleep timer, WDT and internal slow oscillator active (mid temperature range)",
"symbol": "ISB27",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 2.6,
"max": 4,
"conditions": "VDD = 2.55 V, 0 °C ≤ TA ≤ 40 °C",
"source_page": 21,
"source": "datasheet"
},
{
"name": "Sleep (mode) current with POR, LVD, Sleep Timer, WDT and internal slow oscillator active",
"symbol": "ISB",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 2.8,
"max": 5,
"conditions": "VDD = 3.3 V, –40 °C ≤ TA ≤ 85 °C",
"source_page": 21,
"source": "datasheet"
},
{
"name": "Reference voltage (Bandgap)",
"symbol": "VREF",
"kind": "electrical",
"unit": "V",
"min": 1.28,
"typ": 1.3,
"max": 1.32,
"conditions": "VDD = 3.0 V to 5.25 V; trimmed for appropriate VDD",
"source_page": 21,
"source": "datasheet"
},
{
"name": "Reference voltage (Bandgap) at 2.4 V to 3.0 V",
"symbol": "VREF27",
"kind": "electrical",
"unit": "V",
"min": 1.16,
"typ": 1.3,
"max": 1.33,
"conditions": "VDD = 2.4 V to 3.0 V; trimmed for appropriate VDD",
"source_page": 21,
"source": "datasheet"
},
{
"name": "Pull-up resistor (5 V / 3.3 V)",
"symbol": "RPU",
"kind": "electrical",
"unit": "k",
"min": 4,
"typ": 5.6,
"max": 8,
"conditions": "",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Pull-down resistor (5 V / 3.3 V)",
"symbol": "RPD",
"kind": "electrical",
"unit": "k",
"min": 4,
"typ": 5.6,
"max": 8,
"conditions": "",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Low output level (5 V / 3.3 V)",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.75,
"conditions": "IOL = 25 mA, VDD = 4.75 to 5.25 V (8 total loads)",
"source_page": 22,
"source": "datasheet"
},
{
"name": "High level source current (5 V / 3.3 V)",
"symbol": "IOH",
"kind": "electrical",
"unit": "mA",
"min": 10,
"typ": null,
"max": null,
"conditions": "VOH = VDD – 1.0 V",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Low level sink current (5 V / 3.3 V)",
"symbol": "IOL",
"kind": "electrical",
"unit": "mA",
"min": 25,
"typ": null,
"max": null,
"conditions": "VOL = 0.75 V",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Input low level (5 V / 3.3 V)",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.8,
"conditions": "VDD = 3.0 to 5.25 V",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Input high level (5 V / 3.3 V)",
"symbol": "VIH",
"kind": "electrical",
"unit": "V",
"min": 2.1,
"typ": null,
"max": null,
"conditions": "VDD = 3.0 to 5.25 V",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Capacitive load on pins as input (5 V / 3.3 V)",
"symbol": "CIN",
"kind": "electrical",
"unit": "pF",
"min": null,
"typ": 3.5,
"max": 10,
"conditions": "Package and pin dependent; Temp = 25 °C",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Capacitive load on pins as output (5 V / 3.3 V)",
"symbol": "COUT",
"kind": "electrical",
"unit": "pF",
"min": null,
"typ": 3.5,
"max": 10,
"conditions": "Package and pin dependent; Temp = 25 °C",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Low output level (2.7 V)",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.75,
"conditions": "IOL = 10 mA, VDD = 2.4 to 3.0 V (90 mA maximum combined IOL budget)",
"source_page": 22,
"source": "datasheet"
},
{
"name": "High level source current (2.7 V)",
"symbol": "IOH",
"kind": "electrical",
"unit": "mA",
"min": 2.5,
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