component
ATXMEGA32A4-AU
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, TQFP-44(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "ATXMEGA32A4-AU",
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"manufacturer": "Microchip Tech",
"package": "TQFP-44(10x10)",
"pin_count": 44,
"category": "Embedded Processors & Controllers",
"subcategory": "Pre-ordered MCUs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b435da39f360c79f99492fe453e47893.pdf",
"parts": {
"symbol": "atxmega32a4-au.kicad_sym",
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"distributor_links": {
"lcsc": "C1337691",
"digikey": "ATXMEGA32A4-AU-ND",
"mouser": "556-ATXMEGA32A4-AU"
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"checked_at": "2026-10-31T10:13:01Z",
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"status": "found",
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},
"pins": [
{
"number": "1",
"name": "PA5",
"type": "bidirectional",
"description": "Port A bit 5 I/O with synchronous pin-change interrupt; alternate functions are ADC5 and AC5 analog inputs."
},
{
"number": "2",
"name": "PA6",
"type": "bidirectional",
"description": "Port A bit 6 I/O with synchronous pin-change interrupt; alternate functions are ADC6 and AC6 analog inputs."
},
{
"number": "3",
"name": "PA7",
"type": "bidirectional",
"description": "Port A bit 7 I/O with synchronous pin-change interrupt; alternate functions are ADC7 input and the AC0 output (AC0OUT)."
},
{
"number": "4",
"name": "PB0",
"type": "bidirectional",
"description": "Port B bit 0 I/O with synchronous pin-change interrupt; alternate functions are ADC8 input and the AREF reference input."
},
{
"number": "5",
"name": "PB1",
"type": "bidirectional",
"description": "Port B bit 1 I/O with synchronous pin-change interrupt; alternate function is ADC9 analog input."
},
{
"number": "6",
"name": "PB2",
"type": "bidirectional",
"description": "Port B bit 2 I/O with synchronous/asynchronous pin-change interrupt; alternate functions are ADC10 input and DAC0 output."
},
{
"number": "7",
"name": "PB3",
"type": "bidirectional",
"description": "Port B bit 3 I/O with synchronous pin-change interrupt; alternate functions are ADC11 input and DAC1 output."
},
{
"number": "8",
"name": "GND",
"type": "power_in",
"description": "Ground pin; the datasheet's absolute maximum DC current rating for the VCC and GND pins is 200.0 mA."
},
{
"number": "9",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage; the device operating range is 1.6 - 3.6 V with a maximum operating voltage of 3.6 V."
},
{
"number": "10",
"name": "PC0",
"type": "bidirectional",
"description": "Port C bit 0 I/O with synchronous pin-change interrupt; alternate functions are TCC0 OC0A, AWEXC OC0ALS and TWIC SDA."
},
{
"number": "11",
"name": "PC1",
"type": "bidirectional",
"description": "Port C bit 1 I/O with synchronous pin-change interrupt; alternate functions are TCC0 OC0B, AWEXC OC0AHS, USARTC0 XCK0 and TWIC SCL."
},
{
"number": "12",
"name": "PC2",
"type": "bidirectional",
"description": "Port C bit 2 I/O with synchronous/asynchronous pin-change interrupt; alternate functions are TCC0 OC0C, AWEXC OC0BLS and USARTC0 RXD0."
},
{
"number": "13",
"name": "PC3",
"type": "bidirectional",
"description": "Port C bit 3 I/O with synchronous pin-change interrupt; alternate functions are TCC0 OC0D, AWEXC OC0BHS and USARTC0 TXD0."
},
{
"number": "14",
"name": "PC4",
"type": "bidirectional",
"description": "Port C bit 4 I/O with synchronous pin-change interrupt; alternate functions are AWEXC OC0CLS, TCC1 OC1A and SPI SS."
},
{
"number": "15",
"name": "PC5",
"type": "bidirectional",
"description": "Port C bit 5 I/O with synchronous pin-change interrupt; alternate functions are AWEXC OC0CHS, TCC1 OC1B, USARTC1 XCK1 and SPI MOSI."
},
{
"number": "16",
"name": "PC6",
"type": "bidirectional",
"description": "Port C bit 6 I/O with synchronous pin-change interrupt; alternate functions are AWEXC OC0DLS, USARTC1 RXD1 and SPI MISO."
},
{
"number": "17",
"name": "PC7",
"type": "bidirectional",
"description": "Port C bit 7 I/O with synchronous pin-change interrupt; alternate functions are AWEXC OC0DHS, USARTC1 TXD1, SPI SCK, CLKOUT and EVENTOUT."
},
{
"number": "18",
"name": "GND",
"type": "power_in",
"description": "Ground pin; the datasheet's absolute maximum DC current rating for the VCC and GND pins is 200.0 mA."
},
{
"number": "19",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage; the device operating range is 1.6 - 3.6 V with a maximum operating voltage of 3.6 V."
},
{
"number": "20",
"name": "PD0",
"type": "bidirectional",
"description": "Port D bit 0 I/O with synchronous pin-change interrupt; alternate function is TCD0 OC0A."
},
{
"number": "21",
"name": "PD1",
"type": "bidirectional",
"description": "Port D bit 1 I/O with synchronous pin-change interrupt; alternate functions are TCD0 OC0B and USARTD0 XCK0."
},
{
"number": "22",
"name": "PD2",
"type": "bidirectional",
"description": "Port D bit 2 I/O with synchronous/asynchronous pin-change interrupt; alternate functions are TCD0 OC0C and USARTD0 RXD0."
},
{
"number": "23",
"name": "PD3",
"type": "bidirectional",
"description": "Port D bit 3 I/O with synchronous pin-change interrupt; alternate functions are TCD0 OC0D and USARTD0 TXD0."
},
{
"number": "24",
"name": "PD4",
"type": "bidirectional",
"description": "Port D bit 4 I/O with synchronous pin-change interrupt; alternate functions are TCD1 OC1A and SPID SS."
},
{
"number": "25",
"name": "PD5",
"type": "bidirectional",
"description": "Port D bit 5 I/O with synchronous pin-change interrupt; alternate functions are TCD1 OC1B, USARTD1 XCK1 and SPID MOSI."
},
{
"number": "26",
"name": "PD6",
"type": "bidirectional",
"description": "Port D bit 6 I/O with synchronous pin-change interrupt; alternate functions are USARTD1 RXD1 and SPID MISO."
},
{
"number": "27",
"name": "PD7",
"type": "bidirectional",
"description": "Port D bit 7 I/O with synchronous pin-change interrupt; alternate functions are USARTD1 TXD1, SPID SCK, CLKOUT and EVENTOUT."
},
{
"number": "28",
"name": "PE0",
"type": "bidirectional",
"description": "Port E bit 0 I/O with synchronous pin-change interrupt; alternate functions are TCE0 OC0A and TWIE SDA."
},
{
"number": "29",
"name": "PE1",
"type": "bidirectional",
"description": "Port E bit 1 I/O with synchronous pin-change interrupt; alternate functions are TCE0 OC0B, USARTE0 XCK0 and TWIE SCL."
},
{
"number": "30",
"name": "GND",
"type": "power_in",
"description": "Ground pin; the datasheet's absolute maximum DC current rating for the VCC and GND pins is 200.0 mA."
},
{
"number": "31",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage; the device operating range is 1.6 - 3.6 V with a maximum operating voltage of 3.6 V."
},
{
"number": "32",
"name": "PE2",
"type": "bidirectional",
"description": "Port E bit 2 I/O with synchronous/asynchronous pin-change interrupt; alternate functions are TCE0 OC0C and USARTE0 RXD0."
},
{
"number": "33",
"name": "PE3",
"type": "bidirectional",
"description": "Port E bit 3 I/O with synchronous pin-change interrupt; alternate functions are TCE0 OC0D and USARTE0 TXD0."
},
{
"number": "34",
"name": "PDI",
"type": "bidirectional",
"description": "PDI_DATA pin of the 2-pin Atmel Program and Debug Interface, used for programming Flash, EEPROM, fuses and lock bits and for debugging."
},
{
"number": "35",
"name": "RESET",
"type": "input",
"description": "Reset pin, which also serves as PDI_CLK for the Program and Debug Interface."
},
{
"number": "36",
"name": "PR0",
"type": "bidirectional",
"description": "Port R bit 0 with alternate functions XTAL2 (inverting oscillator pin) and TOSC2 (timer oscillator pin)."
},
{
"number": "37",
"name": "PR1",
"type": "bidirectional",
"description": "Port R bit 1 with alternate functions XTAL1 (inverting oscillator pin) and TOSC1 (timer oscillator pin)."
},
{
"number": "38",
"name": "GND",
"type": "power_in",
"description": "Ground pin; the datasheet's absolute maximum DC current rating for the VCC and GND pins is 200.0 mA."
},
{
"number": "39",
"name": "AVCC",
"type": "power_in",
"description": "Analog supply voltage pin; the device operating voltage range is 1.6 - 3.6 V."
},
{
"number": "40",
"name": "PA0",
"type": "bidirectional",
"description": "Port A bit 0 I/O with synchronous pin-change interrupt; alternate functions are ADC0 input, AC0 input and the AREF reference input."
},
{
"number": "41",
"name": "PA1",
"type": "bidirectional",
"description": "Port A bit 1 I/O with synchronous pin-change interrupt; alternate functions are ADC1 and AC1 analog inputs."
},
{
"number": "42",
"name": "PA2",
"type": "bidirectional",
"description": "Port A bit 2 I/O with synchronous/asynchronous pin-change interrupt; alternate functions are ADC2 and AC2 analog inputs."
},
{
"number": "43",
"name": "PA3",
"type": "bidirectional",
"description": "Port A bit 3 I/O with synchronous pin-change interrupt; alternate functions are ADC3 and AC3 analog inputs."
},
{
"number": "44",
"name": "PA4",
"type": "bidirectional",
"description": "Port A bit 4 I/O with synchronous pin-change interrupt; alternate functions are ADC4 and AC4 analog inputs."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
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"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
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"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Figure 2-1 (TQFP/QFN pinout, page 3) is garbled in the extracted text, so the pin-number-to-name map; Pins 34 and 35 are labelled 'RESET/PDI' in Figure 2-1 but are listed separately in Table 30-6 as PDI; The datasheet gives no per-pin electrical limits. Voltage and current limits in the descriptions are"
],
"pages_sent": 41,
"cost_usd": 0.1573,
"at": "2026-10-31T10:12:50"
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"described": 44,
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"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "TQFP-44(10x10)",
"Category": "Embedded Processors & Controllers",
"Pins": "44"
},
"characteristics": {
"version": 1,
"source": "datasheet",
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{
"name": "Power-save supply current, RTC 1 kHz from 32 kHz TOSC",
"symbol": "ICC",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.5,
"max": 4,
"conditions": "Power-save, RTC 1 kHz from Low Power 32 kHz TOSC, T = 25°C, VCC = 1.8V",
"source_page": 62,
"source": "datasheet"
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{
"name": "Power-save supply current, RTC 1 kHz from 32 kHz TOSC",
"symbol": "ICC",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.7,
"max": 4,
"conditions": "Power-save, RTC 1 kHz from Low Power 32 kHz TOSC, T = 25°C, VCC = 3.0V",
"source_page": 62,
"source": "datasheet"
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{
"name": "CPU clock frequency",
"symbol": "ClkCPU",
"kind": "recommended_operating",
"unit": "MHz",
"min": 0,
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"max": 12,
"conditions": "VCC = 1.6V",
"source_page": 63,
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"min": 0,
"typ": null,
"max": 32,
"conditions": "VCC = 2.7V",
"source_page": 63,
"source": "datasheet"
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{
"name": "ADC integral non-linearity",
"symbol": "INL",
"kind": "electrical",
"unit": "LSB",
"min": -5,
"typ": 2,
"max": 5,
"conditions": "500 ksps",
"source_page": 65,
"source": "datasheet"
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{
"name": "ADC differential non-linearity",
"symbol": "DNL",
"kind": "electrical",
"unit": "",
"min": -1,
"typ": null,
"max": 1,
"conditions": "500 ksps",
"source_page": 65,
"source": "datasheet"
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{
"name": "ADC gain error",
"symbol": "",
"kind": "electrical",
"unit": "mV",
"min": -10,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 65,
"source": "datasheet"
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{
"name": "ADC offset error",
"symbol": "",
"kind": "electrical",
"unit": "mV",
"min": -2,
"typ": null,
"max": 2,
"conditions": "",
"source_page": 65,
"source": "datasheet"
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{
"name": "ADC clock frequency",
"symbol": "ADCclk",
"kind": "electrical",
"unit": "kHz",
"min": null,
"typ": null,
"max": 2000,
"conditions": "Max is 1/4 of Peripheral Clock",
"source_page": 65,
"source": "datasheet"
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{
"name": "ADC reference voltage",
"symbol": "VREF",
"kind": "electrical",
"unit": "V",
"min": 1,
"typ": null,
"max": null,
"conditions": "",
"source_page": 65,
"source": "datasheet"
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{
"name": "ADC reference input resistance",
"symbol": "RAREF",
"kind": "electrical",
"unit": "M",
"min": 10,
"typ": null,
"max": null,
"conditions": "",
"source_page": 65,
"source": "datasheet"
},
{
"name": "ADC gain stage gain error",
"symbol": "",
"kind": "electrical",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "1 to 64 gain",
"source_page": 65,
"source": "datasheet"
},
{
"name": "ADC gain stage offset error",
"symbol": "",
"kind": "electrical",
"unit": "mV",
"min": -1,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 65,
"source": "datasheet"
},
{
"name": "DAC integral non-linearity",
"symbol": "INL",
"kind": "electrical",
"unit": "LSB",
"min": -5,
"typ": null,
"max": 5,
"conditions": "VCC = 1.6-3.6V VREF = Ext. ref",
"source_page": 66,
"source": "datasheet"
},
{
"name": "DAC differential non-linearity",
"symbol": "DNL",
"kind": "electrical",
"unit": "LSB",
"min": -1,
"typ": null,
"max": 1,
"conditions": "VCC = 1.6-3.6V VREF = Ext. ref",
"source_page": 66,
"source": "datasheet"
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{
"name": "DAC minimum output voltage",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.03,
"conditions": "Rload = 100k",
"source_page": 66,
"source": "datasheet"
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{
"name": "DAC external reference voltage",
"symbol": "AREF",
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"unit": "V",
"min": 1.1,
"typ": null,
"max": null,
"conditions": "",
"source_page": 66,
"source": "datasheet"
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{
"name": "DAC offset factory calibration accuracy",
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"kind": "electrical",
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"min": -0.5,
"typ": null,
"max": 0.5,
"conditions": "Continues mode, VCC = 3.0V, VREF = Int 1.00V, T = 85°C",
"source_page": 66,
"source": "datasheet"
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{
"name": "Analog comparator input offset voltage",
"symbol": "Voff",
"kind": "electrical",
"unit": "mV",
"min": -10,
"typ": null,
"max": 10,
"conditions": "VCC = 1.6 - 3.6V",
"source_page": 66,
"source": "datasheet"
},
{
"name": "Analog comparator input leakage current",
"symbol": "Ilk",
"kind": "electrical",
"unit": "pA",
"min": null,
"typ": null,
"max": 1000,
"conditions": "VCC = 1.6 - 3.6V",
"source_page": 66,
"source": "datasheet"
},
{
"name": "Bandgap voltage, ADC/DAC reference",
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"kind": "electrical",
"unit": "V",
"min": 0.99,
"typ": 1,
"max": 1.01,
"conditions": "T = 85°C, After calibration",
"source_page": 66,
"source": "datasheet"
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{
"name": "Bandgap variation over voltage and temperature",
"symbol": "",
"kind": "electrical",
"unit": "%",
"min": -2,
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