component
ATMEGA48PA-MUR
Public Made by Adomby adom
Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), VQFN-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": "atmega48pa-mur",
"title": "ATMEGA48PA-MUR",
"brief": "Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), VQFN-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",
"single chip microcomputer-microcontroller",
"atmega48pa-mur",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ATMEGA48PA-MUR",
"manufacturer": "Microchip Tech",
"package": "VQFN-32-EP(5x5)",
"pin_count": 33,
"category": "Single Chip Microcomputer/Microcontroller",
"subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
"datasheet": "https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/Atmel-9223-Automotive-Microcontrollers-ATmega48PA-ATmega88PA-ATmega168PA_Datasheet.pdf",
"parts": {
"symbol": "atmega48pa-mur.kicad_sym",
"footprint": "atmega48pa-mur.kicad_mod",
"model_3d": "atmega48pa-mur-hero.glb",
"model_3d_plain": "atmega48pa-mur-etched.glb",
"model_3d_step": "atmega48pa-mur-etched.step",
"model_3d_step_plain": "atmega48pa-mur.step",
"lbr": "atmega48pa-mur.lbr"
},
"distributor_links": {
"lcsc": "C2053027",
"digikey": "ATMEGA48PA-MURTR-ND",
"mouser": "556-ATMEGA48PA-MUR"
},
"distributor_check": {
"checked_at": "2026-10-29T02:20:41Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "ATMEGA48PA-MURTR-ND",
"status": "found"
},
"mouser": {
"pn": "556-ATMEGA48PA-MUR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "PD3",
"type": "bidirectional",
"description": "Port D bit 3 that can serve as external interrupt 1 input (INT1) or as the OC2B Timer/Counter2 compare output, which requires the pin to be configured as an output."
},
{
"number": "2",
"name": "PD4",
"type": "bidirectional",
"description": "Port D bit 4 that can serve as the USART external clock (XCK) or the Timer/Counter0 external counter input (T0)."
},
{
"number": "3",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "4",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage."
},
{
"number": "5",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "6",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage."
},
{
"number": "7",
"name": "PB6",
"type": "input",
"description": "Chip clock oscillator pin 1 (XTAL1) or timer oscillator pin 1 (TOSC1), which cannot be used as an I/O pin when used as a clock pin."
},
{
"number": "8",
"name": "PB7",
"type": "output",
"description": "Chip clock oscillator pin 2 (XTAL2) driven as the output of the inverting oscillator amplifier, which cannot be used as an I/O pin when used as a clock pin."
},
{
"number": "9",
"name": "PD5",
"type": "bidirectional",
"description": "Port D bit 5 that can serve as the Timer/Counter1 external counter input (T1) or as the OC0B Timer/Counter0 compare output, which requires the pin to be configured as an output."
},
{
"number": "10",
"name": "PD6",
"type": "bidirectional",
"description": "Port D bit 6 that can serve as the analog comparator positive input (AIN0) or as the OC0A Timer/Counter0 compare output, which requires the pin to be configured as an output."
},
{
"number": "11",
"name": "PD7",
"type": "bidirectional",
"description": "Port D bit 7 that serves as the analog comparator negative input (AIN1), for which the pin should be configured as input with the internal pull-up switched off."
},
{
"number": "12",
"name": "PB0",
"type": "bidirectional",
"description": "Port B bit 0 that can serve as the Timer/Counter1 input capture pin (ICP1) or as the divided system clock output (CLKO) when the CKOUT fuse is programmed."
},
{
"number": "13",
"name": "PB1",
"type": "bidirectional",
"description": "Port B bit 1 that serves as the Timer/Counter1 output compare match A output (OC1A), which requires the pin to be configured as an output."
},
{
"number": "14",
"name": "PB2",
"type": "bidirectional",
"description": "Port B bit 2 that serves as the SPI slave select input (SS) or as the Timer/Counter1 output compare match B output (OC1B), which requires the pin to be configured as an output."
},
{
"number": "15",
"name": "PB3",
"type": "bidirectional",
"description": "Port B bit 3 that serves as the SPI master output/slave input (MOSI) or as the Timer/Counter2 output compare match A output (OC2A), which requires the pin to be configured as an output."
},
{
"number": "16",
"name": "PB4",
"type": "bidirectional",
"description": "Port B bit 4 that serves as the SPI master input/slave output (MISO) pin."
},
{
"number": "17",
"name": "PB5",
"type": "bidirectional",
"description": "Port B bit 5 that serves as the SPI clock pin (SCK), an input when the SPI is a slave and controlled by DDB5 when the SPI is a master."
},
{
"number": "18",
"name": "AVCC",
"type": "power_in",
"description": "Supply voltage pin for the A/D converter, PC3:0 and ADC7:6, which should be connected to VCC even if the ADC is not used and through a low-pass filter if it is."
},
{
"number": "19",
"name": "ADC6",
"type": "passive",
"description": "Analog input channel 6 of the 10-bit A/D converter, powered from the analog supply (TQFP and QFN package only)."
},
{
"number": "20",
"name": "AREF",
"type": "input",
"description": "Analog reference pin for the A/D converter."
},
{
"number": "21",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "22",
"name": "ADC7",
"type": "passive",
"description": "Analog input channel 7 of the 10-bit A/D converter, powered from the analog supply (TQFP and QFN package only)."
},
{
"number": "23",
"name": "PC0",
"type": "bidirectional",
"description": "Port C bit 0 that can also serve as ADC input channel 0, which uses analog power, and as pin change interrupt source 8."
},
{
"number": "24",
"name": "PC1",
"type": "bidirectional",
"description": "Port C bit 1 that can also serve as ADC input channel 1, which uses analog power, and as pin change interrupt source 9."
},
{
"number": "25",
"name": "PC2",
"type": "bidirectional",
"description": "Port C bit 2 that can also serve as ADC input channel 2, which uses analog power, and as pin change interrupt source 10."
},
{
"number": "26",
"name": "PC3",
"type": "bidirectional",
"description": "Port C bit 3 that can also serve as ADC input channel 3, which uses analog power, and as pin change interrupt source 11."
},
{
"number": "27",
"name": "PC4",
"type": "bidirectional",
"description": "Port C bit 4 that serves as the 2-wire serial interface data I/O (SDA) when TWEN is set, and as ADC input channel 4 which uses digital power."
},
{
"number": "28",
"name": "PC5",
"type": "bidirectional",
"description": "Port C bit 5 that serves as the 2-wire serial interface clock I/O (SCL) when TWEN is set, and as ADC input channel 5 which uses digital power."
},
{
"number": "29",
"name": "PC6/RESET",
"type": "input",
"description": "Reset input when the RSTDISBL fuse is unprogrammed, where a low level longer than the minimum pulse length (Table 29-5) generates a reset; if the RSTDISBL fuse is programmed it functions as a normal I/O pin."
},
{
"number": "30",
"name": "PD0",
"type": "bidirectional",
"description": "Port D bit 0 that serves as the USART receive data input (RXD), configured as an input when the USART receiver is enabled."
},
{
"number": "31",
"name": "PD1",
"type": "bidirectional",
"description": "Port D bit 1 that serves as the USART transmit data output (TXD), configured as an output when the USART transmitter is enabled."
},
{
"number": "32",
"name": "PD2",
"type": "bidirectional",
"description": "Port D bit 2 that can serve as external interrupt source 0 (INT0) and as pin change interrupt source 18."
},
{
"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 MPN ATMEGA48PA-MUR does not appear in the datasheet text. The ordering table lists ATmega48PA-15; The exposed bottom pad is not given a pin number in the extracted text (Figure 1-1 only notes 'Botto; The Figure 1-1 pin labels were extracted out of order. Pin numbers were assigned from the figure's n",
"exposed pad 33 added from the footprint",
"12/33 pins cited to the wrong page (name found elsewhere): ['8:PB7 (PCINT7/XTAL2/TOSC2)@p71', '15:PB3 (PCINT3/OC2A/MOSI)@p72', '16:PB4 (PCINT4/MISO)@p72', '17:PB5 (PCINT5/SCK)@p72']"
],
"pages_sent": 61,
"cost_usd": 0.2642,
"at": "2026-10-29T02:20:22"
},
"datasheet": {
"url": "https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/Atmel-9223-Automotive-Microcontrollers-ATmega48PA-ATmega88PA-ATmega168PA_Datasheet.pdf",
"pages": 326,
"sha256": "626d81e6d4d566ae",
"source_tier": "mfr"
},
"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"
},
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
"checked": "2026-10-29",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "atmega48pa-mur-etched.step",
"role": "eda",
"up": "Z",
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"seat": "z = 0",
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"footprint_binding": "identity",
"sha256": "c9f7600ffbb5c8f0971cfc272fe30c3cea45be9436b3c7d3e11ed2c355c55aeb",
"checked": "2026-10-29",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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],
"package_dims": {
"package_code": "PN",
"source_page": 323,
"D": {
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"range_mm": [
null,
null
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},
"E1": {
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"range_mm": [
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"e": {
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},
"A": {
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"range_mm": [
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},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "atmega48pa-mur.step",
"verdict": "PASS",
"reasons": [
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"by": "factory/package_fit.py"
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},
"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "VQFN-32-EP(5x5)",
"Category": "Single Chip Microcomputer/Microcontroller",
"Pins": "33"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "626d81e6d4d566ae44c1fadf7039b6abab88dae03d71d44f35e0f57f9a53a205",
"rows": [
{
"name": "Operating temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 268,
"source": "datasheet"
},
{
"name": "Storage temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 268,
"source": "datasheet"
},
{
"name": "Voltage on any pin except RESET with respect to ground",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "",
"source_page": 268,
"source": "datasheet"
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{
"name": "Voltage on RESET with respect to ground",
"symbol": "",
"kind": "absolute_maximum",
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"min": -0.5,
"typ": null,
"max": 13,
"conditions": "",
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"source": "datasheet"
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{
"name": "Maximum operating voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 268,
"source": "datasheet"
},
{
"name": "DC current per I/O pin",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 268,
"source": "datasheet"
},
{
"name": "DC current VCC and GND pins",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 200,
"conditions": "",
"source_page": 268,
"source": "datasheet"
},
{
"name": "Input low voltage, except XTAL1 and RESET pin",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "VCC = 2.7V - 5.5V",
"source_page": 269,
"source": "datasheet"
},
{
"name": "Input low voltage, XTAL1 pin",
"symbol": "VIL1",
"kind": "electrical",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "VCC = 2.7V - 5.5V",
"source_page": 269,
"source": "datasheet"
},
{
"name": "Input low voltage, RESET pin",
"symbol": "VIL2",
"kind": "electrical",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "VCC = 2.7V - 5.5V",
"source_page": 269,
"source": "datasheet"
},
{
"name": "Output low voltage except RESET pin",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.8,
"conditions": "IOL = 20mA, VCC = 5V",
"source_page": 269,
"source": "datasheet"
},
{
"name": "Output low voltage except RESET pin",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.5,
"conditions": "IOL = 5mA, VCC = 3V",
"source_page": 269,
"source": "datasheet"
},
{
"name": "Output high voltage except reset pin",
"symbol": "VOH",
"kind": "electrical",
"unit": "V",
"min": 4.1,
"typ": null,
"max": null,
"conditions": "IOH = –20mA, VCC = 5V",
"source_page": 269,
"source": "datasheet"
},
{
"name": "Output high voltage except reset pin",
"symbol": "VOH",
"kind": "electrical",
"unit": "V",
"min": 2.3,
"typ": null,
"max": null,
"conditions": "IOH = –10mA, VCC = 3V",
"source_page": 269,
"source": "datasheet"
},
{
"name": "Input leakage current I/O pin (absolute value)",
"symbol": "IIL",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 1,
"conditions": "VCC = 5.5V, pin low",
"source_page": 269,
"source": "datasheet"
},
{
"name": "Reset Pull-up Resistor",
"symbol": "RRST",
"kind": "electrical",
"unit": "k",
"min": 30,
"typ": 60,
"max": null,
"conditions": "VCC = 5V, Vin = 0V",
"source_page": 269,
"source": "datasheet"
},
{
"name": "I/O pin pull-up resistor",
"symbol": "RPU",
"kind": "electrical",
"unit": "k",
"min": 20,
"typ": 50,
"max": null,
"conditions": "",
"source_page": 269,
"source": "datasheet"
},
{
"name": "Analog comparator input offset voltage",
"symbol": "VACIO",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": null,
"max": 40,
"conditions": "VCC = 5V, 0.1VCC < Vin < VCC - 100mV",
"source_page": 269,
"source": "datasheet"
},
{
"name": "Analog comparator input leakage current",
"symbol": "IACLK",
"kind": "electrical",
"unit": "nA",
"min": -50,
"typ": null,
"max": 50,
"conditions": "0.1VCC < Vin < VCC – 100mV",
"source_page": 269,
"source": "datasheet"
},
{
"name": "Analog comparator propagation delay",
"symbol": "tACID",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 140,
"conditions": "VCC = 4.5V",
"source_page": 269,
"source": "datasheet"
},
{
"name": "Power Supply Current Active 4MHz",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1.3,
"max": 2.4,
"conditions": "Active 4MHz, VCC = 3V",
"source_page": 270,
"source": "datasheet"
},
{
"name": "Power Supply Current Active 8MHz",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 4.6,
"max": 10,
"conditions": "Active 8MHz, VCC = 5V",
"source_page": 270,
"source": "datasheet"
},
{
"name": "Power Supply Current Active 16MHz",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 8.4,
"max": 16,
"conditions": "Active 16MHz, VCC = 5V",
"source_page": 270,
"source": "datasheet"
},
{
"name": "Power Supply Current Idle 4MHz",
"symbol": "ICC",
"kind": "electrical",
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