component
ATMEGA48P-20AU
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097
{
"schema_version": 1,
"type": "component",
"slug": "atmega48p-20au",
"title": "ATMEGA48P-20AU",
"brief": "Microchip Tech Pre-ordered MCUs, TQFP-32(7x7). 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",
"atmega48p-20au",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ATMEGA48P-20AU",
"manufacturer": "Microchip Tech",
"package": "TQFP-32(7x7)",
"pin_count": 32,
"category": "Embedded Processors & Controllers",
"subcategory": "Pre-ordered MCUs",
"datasheet": "https://ww1.microchip.com/downloads/en/DeviceDoc/ATmega48P_88P_168P-DS40002065A.pdf",
"parts": {
"symbol": "atmega48p-20au.kicad_sym",
"footprint": "atmega48p-20au.kicad_mod",
"model_3d": "atmega48p-20au-hero.glb",
"model_3d_plain": "atmega48p-20au-etched.glb",
"model_3d_step": "atmega48p-20au-etched.step",
"model_3d_step_plain": "atmega48p-20au.step",
"lbr": "atmega48p-20au.lbr"
},
"distributor_links": {
"lcsc": "C1339303",
"digikey": "ATMEGA48P-20AU-ND",
"mouser": "556-ATMEGA48P-20AU"
},
"distributor_check": {
"checked_at": "2026-10-30T22:11:43Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "ATMEGA48P-20AU-ND",
"status": "found"
},
"mouser": {
"pn": "556-ATMEGA48P-20AU",
"status": "found",
"lifecycle": "Not Recommended for New Designs"
}
},
"pins": [
{
"number": "1",
"name": "PD3",
"type": "bidirectional",
"description": "Port D bit 3 is a bi-directional I/O pin with internal pull-up that can serve as external interrupt INT1, OC2B output, or PCINT19 source, and must be configured as an output for OC2B."
},
{
"number": "2",
"name": "PD4",
"type": "bidirectional",
"description": "Port D bit 4 is a bi-directional I/O pin with internal pull-up that can serve as USART external clock XCK, Timer/Counter0 external counter input T0, or PCINT20 source."
},
{
"number": "3",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "4",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage; ATmega48P/88P/168P operates at 2.7 - 5.5V (ATmega48PV variant 1.8 - 5.5V)."
},
{
"number": "5",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "6",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage; ATmega48P/88P/168P operates at 2.7 - 5.5V (ATmega48PV variant 1.8 - 5.5V)."
},
{
"number": "7",
"name": "PB6",
"type": "bidirectional",
"description": "Port B bit 6 is the input to the inverting oscillator amplifier (XTAL1) or Timer Oscillator pin 1 depending on clock fuse settings; when used as a clock pin it cannot be used as I/O."
},
{
"number": "8",
"name": "PB7",
"type": "bidirectional",
"description": "Port B bit 7 is the output of the inverting oscillator amplifier (XTAL2) or Timer Oscillator pin 2 depending on clock fuse settings; when used as a clock pin it cannot be used as I/O."
},
{
"number": "9",
"name": "PD5",
"type": "bidirectional",
"description": "Port D bit 5 is a bi-directional I/O pin with internal pull-up that can serve as Timer/Counter1 external counter input T1, OC0B output, or PCINT21 source."
},
{
"number": "10",
"name": "PD6",
"type": "bidirectional",
"description": "Port D bit 6 is a bi-directional I/O pin that serves as Analog Comparator positive input AIN0 (pull-up should be switched off), OC0A output, or PCINT22 source."
},
{
"number": "11",
"name": "PD7",
"type": "bidirectional",
"description": "Port D bit 7 is a bi-directional I/O pin that serves as Analog Comparator negative input AIN1 (pull-up should be switched off) or PCINT23 source."
},
{
"number": "12",
"name": "PB0",
"type": "bidirectional",
"description": "Port B bit 0 is a bi-directional I/O pin that serves as Timer/Counter1 input capture ICP1, divided system clock output CLKO, or PCINT0 source."
},
{
"number": "13",
"name": "PB1 (OC1A/PCINT1)",
"type": "bidirectional",
"description": "Port B bit 1 is a bi-directional I/O pin that serves as Timer/Counter1 output compare match A output OC1A (must be configured as output) or PCINT1 source."
},
{
"number": "14",
"name": "PB2 (SS/OC1B/PCINT2)",
"type": "bidirectional",
"description": "Port B bit 2 is a bi-directional I/O pin that serves as SPI slave select SS, Timer/Counter1 output compare match B output OC1B (must be configured as output), or PCINT2 source."
},
{
"number": "15",
"name": "PB3 (MOSI/OC2A/PCINT3)",
"type": "bidirectional",
"description": "Port B bit 3 is a bi-directional I/O pin that serves as SPI MOSI, Timer/Counter2 output compare match A output OC2A (must be configured as output), or PCINT3 source."
},
{
"number": "16",
"name": "PB4 (MISO/PCINT4)",
"type": "bidirectional",
"description": "Port B bit 4 is a bi-directional I/O pin that serves as SPI MISO data pin or PCINT4 source."
},
{
"number": "17",
"name": "PB5 (SCK/PCINT5)",
"type": "bidirectional",
"description": "Port B bit 5 is a bi-directional I/O pin that serves as SPI clock SCK (input when SPI is slave) or PCINT5 source."
},
{
"number": "18",
"name": "AVCC",
"type": "power_in",
"description": "Supply voltage pin for the A/D converter, PC3:0 and ADC7:6; it should be externally connected to VCC even if the ADC is not used, and through a low-pass filter if the ADC is used."
},
{
"number": "19",
"name": "ADC6",
"type": "input",
"description": "ADC input channel 6 (TQFP and QFN/MLF package only), powered from the analog supply, serving as a 10-bit ADC channel."
},
{
"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": "input",
"description": "ADC input channel 7 (TQFP and QFN/MLF package only), powered from the analog supply, serving as a 10-bit ADC channel."
},
{
"number": "23",
"name": "PC0 (ADC0/PCINT8)",
"type": "bidirectional",
"description": "Port C bit 0 is a bi-directional I/O pin with internal pull-up that can serve as ADC input channel 0 (analog power) or PCINT8 source."
},
{
"number": "24",
"name": "PC1 (ADC1/PCINT9)",
"type": "bidirectional",
"description": "Port C bit 1 is a bi-directional I/O pin with internal pull-up that can serve as ADC input channel 1 (analog power) or PCINT9 source."
},
{
"number": "25",
"name": "PC2 (ADC2/PCINT10)",
"type": "bidirectional",
"description": "Port C bit 2 is a bi-directional I/O pin with internal pull-up that can serve as ADC input channel 2 (analog power) or PCINT10 source."
},
{
"number": "26",
"name": "PC3 (ADC3/PCINT11)",
"type": "bidirectional",
"description": "Port C bit 3 is a bi-directional I/O pin with internal pull-up that can serve as ADC input channel 3 (analog power) or PCINT11 source."
},
{
"number": "27",
"name": "PC4 (ADC4/SDA/PCINT12)",
"type": "bidirectional",
"description": "Port C bit 4 is a bi-directional I/O pin with internal pull-up that serves as 2-wire serial data SDA when TWEN is set, ADC input channel 4 (digital power), or PCINT12 source."
},
{
"number": "28",
"name": "PC5 (ADC5/SCL/PCINT13)",
"type": "bidirectional",
"description": "Port C bit 5 is a bi-directional I/O pin with internal pull-up that serves as 2-wire serial clock SCL when TWEN is set, ADC input channel 5 (digital power), or PCINT13 source."
},
{
"number": "29",
"name": "PC6 (RESET/PCINT14)",
"type": "input",
"description": "If RSTDISBL fuse is unprogrammed this pin is the Reset input and a low level longer than the minimum pulse length (Table 29-3) generates a reset; shorter pulses are not ensured to reset; if programmed it is I/O with electrical characteristics differing from other Port C pins."
},
{
"number": "30",
"name": "PD0 (RXD/PCINT16)",
"type": "bidirectional",
"description": "Port D bit 0 is a bi-directional I/O pin with internal pull-up that serves as USART receive data input RXD (input when USART receiver enabled) or PCINT16 source."
},
{
"number": "31",
"name": "PD1 (TXD/PCINT17)",
"type": "bidirectional",
"description": "Port D bit 1 is a bi-directional I/O pin that serves as USART transmit data output TXD (output when USART transmitter enabled) or PCINT17 source."
},
{
"number": "32",
"name": "PD2 (INT0/PCINT18)",
"type": "bidirectional",
"description": "Port D bit 2 is a bi-directional I/O pin with internal pull-up that serves as external interrupt source INT0 or PCINT18 source."
}
],
"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 pin-number-to-label assignment was reconstructed from the printed Figure 1-1 text, which is extr; Power and ground pins are listed as GND/VCC/AVCC in the figure without per-pin labels in the extract; PB6/PB7 are both oscillator pins and general I/O; they were typed bidirectional although the XTAL1 (",
"13/32 pins cited to the wrong page (name found elsewhere): ['8:PB7 (XTAL2/TOSC2/PCINT7)@p92', '12:PB0 (ICP1/CLKO/PCINT0)@p92', '15:PB3 (MOSI/OC2A/PCINT3)@p93', '16:PB4 (MISO/PCINT4)@p93']"
],
"pages_sent": 76,
"cost_usd": 0.2779,
"at": "2026-10-30T22:11:33"
},
"datasheet": {
"url": "https://ww1.microchip.com/downloads/en/DeviceDoc/ATmega48P_88P_168P-DS40002065A.pdf",
"pages": 436,
"sha256": "aab081a362918ab9",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 32,
"described": 32,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "atmega48p-20au.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
1.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "53431be61c684e9d923915676a90cb08050c23ee3f834d76a77a3b19b41422f1",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "atmega48p-20au-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
1.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "eb46ca091d91c663a213cf81f0cb14cfbbee95875c60cff6a1f0d5f8fec8605b",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "TQFP-32(7x7)",
"Category": "Embedded Processors & Controllers",
"Pins": "32"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "aab081a362918ab9013267cab3ee10a06ca2231f4c1ae48d3cdb329c0f95f524",
"rows": [
{
"name": "Storage temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 324,
"source": "datasheet"
},
{
"name": "Operating temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 324,
"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": 324,
"source": "datasheet"
},
{
"name": "Voltage on RESET with respect to Ground",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": 13,
"conditions": "",
"source_page": 324,
"source": "datasheet"
},
{
"name": "Maximum Operating Voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 324,
"source": "datasheet"
},
{
"name": "DC Current per I/O Pin",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 324,
"source": "datasheet"
},
{
"name": "DC Current VCC and GND Pins",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 200,
"conditions": "",
"source_page": 324,
"source": "datasheet"
},
{
"name": "Supply voltage (speed grade of ATmega48P-20AU)",
"symbol": "VCC",
"kind": "recommended_operating",
"unit": "V",
"min": 2.7,
"typ": null,
"max": 5.5,
"conditions": "Ordering code ATmega48P-20AU, 20 MHz grade",
"source_page": 418,
"source": "datasheet"
},
{
"name": "Speed (maximum frequency)",
"symbol": "",
"kind": "recommended_operating",
"unit": "MHz",
"min": null,
"typ": null,
"max": 20,
"conditions": "Speed grade 20 for ATmega48P-20AU; see Figure 29-1",
"source_page": 418,
"source": "datasheet"
},
{
"name": "Operating temperature range (Industrial)",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "Industrial operational range",
"source_page": 418,
"source": "datasheet"
},
{
"name": "Input Low Voltage, except XTAL1 and RESET pin",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "VCC = 2.4V - 5.5V",
"source_page": 324,
"source": "datasheet"
},
{
"name": "Input Low Voltage, XTAL1 pin",
"symbol": "VIL1",
"kind": "electrical",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "VCC = 1.8V - 5.5V",
"source_page": 324,
"source": "datasheet"
},
{
"name": "Input Low Voltage, RESET pin",
"symbol": "VIL2",
"kind": "electrical",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "VCC = 1.8V - 5.5V",
"source_page": 324,
"source": "datasheet"
},
{
"name": "Input Low Voltage, RESET pin as I/O",
"symbol": "VIL3",
"kind": "electrical",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "VCC = 2.4V - 5.5V",
"source_page": 324,
"source": "datasheet"
},
{
"name": "Output Low Voltage (except RESET pin)",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.9,
"conditions": "IOL = 20 mA, VCC = 5V",
"source_page": 324,
"source": "datasheet"
},
{
"name": "Output Low Voltage (except RESET pin)",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.6,
"conditions": "IOL = 10 mA, VCC = 3V",
"source_page": 324,
"source": "datasheet"
},
{
"name": "Output High Voltage (except Reset pin)",
"symbol": "VOH",
"kind": "electrical",
"unit": "V",
"min": 4.2,
"typ": null,
"max": null,
"conditions": "IOH = -20 mA, VCC = 5V",
"source_page": 324,
"source": "datasheet"
},
{
"name": "Output High Voltage (except Reset pin)",
"symbol": "VOH",
"kind": "electrical",
"unit": "V",
"min": 2.3,
"typ": null,
"max": null,
"conditions": "IOH = -10 mA, VCC = 3V",
"source_page": 324,
"source": "datasheet"
},
{
"name": "Input Leakage Current I/O Pin (low)",
"symbol": "IIL",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 1,
"conditions": "VCC = 5.5V, pin low (absolute value)",
"source_page": 324,
"source": "datasheet"
},
{
"name": "Input Leakage Current I/O Pin (high)",
"symbol": "IIH",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 1,
"conditions": "VCC = 5.5V, pin high (absolute value)",
"source_page": 324,
"source": "datasheet"
},
{
"name": "Power Supply Current, Active",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1.9,
"max": 2.5,
"conditions": "Active 4 MHz, VCC = 3V",
"source_page": 325,
"source": "datasheet"
},
{
"name": "Power Supply Current, Active",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 6.8,
"max": 9,
"conditions": "Active 8 MHz, VCC = 5V",
"source_page": 325,
"source": "datasheet"
},
{
"name": "Power Supply Current, Idle",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.4,
"max": 0.7,
"conditions": "Idle 4 MHz, VCC = 3V",
"source_page": 325,
"source": "datasheet"
},
{
"name": "Power Supply Current, Idle",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1.6,
"max": 2.7,
"conditions": "Idle 8 MHz, VCC = 5V",
"source_page": 325,
"source": "datasheet"
},
{
"name": "Power Supply Current, Power-save mode",
"symbol": "ICC",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.85,
"max": 2.6,
"conditions": "32 kHz TOSC enabled, VCC = 3V",
"source_page": 325,
"source": "datasheet"
},
{
"name": "Power Supply Current, Power-down mode",
"symbol": "ICC",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 4.2,
"max": 8,
"conditions": "WDT enabled, VCC = 3V",
"source_page": 325,
"source": "datasheet"
},
{
"name": "Power Supply Current, Power-down mode",
"symbol": "ICC",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.18,
"max": 2,
"conditions": "WDT disabled, VCC = 3V",
"source_page": 325,
"source": "datasheet"
},
{
"name": "Reset Pull-up Resistor",
"symbol": "RRST",
"kind": "electrical",
"unit": "kΩ",
"min": 30,
"typ": null,
"max": 60,
"conditions": "",
"source_page": 325,
"source": "datasheet"
},
{
"name": "I/O Pin Pull-up Resistor",
"symbol": "RPU",
"kind": "electrical",
"unit": "kΩ",
"min": 20,
"typ": null,
"max": 50,
"conditions": "",
"source_page": 325,
"source": "datasheet"
},
{
"name": "Analog Comparator Input Offset Voltage",
"symbol": "VACIO",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": null,
"max": 40,
"conditions": "VCC = 5V, Vin = VCC/2",
"source_page": 325,
"source": "datasheet"
},
{
"name": "Analog Comparator Input Leakage Current",
"symbol": "IACLK",
"kind": "electrical",
"unit": "nA",
"min": -50,
"typ": null,
"max": 50,
"conditions": "VCC = 5V, Vin = VCC/2",
"source_page": 325,
"source": "datasheet"
},
{
"name": "Analog Comparator Propagation Delay",
"symbol": "tACID",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 750,
"conditions": "VCC = 2.7V",
"source_page": 325,
"source": "datasheet"
},
{
"name": "Analog Comparator Propagation Delay",
"symbol": "tACID",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 500,
"conditions": "VCC = 4.0V",
"source_page": 325,
"source": "datasheet"
},
{
"name": "Calibrated Internal RC Oscillator accuracy (factory calibration)",
"symbol": "",
"kind": "tolerance",
"unit": "%",
"min": -10,
"typ": null,
"max": 10,
"conditions": "8.0 MHz, VCC = 3V, 25C",
"source_page": 329,
"source": "datasheet"
},
{
"name": "Calibrated Internal RC Oscillator accuracy (user calibration)",
"symbol": "",
"kind": "tolerance",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "User calibration, VCC = 2.7V - 5.5V, -40C - 85C",
"source_page": 329,
"source": "datasheet"
},
{
"name": "Calibrated Internal RC Oscillator frequency (user calibration)",
"symbol": "",
"kind": "electrical",
"unit": "MHz",
"min": 7.3,
"typ": null,
"max": 8.1,
"conditions": "User calibration, VCC = 2.7V - 5.5V, -40C - 85C",
"source_page": 329,
"source": "datasheet"
},
{
"name": "Oscillator Frequency (external clock)",
"symbol": "1/tCLCL",
"kind": "timing",
"unit": "MHz",
"min": 0,
"typ": null,
"max": 10,
"conditions": "VCC = 2.7-5.5V",
"source_page": 329,
"source": "datasheet"
},
{
"name": "Clock Period (external clock)",
"symbol": "tCLCL",
"kind": "timing",
"unit": "ns",
"min": 100,
"typ": null,
"max": null,
"conditions": "VCC = 2.7-5.5V",
"source_page": 329,
"source": "datasheet"
},
{
"name": "High Time (external clock)",
"symbol": "tCHCX",
"kind": "timing",
"unit": "ns",
"min": 40,
"typ": null,
"max": null,
"conditions": "VCC = 2.7-5.5V",
"source_page": 329,
"source": "datasheet"
},
{
"name": "Low Time (external clock)",
"symbol": "tCLCX",
"kind": "timing",
"unit": "ns",
"min": 40,
"typ": null,
"max": null,
"conditions": "VCC = 2.7-5.5V",
"source_page": 329,
"source": "datasheet"
},
{
"name": "Oscillator Frequency (external clock)",
"symbol": "1/tCLCL",
"kind": "timing",
"unit": "MHz",
"min": 0,
"typ": null,
"max": 20,
"conditions": "VCC = 4.5-5.5V",
"source_page": 329,
"source": "datasheet"
},
{
"name": "Clock Period (external clock)",
"symbol": "tCLCL",
"kind": "timing",
"unit": "ns",
"min": 50,
"typ": null,
"max": null,
"conditions": "VCC = 4.5-5.5V",
"source_page": 329,
"source": "datasheet"
},
{
"name": "High Time (external clock)",
"symbol": "tCHCX",
"kind": "timing",
"unit": "ns",
"min": 20,
"typ": null,
"max": null,
"conditions": "VCC = 4.5-5.5V",
"source_page": 329,
"source": "datasheet"
},
{
"name": "Low Time (external clock)",
"symbol": "tCLCX",
"kind": "timing",
"unit": "ns",
"min": 20,
"typ": null,
"max": null,
"conditions": "VCC = 4.5-5.5V",
"source_page": 329,
"source": "datasheet"
},
{
"name": "Power-on Reset Threshold Voltage (rising)",
"symbol": "VPOT",
"kind": "electrical",
"unit": "V",
"min": 1.1,
"typ": 1.4,
"max": 1.6,
"conditions": "",
"source_page": 330,
"source": "datasheet"
},
{
"name": "Power-on Reset Threshold Voltage (falling)",
"symbol": "VPOT",
"kind": "electrical",
"unit": "V",
"min": 0.6,
"typ": 1.3,
"max": 1.6,
"conditions": "",
"source_page": 330,
"source": "datasheet"
},
{
"name": "Power-on Slope Rate",
"symbol": "SRON",
"kind": "electrical",
"unit": "V/ms",
"min": 0.01,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 330,
"source": "datasheet"
},
{
"name": "Minimum pulse width on RESET Pin",
"symbol": "tRST",
"kind": "timing",
"unit": "µs",
"min": 2.5,
"typ": null,
"max": null,
"conditions": "",
"source_page": 330,
"source": "datasheet"
},
{
"name": "Min Pulse Width on Brown-out Reset",
"symbol": "tBOD",
"kind": "timing",
"unit": "µs",
"min": 2,
"typ": null,
"max": null,
"conditions": "",
"source_page": 330,
"source": "datasheet"
},
{
"name": "Bandgap reference voltage",
"symbol": "VBG",
"kind": "electrical",
"unit": "V",
"min": 1,
"typ": 1.1,
"max": 1.2,
"conditions": "VCC = 2.7, TA = 25°C",
"source_page": 330,
"source": "datasheet"
},
{
"name": "Brown-out Detector trigger level (BODLEVEL 110)",
"symbol": "VBOT",
"kind": "electrical",
"unit": "V",
"min": 1.7,
"typ": 1.8,
"max": 2,
"conditions": "BODLEVEL 2:0 = 110",
"source_page": 330,
"source": "datasheet"
},
{
"name": "Brown-out Detector trigger level (BODLEVEL 101)",
"symbol": "VBOT",
"kind": "electrical",
"unit": "V",
"min": 2.5,
"typ": 2.7,
"max": 2.9,
"conditions": "BODLEVEL 2:0 = 101",
"source_page": 330,
"source": "datasheet"
},
{
"name": "Brown-out Detector trigger level (BODLEVEL 100)",
"symbol": "VBOT",
"kind": "electrical",
"unit": "V",
"min": 4.1,
"typ": 4.3,
"max": 4.5,
"conditions": "BODLEVEL 2:0 = 100",
"source_page": 330,
"source": "datasheet"
},
{
"name": "Setup time (master)",
"symbol": "",
"kind": "timing",
"unit": "ns",
"min": 10,
"typ": null,
"max": null,
"conditions": "Master",
"source_page": 331,
"source": "datasheet"
},
{
"name": "Hold time (master)",
"symbol": "",
"kind": "timing",
"unit": "ns",
"min": 10,
"typ": null,
"max": null,
"conditions": "Master",
"source_page": 331,
"source": "datasheet"
},
{
"name": "SCK to out (master)",
"symbol": "",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 10,
"conditions": "Master",
"source_page": 331,
"source": "datasheet"
},
{
"name": "Setup time (slave)",
"symbol": "",
"kind": "timing",
"unit": "ns",
"min": 10,
"typ": null,
"max": null,
"conditions": "Slave",
"source_page": 331,
"source": "datasheet"
},
{
"name": "SCK to out (slave)",
"symbol": "",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 15,
"conditions": "Slave",
"source_page": 331,
"source": "datasheet"
},
{
"name": "SCL Clock Frequency",
"symbol": "fSCL",
"kind": "timing",
"unit": "kHz",
"min": 0,
"typ": null,
"max": 400,
"conditions": "fCK > max(16fSCL, 250kHz)",
"source_page": 333,
"source": "datasheet"
},
{
"name": "Output Low-voltage (2-wire)",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.4,
"conditions": "3 mA sink current",
"source_page": 333,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"atmega48p-20au"
],
"discovery_pitch": "ATMEGA48P-20AU (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"atmega48p-20au.kicad_sym",
"atmega48p-20au.kicad_mod",
"atmega48p-20au.glb",
"atmega48p-20au.step",
"atmega48p-20au.lbr",
"docs/hero.png",
"docs/atmega48p-20au-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"atmega48p-20au-hero.glb",
"atmega48p-20au-hero.overlay.json",
"atmega48p-20au-etched.glb"
],
"visibility": {
"public": true
}
}