component
ATTINY461-20SU
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"manufacturer": "Microchip Tech",
"package": "SOIC-20-300mil",
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"category": "Embedded Processors & Controllers",
"subcategory": "Pre-ordered MCUs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/255dc0ae55c87a0c618c0929fbb4b52d.pdf",
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"digikey": "ATTINY461-20SU-ND",
"mouser": "556-ATTINY461-20SU"
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"pins": [
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"number": "1",
"name": "PB0",
"type": "bidirectional",
"description": "Port B bit 0, bi-directional I/O with selectable pull-up; alternate functions MOSI/DI/SDA (USI data input), OC1A and PCINT8."
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{
"number": "2",
"name": "PB1",
"type": "bidirectional",
"description": "Port B bit 1, bi-directional I/O with selectable pull-up; alternate functions MISO/DO (USI data output), OC1A and PCINT9."
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{
"number": "3",
"name": "PB2",
"type": "bidirectional",
"description": "Port B bit 2, bi-directional I/O with selectable pull-up; alternate functions SCK/USCK/SCL (USI clock), OC1B and PCINT10."
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{
"number": "4",
"name": "PB3",
"type": "bidirectional",
"description": "Port B bit 3, bi-directional I/O with selectable pull-up; alternate functions OC1B and PCINT11."
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{
"number": "5",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage (2.7-5.5V for ATtiny461, 1.8-5.5V for ATtiny461V)."
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{
"number": "6",
"name": "GND",
"type": "power_in",
"description": "Ground."
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{
"number": "7",
"name": "PB4",
"type": "bidirectional",
"description": "Port B bit 4, bi-directional I/O with selectable pull-up; alternate functions XTAL1/CLKI (chip clock oscillator input), OC1D, ADC7 and PCINT12."
},
{
"number": "8",
"name": "PB5",
"type": "bidirectional",
"description": "Port B bit 5, bi-directional I/O with selectable pull-up; alternate functions XTAL2/CLKO (crystal oscillator output, system clock output), OC1D, ADC8 and PCINT13."
},
{
"number": "9",
"name": "PB6",
"type": "bidirectional",
"description": "Port B bit 6, bi-directional I/O with selectable pull-up; alternate functions ADC9, T0, INT0 and PCINT14."
},
{
"number": "10",
"name": "PB7",
"type": "bidirectional",
"description": "Port B bit 7 / RESET: active-low reset input (pulse longer than the minimum length generates a reset) that can be used as a weak I/O pin when RSTDISBL fuse is programmed; also debugWIRE I/O, ADC10 and PCINT15."
},
{
"number": "11",
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"description": "Port A bit 7, bi-directional I/O with selectable pull-up; alternate functions ADC6, AIN1 and PCINT7."
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{
"number": "12",
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"type": "bidirectional",
"description": "Port A bit 6, bi-directional I/O with selectable pull-up; alternate functions ADC5, AIN0 and PCINT6."
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{
"number": "13",
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"type": "bidirectional",
"description": "Port A bit 5, bi-directional I/O with selectable pull-up; alternate functions ADC4, AIN2 and PCINT5."
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{
"number": "14",
"name": "PA4",
"type": "bidirectional",
"description": "Port A bit 4, bi-directional I/O with selectable pull-up; alternate functions ADC3, ICP0 and PCINT4."
},
{
"number": "15",
"name": "AVCC",
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"description": "Analog supply for the ADC, analog comparator, BOD, internal voltage reference and Port A; must be connected to VCC even if the ADC is unused, through a low-pass filter if the ADC is used."
},
{
"number": "16",
"name": "AGND",
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"description": "Analog ground."
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{
"number": "17",
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"type": "bidirectional",
"description": "Port A bit 3, bi-directional I/O with selectable pull-up; alternate functions AREF (ADC reference) and PCINT3."
},
{
"number": "18",
"name": "PA2",
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"description": "Port A bit 2, bi-directional I/O with selectable pull-up; alternate functions ADC2, INT1, USCK/SCL (USI clock, when USIPOS set) and PCINT2."
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{
"number": "19",
"name": "PA1",
"type": "bidirectional",
"description": "Port A bit 1, bi-directional I/O with selectable pull-up; alternate functions ADC1, DO (USI data output, when USIPOS set) and PCINT1."
},
{
"number": "20",
"name": "PA0",
"type": "bidirectional",
"description": "Port A bit 0, bi-directional I/O with selectable pull-up; alternate functions ADC0, DI/SDA (USI data input, when USIPOS set) and PCINT0."
}
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],
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{
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{
"name": "Input Low-voltage, XTAL1",
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{
"name": "Input Low-voltage, RESET",
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{
"name": "Input Low-voltage, RESET as I/O",
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{
"name": "Input High-voltage, except XTAL1 and RESET",
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"source": "datasheet"
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{
"name": "Input High-voltage, XTAL1",
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"source": "datasheet"
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{
"name": "Input High-voltage, RESET",
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{
"name": "Input High-voltage, RESET as I/O",
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"source": "datasheet"
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{
"name": "Output Low Voltage (IOL=10mA)",
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"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.6,
"conditions": "IOL = 10 mA, VCC = 5V",
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"source": "datasheet"
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{
"name": "Output Low Voltage (IOL=5mA)",
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"kind": "electrical",
"unit": "V",
"min": null,
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"conditions": "IOL = 5 mA, VCC = 3V",
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{
"name": "Output High-voltage (IOH=-10mA)",
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"conditions": "IOH = -10 mA, VCC = 5V",
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"source": "datasheet"
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{
"name": "Output High-voltage (IOH=-5mA)",
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"conditions": "IOH = -5 mA, VCC = 3V",
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"source": "datasheet"
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"name": "Input Leakage Current I/O Pin, pin low",
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"source": "datasheet"
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{
"name": "Input Leakage Current I/O Pin, pin high",
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"conditions": "Vcc = 5.5V, pin high (absolute value)",
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"source": "datasheet"
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{
"name": "Reset Pull-up Resistor",
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"min": 30,
"typ": null,
"max": 60,
"conditions": "",
"source_page": 187,
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{
"name": "I/O Pin Pull-up Resistor",
"symbol": "RPU",
"kind": "electrical",
"unit": "kΩ",
"min": 20,
"typ": null,
"max": 50,
"conditions": "",
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{
"name": "Power Supply Current Active 1MHz",
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"min": null,
"typ": 0.4,
"max": 0.6,
"conditions": "Active 1MHz, VCC = 2V",
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{
"name": "Power Supply Current Active 4MHz",
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{
"name": "Power Supply Current Active 8MHz",
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"typ": 6,
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"name": "Power Supply Current Idle 1MHz",
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"source": "datasheet"
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{
"name": "Power Supply Current Idle 4MHz",
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{
"name": "Power Supply Current Idle 8MHz",
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{
"name": "Power-down current, WDT enabled",
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{
"name": "Power-down current, WDT disabled",
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"source": "datasheet"
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{
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