component
ATTINY2313-20SU
Public Made by Adomby adom
Microchip Tech MICROCHIP, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "ATTINY2313-20SU",
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"mpn": "ATTINY2313-20SU",
"manufacturer": "Microchip Tech",
"package": "SOIC-20-300mil",
"pin_count": 20,
"category": "Embedded Processors & Controllers",
"subcategory": "MICROCHIP",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b65c5e6192cbaa70ba8431476a09cbcb.pdf",
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"model_3d_step_plain": "attiny2313-20su.step",
"lbr": "attiny2313-20su.lbr"
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"distributor_links": {
"lcsc": "C614918",
"digikey": "ATTINY2313-20SU-ND",
"mouser": "556-ATTINY2313-20SU"
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"distributor_check": {
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"source": "Component Ocean /api/assign-pns",
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"pins": [
{
"number": "1",
"name": "PA2",
"type": "bidirectional",
"description": "Port A bit 2 with internal pull-up, alternate function active-low RESET input (a low level longer than the minimum pulse length generates a reset, even if the clock is not running) and debugWIRE (dW)."
},
{
"number": "2",
"name": "PD0",
"type": "bidirectional",
"description": "Port D bit 0 with selectable internal pull-up, alternate function USART receive data (RXD); tri-stated during reset."
},
{
"number": "3",
"name": "PD1",
"type": "bidirectional",
"description": "Port D bit 1 with selectable internal pull-up, alternate function USART transmit data (TXD); tri-stated during reset."
},
{
"number": "4",
"name": "PA1",
"type": "bidirectional",
"description": "Port A bit 1 with internal pull-up, alternate function XTAL2, the output from the inverting oscillator amplifier."
},
{
"number": "5",
"name": "PA0",
"type": "bidirectional",
"description": "Port A bit 0 with internal pull-up, alternate function XTAL1, the input to the inverting oscillator amplifier and internal clock operating circuit."
},
{
"number": "6",
"name": "PD2",
"type": "bidirectional",
"description": "Port D bit 2 with selectable internal pull-up, alternate functions clock output (CKOUT), USART external clock (XCK) and external interrupt 0 (INT0)."
},
{
"number": "7",
"name": "PD3",
"type": "bidirectional",
"description": "Port D bit 3 with selectable internal pull-up, alternate function external interrupt 1 (INT1)."
},
{
"number": "8",
"name": "PD4",
"type": "bidirectional",
"description": "Port D bit 4 with selectable internal pull-up, alternate function Timer/Counter0 external clock input (T0)."
},
{
"number": "9",
"name": "PD5",
"type": "bidirectional",
"description": "Port D bit 5 with selectable internal pull-up, alternate functions Timer/Counter0 compare output B (OC0B) and Timer/Counter1 clock input (T1)."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "11",
"name": "PD6",
"type": "bidirectional",
"description": "Port D bit 6 with selectable internal pull-up, alternate function Timer/Counter1 input capture (ICP)."
},
{
"number": "12",
"name": "PB0",
"type": "bidirectional",
"description": "Port B bit 0 with selectable internal pull-up, alternate functions analog comparator positive input (AIN0) and pin change interrupt 0 (PCINT0)."
},
{
"number": "13",
"name": "PB1",
"type": "bidirectional",
"description": "Port B bit 1 with selectable internal pull-up, alternate functions analog comparator negative input (AIN1) and pin change interrupt 1 (PCINT1)."
},
{
"number": "14",
"name": "PB2",
"type": "bidirectional",
"description": "Port B bit 2 with selectable internal pull-up, alternate functions Timer/Counter0 compare output A (OC0A) and pin change interrupt 2 (PCINT2)."
},
{
"number": "15",
"name": "PB3",
"type": "bidirectional",
"description": "Port B bit 3 with selectable internal pull-up, alternate functions Timer/Counter1 compare output A (OC1A) and pin change interrupt 3 (PCINT3)."
},
{
"number": "16",
"name": "PB4",
"type": "bidirectional",
"description": "Port B bit 4 with selectable internal pull-up, alternate functions Timer/Counter1 compare output B (OC1B) and pin change interrupt 4 (PCINT4)."
},
{
"number": "17",
"name": "PB5",
"type": "bidirectional",
"description": "Port B bit 5 with selectable internal pull-up, alternate functions SPI programming data input (MOSI), USI data input (DI), USI TWI data (SDA) and pin change interrupt 5 (PCINT5)."
},
{
"number": "18",
"name": "PB6",
"type": "bidirectional",
"description": "Port B bit 6 with selectable internal pull-up, alternate functions SPI programming data output (MISO), USI data output (DO) and pin change interrupt 6 (PCINT6)."
},
{
"number": "19",
"name": "PB7",
"type": "bidirectional",
"description": "Port B bit 7 with selectable internal pull-up, alternate functions USI clock (UCSK), USI TWI clock (SCL) and pin change interrupt 7 (PCINT7)."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage, 2.7 - 5.5V for the ATtiny2313 (20 MHz grade at 4.5 - 5.5V)."
}
],
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"extractor": "extract_pins 0.3",
"factory_chain": {
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"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The 20S SOIC package drawing on page 13 has no extractable text. The pin numbering comes from the sh; PA2/RESET/dW is typed bidirectional because it is a Port A pin. RESET is an alternate function of th; Alternate-function descriptions for the port pins are taken from the pin names in Figure 1. The deta"
],
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"cost_usd": 0.1257,
"at": "2026-10-30T22:32:29"
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"datasheet": {
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"pages": 20,
"sha256": "58e0da31f6bd7b97",
"source_tier": "lcsc"
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"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 20,
"described": 20,
"cites_pages": true,
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"metadata": {
"specs": {
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"Package": "SOIC-20-300mil",
"Category": "Embedded Processors & Controllers",
"Pins": "20"
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"name": "Operating supply voltage",
"symbol": "VCC",
"kind": "recommended_operating",
"unit": "V",
"min": 2.7,
"typ": null,
"max": 5.5,
"conditions": "ATtiny2313 (non-V)",
"source_page": 1,
"source": "datasheet"
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{
"name": "Operating temperature range",
"symbol": "",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "Industrial",
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{
"name": "Clock frequency",
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{
"name": "EEPROM write voltage (Rev B erratum)",
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"unit": "V",
"min": 1.9,
"typ": null,
"max": null,
"conditions": "Do not write EEPROM below 1.9 V (Rev B)",
"source_page": 15,
"source": "datasheet"
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{
"name": "Flash write/erase endurance",
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"kind": "electrical",
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"min": null,
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"name": "Active mode current",
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"min": null,
"typ": 230,
"max": null,
"conditions": "1 MHz, 1.8V",
"source_page": 1,
"source": "datasheet"
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{
"name": "Power-down mode current",
"symbol": "",
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"min": null,
"typ": 0.1,
"max": null,
"conditions": "at 1.8V (printed as < 0.1)",
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