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ATTINY13-20SQ

Public Made by Adom

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Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), SOIC-8-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentsingle chip microcomputer-microcontrollerattiny13-20sqfactory-2.0.0extractor-text

Verified ATTINY13-20SQ

by Ray · last 6 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

6 Nov 2026RayPublished by the parts factory: tier lcsc, 8 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: ATTINY13-20SQ · SOIC-8-208mil · 8 pins
  • ✓copper: 8 copper pads, none touching another net
  • ✓datasheet: all 8 pin names found in the 176-page datasheet
  • ✓distributor: lcsc C615524, digikey 2156-ATTINY13-20SQ-ND, mouser 556-ATTINY13-20SQ
  • ✓family: SOIC-8_5.3x5.3mm_P1.27mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-k4vlu6g6/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.162)
  • ✓pads: 8 pins = 8 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 8 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ attiny13-20sq.kicad_sym✓ attiny13-20sq.kicad_mod✓ attiny13-20sq.step
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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

markdown

ATTINY13-20SQ

Microchip Tech · Microcontroller Units (MCUs/MPUs/SOCs) · SOIC-8-208mil

ATTINY13-20SQ from Microchip Tech, in a SOIC-8-208mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 PB5 bidirectional Port B bit 5 with internal pull-up; it is also the RESET input, where a low level longer than the minimum pulse length generates a reset, and it can be used as a (weak) I/O pin.
2 PB3 bidirectional Port B bit 3 bidirectional I/O with selectable internal pull-up, also serving as CLKI and ADC3; Port B pins are tri-stated when reset is active, even if the clock is not running.
3 PB4 bidirectional Port B bit 4 bidirectional I/O with selectable internal pull-up, also serving as ADC2; Port B pins are tri-stated when reset is active, even if the clock is not running.
4 GND power_in Ground.
5 PB0 (MOSI/AIN0/OC0A/PCINT0) bidirectional Port B bit 0 bidirectional I/O with selectable internal pull-up and symmetrical high sink/source drive, also serving as MOSI, AIN0, OC0A and PCINT0.
6 PB1 (MISO/AIN1/OC0B/INT0/PCINT1) bidirectional Port B bit 1 bidirectional I/O with selectable internal pull-up and symmetrical high sink/source drive, also serving as MISO, AIN1, OC0B, INT0 and PCINT1.
7 PB2 (SCK/ADC1/T0/PCINT2) bidirectional Port B bit 2 bidirectional I/O with selectable internal pull-up and symmetrical high sink/source drive, also serving as SCK, ADC1, T0 and PCINT2.
8 VCC power_in Digital supply voltage; the ATtiny13 operates at 2.7 - 5.5V (ATtiny13V at 1.8 - 5.5V) per the features list.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-8-208mil
Category Single Chip Microcomputer/Microcontroller
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating Temperature -55 125 °C 115
Storage Temperature -65 150 °C 115
Voltage on any pin except RESET with respect to Ground -0.5 V with respect to Ground; max printed as VCC+0.5V 115
Voltage on RESET with respect to Ground -0.5 13 V with respect to Ground 115
Maximum Operating Voltage 6 V 115
DC Current per I/O Pin 40 mA 115
DC Current VCC and GND Pins 200 mA 115
Supply Voltage (ATtiny13 operating range) VCC 2.7 5.5 V ATtiny13 (not ATtiny13V) 1
Operating Temperature (industrial range) -40 85 °C TA = -40°C to +85°C 115
Input Low Voltage, Any Pin as I/O VIL -0.5 V VCC = 2.4V - 5.5V 115
Input Low Voltage, RESET Pin as Reset VIL -0.5 V VCC = 1.8V - 5.5V 115
Output Low Voltage, Pins PB0 and PB1 VOL 0.7 V IOL = 20 mA, VCC = 5V 115
Output Low Voltage, Pins PB0 and PB1 VOL 0.5 V IOL = 10 mA, VCC = 3V 115
Output Low Voltage, Pins PB2, PB3 and PB4 VOL 0.7 V IOL = 10 mA, VCC = 5V 115
Output Low Voltage, Pins PB2, PB3 and PB4 VOL 0.5 V IOL = 5 mA, VCC = 3V 115
Output High Voltage, Pins PB0 and PB1 VOH 4.2 V IOH = -20 mA, VCC = 5V 115
Output High Voltage, Pins PB0 and PB1 VOH 2.5 V IOH = -10 mA, VCC = 3V 115
Output High Voltage, Pins PB2, PB3 and PB4 VOH 4.2 V IOH = -10 mA, VCC = 5V 115
Output High Voltage, Pins PB2, PB3 and PB4 VOH 2.5 V IOH = -5 mA, VCC = 3V 115
Input Leakage Current I/O Pin (pin low) ILIL -1 1 µA VCC = 5.5V, pin low 115
Input Leakage Current I/O Pin (pin high) ILIH -1 1 µA VCC = 5.5V, pin high 115
Pull-Up Resistor, I/O Pin RPU 20 50 kΩ VCC = 5.5V, input low 115
Pull-Up Resistor, Reset Pin RPU 30 80 kΩ VCC = 5.5V, input low 115
Supply Current, Active Mode ICC 1.6 1.8 mA f = 4MHz, VCC = 3V 115
Supply Current, Active Mode ICC 5 6 mA f = 8MHz, VCC = 5V 115
Supply Current, Idle Mode ICC 0.41 1 mA f = 4MHz, VCC = 3V 115
Supply Current, Idle Mode ICC 1.6 3 mA f = 8MHz, VCC = 5V 115
Supply Current, Power-Down Mode ICC 5 10 µA WDT enabled, VCC = 3V 116
Supply Current, Power-Down Mode ICC 0.5 2 µA WDT disabled, VCC = 3V 116
Clock Frequency 1/tCLCL 0 10 MHz VCC = 2.7 - 5.5V 118
Clock Frequency 1/tCLCL 0 20 MHz VCC = 4.5 - 5.5V 118
Clock Period tCLCL 100 ns VCC = 2.7 - 5.5V 118
Clock Period tCLCL 50 ns VCC = 4.5 - 5.5V 118
High Time tCHCX 40 ns VCC = 2.7 - 5.5V 118
High Time tCHCX 20 ns VCC = 4.5 - 5.5V 118
Low Time tCLCX 40 ns VCC = 2.7 - 5.5V 118
Low Time tCLCX 20 ns VCC = 4.5 - 5.5V 118
Rise Time tCLCH 1.6 µs VCC = 2.7 - 5.5V 118
Rise Time tCLCH 0.5 µs VCC = 4.5 - 5.5V 118
Fall Time tCHCL 1.6 µs VCC = 2.7 - 5.5V 118
Fall Time tCHCL 0.5 µs VCC = 4.5 - 5.5V 118
Bandgap reference voltage VBG 1 1.1 1.2 V 119
Input Offset Voltage VAIO 40 mV VCC = 5V, VIN = VCC / 2 119
Input Leakage Current ILAC -50 50 nA VCC = 5V, VIN = VCC / 2 119
Analog Propagation Delay (from saturation to slight overdrive) tAPD 750 ns VCC = 2.7V 119
Analog Propagation Delay (from saturation to slight overdrive) tAPD 500 ns VCC = 4.0V 119
Absolute accuracy (including INL, DNL, quantization, gain and offset errors) 2 LSB VREF = 4V, VCC = 4V, ADC clock = 200 kHz 120
Integral Non-Linearity (INL) 1 LSB VREF = 4V, VCC = 4V, ADC clock = 200 kHz 120
Differential Non-linearity (DNL) 0.5 LSB VREF = 4V, VCC = 4V, ADC clock = 200 kHz 120
Gain Error 2.5 LSB VREF = 4V, VCC = 4V, ADC clock = 200 kHz 120
Internal Voltage Reference VINT 1 1.1 1.2 V 120
Oscillator Frequency (serial programming) 1/tCLCL 0 9.6 MHz ATtiny13, VCC = 2.7 - 5.5V 121
Oscillator Period (serial programming) tCLCL 104 ns ATtiny13, VCC = 2.7 - 5.5V 121
Oscillator Frequency (serial programming) 1/tCLCL 0 20 MHz ATtiny13, VCC = 4.5V - 5.5V 121
Oscillator Period (serial programming) tCLCL 50 ns ATtiny13, VCC = 4.5V - 5.5V 121
SCI (PB3) Pulse Width High tSHSL 110 ns TA = 25°C, VCC = 5.0V ± 10% 122
SCI (PB3) Pulse Width Low tSLSH 110 ns TA = 25°C, VCC = 5.0V ± 10% 122
SDI (PB0), SII (PB1) Valid to SCI (PB3) High tIVSH 50 ns TA = 25°C, VCC = 5.0V ± 10% 122
SDI (PB0), SII (PB1) Hold after SCI (PB3) High tSHIX 50 ns TA = 25°C, VCC = 5.0V ± 10% 122
SCI (PB3) High to SDO (PB2) Valid tSHOV 16 ns TA = 25°C, VCC = 5.0V ± 10% 122

CAD (KiCad official)

  • Symbol: ATTINY13-20SQ
  • Footprint: Package_SO:SOIC-8_5.3x5.3mm_P1.27mm
  • 3D model: SOIC-8-208mil (KiCad packages3D, STEP)
  • 3D model files: attiny13-20sq-etched.step / attiny13-20sq-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); attiny13-20sq.step / attiny13-20sq.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Microchip Tech datasheet (176 pp, sha256 40026c140811adb0, retrieved 2026-11-06, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF