component

ATTINY1634-SU

Public Made by Adom

by adom

Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentsingle chip microcomputer-microcontrollerattiny1634-sufactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 12h ago
viewers attiny1634-su: viewers · Ray 12h ago
attiny1634-su-etched.glb Publish 0.1.0 · Ray 12h ago
attiny1634-su-etched.step attiny1634-su: factory component page (tier=mfr) · Ray 12h ago
attiny1634-su-hero.glb attiny1634-su: hero GLB from the etched model (keeps the MPN mark) · Ray 12h ago
attiny1634-su-hero.overlay.json Publish 0.1.0 · Ray 12h ago
attiny1634-su.glb Publish 0.1.0 · Ray 12h ago
attiny1634-su.kicad_mod Publish 0.1.0 · Ray 12h ago
attiny1634-su.kicad_sym Publish 0.1.0 · Ray 12h ago
attiny1634-su.lbr Publish 0.1.0 · Ray 12h ago
attiny1634-su.step Publish 0.1.0 · Ray 12h ago
package.json Publish 0.1.0 · Ray 12h ago
page.json Set visibility: public · Ray 12h ago
README.md Publish 0.1.0 · Ray 12h ago

ATTINY1634-SU

Microchip Tech · Microcontroller Units (MCUs/MPUs/SOCs) · SOIC-20-300mil

ATTINY1634-SU from Microchip Tech, in a SOIC-20-300mil. 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 PB0 bidirectional Port B bit 0, bidirectional I/O with selectable pull-up and symmetrical drive; alternate functions PCINT8, TXD0, ADC5.
2 PA7 bidirectional Port A bit 7, bidirectional I/O with selectable pull-up and symmetrical drive; alternate functions PCINT7, RXD0, ADC4.
3 PA6 bidirectional Port A bit 6, bidirectional I/O with selectable pull-up and asymmetrical drive (high sink, standard source); alternate functions PCINT6, OC1B, ADC3.
4 PA5 bidirectional Port A bit 5, bidirectional I/O with selectable pull-up and asymmetrical drive (high sink, standard source); alternate functions PCINT5, OC0B, ADC2.
5 PA4 bidirectional Port A bit 4, bidirectional I/O with selectable pull-up and symmetrical drive; alternate functions PCINT4, T0, ADC1.
6 PA3 bidirectional Port A bit 3, bidirectional I/O with selectable pull-up and symmetrical drive; alternate functions PCINT3, T1, SNS, ADC0.
7 PA2 bidirectional Port A bit 2, bidirectional I/O with selectable pull-up and symmetrical drive; alternate functions PCINT2, AIN1.
8 PA1 bidirectional Port A bit 1, bidirectional I/O with selectable pull-up and symmetrical drive; alternate functions PCINT1, AIN0.
9 PA0 bidirectional Port A bit 0, bidirectional I/O with selectable pull-up and symmetrical drive; alternate functions PCINT0, AREF.
10 GND power_in Ground.
11 VCC power_in Supply voltage.
12 PC5 bidirectional Port C bit 5, bidirectional I/O with selectable pull-up and symmetrical drive; alternate functions XTAL1 (input to the inverting oscillator amplifier and internal clock circuit), CLKI, PCINT17.
13 PC4 bidirectional Port C bit 4, bidirectional I/O with selectable pull-up and symmetrical drive; alternate functions XTAL2 (output from the inverting oscillator amplifier), PCINT16.
14 PC3 bidirectional Port C bit 3 / RESET: a low level longer than the minimum pulse length generates a reset even if the clock is not running, and the pin can also be used as a weak I/O pin; also dW, PCINT15.
15 PC2 bidirectional Port C bit 2, bidirectional I/O with selectable pull-up and symmetrical drive; alternate functions ADC11, CLKO, INT0, PCINT14.
16 PC1 bidirectional Port C bit 1, bidirectional I/O with selectable pull-up and symmetrical drive; alternate functions ADC10, ICP1, SCL, USCK, XCK1, PCINT13.
17 PC0 bidirectional Port C bit 0, bidirectional I/O with selectable pull-up and asymmetrical drive (high sink, standard source); alternate functions ADC9, OC0A, XCK0, PCINT12.
18 PB3 bidirectional Port B bit 3, bidirectional I/O with selectable pull-up and asymmetrical drive (high sink, standard source); alternate functions ADC8, OC1A, PCINT11.
19 PB2 bidirectional Port B bit 2, bidirectional I/O with selectable pull-up and symmetrical drive; alternate functions ADC7, DO, TXD1, PCINT10.
20 PB1 bidirectional Port B bit 1, bidirectional I/O with selectable pull-up and symmetrical drive; alternate functions ADC6, DI, SDA, RXD1, PCINT9.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-20-300mil
Category Single Chip Microcomputer/Microcontroller
Pins 20

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 (abs max) -55 125 °C 228
Storage Temperature -65 150 °C 228
Voltage on any pin except RESET wrt Ground -0.5 V max is VCC+0.5V 228
Voltage on RESET wrt Ground -0.5 13 V 228
Maximum Operating Voltage 6 V 228
DC Current per I/O Pin 40 mA 228
DC Current VCC and GND Pins 200 mA 228
Operating Voltage VCC 1.8 5.5 V 1
Operating Temperature (industrial) -40 85 °C Industrial 280
Input Low Voltage VIL -0.5 0.2 VCC VCC = 1.8 - 2.4V (min in V, max as multiple of VCC) 228
Input Low Voltage VIL -0.5 0.3 VCC VCC = 2.4 - 5.5V (min in V, max as multiple of VCC) 228
Input Low Voltage, RESET Pin as Reset VIL -0.5 0.2 VCC VCC = 1.8 - 5.5V (min in V, max as multiple of VCC) 228
Input High-voltage, except RESET pin VIH 0.7 VCC VCC = 1.8 - 2.4V; min as multiple of VCC; max is VCC+0.5V 228
Input High-voltage, except RESET pin VIH 0.6 VCC VCC = 2.4 - 5.5V; min as multiple of VCC; max is VCC+0.5V 228
Input High-voltage, RESET pin as Reset VIH 0.9 VCC VCC = 1.8 - 5.5V; min as multiple of VCC; max is VCC+0.5V 228
Output Low Voltage VOL 0.6 V Standard I/O: IOL = 10 mA, VCC = 5V; High-sink I/O: IOL = 20 mA, VCC = 5V 228
Output Low Voltage VOL 0.5 V Standard I/O: IOL = 5 mA, VCC = 3V; High-sink I/O: IOL = 10 mA, VCC = 3V 228
Output High-voltage VOH 4.3 V IOH = -10 mA, VCC = 5V 228
Output High-voltage VOH 2.5 V IOH = -5 mA, VCC = 3V 228
Input Leakage Current I/O Pin (low) ILIL 0.05 1 µA Vcc = 5.5V, pin low (absolute value); typ printed <0.05 228
Input Leakage Current I/O Pin (high) ILIH 0.05 1 µA Vcc = 5.5V, pin high (absolute value); typ printed <0.05 228
Pull-up Resistor, I/O Pin RPU 20 50 kΩ VCC = 5.5V, input low 228
Pull-up Resistor, Reset Pin RPU 30 60 kΩ VCC = 5.5V, input low 228
Supply Current, Active Mode ICC 0.23 0.4 mA f = 1MHz, VCC = 2V 229
Supply Current, Active Mode ICC 1.3 1.7 mA f = 4MHz, VCC = 3V 229
Supply Current, Active Mode ICC 4.3 6 mA f = 8MHz, VCC = 5V 229
Supply Current, Idle Mode ICC 0.04 0.1 mA f = 1MHz, VCC = 2V 229
Supply Current, Idle Mode ICC 0.26 0.4 mA f = 4MHz, VCC = 3V 229
Supply Current, Idle Mode ICC 1.1 1.7 mA f = 8MHz, VCC = 5V 229
Supply Current, Power-Down Mode ICC 1.7 4 µA WDT enabled, VCC = 3V 229
Supply Current, Power-Down Mode ICC 0.1 2 µA WDT disabled, VCC = 3V 229
Factory-calibrated 8MHz oscillator accuracy -10 10 % Factory calibration, 8.0MHz, VCC 2.7 - 4V, 25C to +85C 230
User-calibrated 8MHz oscillator accuracy -1 1 % User calibration, 7.3 - 8.1MHz, VCC 1.8 - 5.5V, -40C to +85C 230
Factory-calibrated 32kHz oscillator accuracy -30 30 % Factory calibration, VCC 1.8 - 5.5V, -40C to +105C 231
Clock Frequency 1/tCLCL 0 2 MHz VCC = 1.8 - 5.5V 231
Clock Frequency 1/tCLCL 0 8 MHz VCC = 2.7 - 5.5V 231
Clock Frequency 1/tCLCL 0 12 MHz VCC = 4.5 - 5.5V 231
RESET pin threshold voltage VRST 0.2 0.9 VCC multiples of VCC 231
Minimum pulse width on RESET pin tRST 2000 ns VCC = 1.8V 231
Minimum pulse width on RESET pin tRST 700 ns VCC = 3V 231
Minimum pulse width on RESET pin tRST 400 ns VCC = 5V 231
Brown-out Detector hysteresis VHYST 50 mV 231
Minimum pulse width on Brown-out Reset tBOD 2 µs 232
Internal bandgap reference voltage VBG 1 1.1 1.2 V VCC = 2.7V, TA = 25°C 232
Internal bandgap reference start-up time tBG 40 70 µs VCC = 2.7V, TA = 25°C 232
Internal bandgap reference current consumption IBG 15 µA VCC = 2.7V, TA = 25°C 232
Release threshold of power-on reset VPOR 1.1 1.4 1.6 V TA = -40 to +85C 232
Activation threshold of power-on reset VPOA 0.6 1.3 1.6 V TA = -40 to +85C 232
Power-On Slope Rate SRON 0.01 V/ms TA = -40 to +85C 232
Brown-out threshold VBOT VBOT 1.7 1.8 2 V BODLEVEL[2:0] = 11X 232
Brown-out threshold VBOT VBOT 2.5 2.7 2.9 V BODLEVEL[2:0] = 101 232
Brown-out threshold VBOT VBOT 4.1 4.3 4.5 V BODLEVEL[2:0] = 100 232
TWI Output Low voltage VOL 0 0.4 V 3mA sink current 233
TWI SCL clock frequency fSCL 0 400 kHz fCK > max(16fSCL, 250kHz) 233
ADC Resolution 10 Bits 234
ADC Absolute accuracy 2 LSB VREF = 4V, VCC = 4V, ADC clock = 200kHz 234
ADC Conversion Time 14 280 µs Free Running Conversion 234
Internal Voltage Reference VINT 1 1.1 1.2 V 234
Analog Comparator Input Offset Voltage VAIO 10 40 mV VCC = 5V, VIN = VCC / 2 235

CAD (KiCad official)

  • Symbol: ATTINY1634-SU
  • Footprint: Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm
  • 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
  • 3D model files: attiny1634-su-etched.step / attiny1634-su-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); attiny1634-su.step / attiny1634-su.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (292 pp, sha256 db64d0a5aab1ec89, retrieved 2026-10-27, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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