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ATTINY817-MFR

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Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), QFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentsingle chip microcomputer-microcontrollerattiny817-mfrfactory-2.0.0extractor-text

Verified ATTINY817-MFR

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier mfr, 25 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: ATTINY817-MFR · QFN-24-EP(4x4) · 25 pins
  • ✓copper: 25 copper pads, none touching another net
  • ✓datasheet: all 25 pin names found in the 596-page datasheet
  • ✓distributor: lcsc C2053166, digikey ATTINY817-MFRTR-ND, mouser 579-ATTINY817-MFR
  • ✓family: QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-p06kvhnm/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 25 pins = 25 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 25 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ attiny817-mfr.kicad_sym✓ attiny817-mfr.kicad_mod✓ attiny817-mfr.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 5d ago
viewers attiny817-mfr: viewers · Ray 5d ago
attiny817-mfr-etched.glb Publish 0.1.0 · Ray 5d ago
attiny817-mfr-etched.step attiny817-mfr: factory component page (tier=mfr) · Ray 5d ago
attiny817-mfr-hero.glb attiny817-mfr: hero GLB from the etched model (keeps the MPN mark) · Ray 5d ago
attiny817-mfr-hero.overlay.json Publish 0.1.0 · Ray 5d ago
attiny817-mfr.glb Publish 0.1.0 · Ray 5d ago
attiny817-mfr.kicad_mod Publish 0.1.0 · Ray 5d ago
attiny817-mfr.kicad_sym Publish 0.1.0 · Ray 5d ago
attiny817-mfr.lbr Publish 0.1.0 · Ray 5d ago
attiny817-mfr.step Publish 0.1.0 · Ray 5d ago
package.json Publish 0.1.0 · Ray 5d ago
page.json Set visibility: public · Ray 5d ago
README.md Publish 0.1.0 · Ray 5d ago
verification.json Verified: Published by the parts factory: tier mfr, 25 pins · Ray 5d ago

ATTINY817-MFR

Microchip Tech · Microcontroller Units (MCUs/MPUs/SOCs) · QFN-24-EP(4x4)

ATTINY817-MFR from Microchip Tech, in a QFN-24-EP(4x4). 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 PA2 bidirectional PA2 is a general-purpose I/O pin on PORTA that can also serve as EVOUT0, AIN2, RxD, MISO or SCL, with alternate positions selected through PORTMUX.
2 PA3 (EXTCLK) bidirectional PA3 is a general-purpose I/O pin on PORTA that serves as the external clock input EXTCLK, and can also serve as AIN3, XCK or SCK.
3 GND power_in GND is the ground reference pin for the device.
4 VDD power_in VDD is the power supply pin, with an operating supply range of 1.8 V to 5.5 V.
5 PA4 bidirectional PA4 is a general-purpose I/O pin on PORTA that can also serve as AIN4, X0/Y0 for PTC, XDIR, SS, WO4, WOA or LUT0-OUT.
6 PA5 bidirectional PA5 is a general-purpose I/O pin on PORTA that can also serve as AIN5, X1/Y1, OUT, WO5 or WOB.
7 PA6 bidirectional PA6 is a general-purpose I/O pin on PORTA that can also serve as AIN6, X2/Y2, AINN0 or the DAC0 OUT analog output.
8 PA7 bidirectional PA7 is a general-purpose I/O pin on PORTA that can also serve as AIN7, X3/Y3, AINP0 or LUT1-OUT.
9 PB7 bidirectional PB7 is a general-purpose I/O pin on PORTB that is available on the 24-pin package.
10 PB6 bidirectional PB6 is a general-purpose I/O pin on PORTB that is available on the 24-pin package.
11 PB5 bidirectional PB5 is a general-purpose I/O pin on PORTB that can also serve as CLKOUT, AIN8, AINP1 or WO2.
12 PB4 bidirectional PB4 is a general-purpose I/O pin on PORTB that can also serve as AIN9, AINN1, WO1 or LUT0-OUT.
13 PB3 (TOSC1) bidirectional PB3 is a general-purpose I/O pin on PORTB that serves as the 32.768 kHz crystal oscillator input TOSC1, and can also serve as RxD or WO0.
14 PB2 (TOSC2) bidirectional PB2 is a general-purpose I/O pin on PORTB that serves as the 32.768 kHz crystal oscillator output TOSC2, and can also serve as EVOUT1, TxD or WO2.
15 PB1 bidirectional PB1 is a general-purpose I/O pin on PORTB that can also serve as AIN10, X4/Y4, XCK, SDA or WO1.
16 PB0 bidirectional PB0 is a general-purpose I/O pin on PORTB that can also serve as AIN11, X5/Y5, XDIR, SCL or WO0.
17 PC0 bidirectional PC0 is a general-purpose I/O pin on PORTC that can also serve as SCK, WO or WOC.
18 PC1 bidirectional PC1 is a general-purpose I/O pin on PORTC that can also serve as MISO, WOD or LUT1-OUT.
19 PC2 bidirectional PC2 is a general-purpose I/O pin on PORTC that can also serve as EVOUT2 or MOSI.
20 PC3 bidirectional PC3 is a general-purpose I/O pin on PORTC that can also serve as SS, WO3 or LUT1-IN0.
21 PC4 bidirectional PC4 is a general-purpose I/O pin on PORTC that can also serve as WO4 or LUT1-IN1.
22 PC5 bidirectional PC5 is a general-purpose I/O pin on PORTC that can also serve as WO5 or LUT1-IN2.
23 PA0 (RESET/UPDI) bidirectional PA0 is the Reset/UPDI pin, whose function is set by the RSTPINCFG fuse to GPIO, UPDI or RESET, and it can also serve as AIN0 or LUT0-IN0.
24 PA1 bidirectional PA1 is a general-purpose I/O pin on PORTA that can also serve as AIN1, TxD, MOSI, SDA or LUT0-IN1.
25 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package QFN-24-EP(4x4)
Category Single Chip Microcomputer/Microcontroller
Pins 25

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage 2.7 5.5 V 560
Operating temperature range -40 125 °C 560
Maximum CPU speed 16 MHz 560

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin including indium tin oxide (ITO) sensor grids. The PTC requires one pin per X-line and one pin per Y-line. In the Self Capacitance mode, the PTC requires only one pin (Y-line) for each touch sensor. 461

CAD (KiCad official)

  • Symbol: ATTINY817-MFR
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm
  • 3D model: QFN-24-EP(4x4) (KiCad packages3D, STEP)
  • 3D model files: attiny817-mfr-etched.step / attiny817-mfr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); attiny817-mfr.step / attiny817-mfr.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (596 pp, sha256 c2392fe1c4c9666a, retrieved 2026-10-30, tier: manufacturer)
  • 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