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ATMEGA8535L-8AU

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Microchip Tech Microcontrollers (MCU/MPU/SOC), TQFP-44(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentembedded processors & controllersatmega8535l-8aufactory-2.0.0extractor-text

Verified ATMEGA8535L-8AU

by Ray · last 9 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

9 Nov 2026RayPublished by the parts factory: tier mfr, 44 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: ATMEGA8535L-8AU · TQFP-44(10x10) · 44 pins
  • ✓copper: 44 copper pads, none touching another net
  • ✓datasheet: all 44 pin names found in the 22-page datasheet
  • ✓distributor: lcsc C113559, digikey ATMEGA8535L-8AU-ND, mouser 556-ATMEGA8535L8AU
  • ✓family: TQFP-44_10x10mm_P0.8mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-vsa9v36i/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: 44 pins = 44 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 44 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ atmega8535l-8au.kicad_sym✓ atmega8535l-8au.kicad_mod✓ atmega8535l-8au.step
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Symbol & Footprint

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Contents

README

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ATMEGA8535L-8AU

Microchip Tech · Microcontrollers (MCU/MPU/SOC) · TQFP-44(10x10)

ATMEGA8535L-8AU from Microchip Tech, in a TQFP-44(10x10). 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, an 8-bit bidirectional I/O pin with selectable internal pull-up, alternate function MOSI (SPI).
2 PB6 bidirectional Port B bit 6, a bidirectional I/O pin with selectable internal pull-up, alternate function MISO (SPI).
3 PB7 bidirectional Port B bit 7, a bidirectional I/O pin with selectable internal pull-up, alternate function SCK (SPI).
4 RESET input Reset input; a low level longer than the minimum pulse length generates a reset even if the clock is not running.
5 VCC power_in Digital supply voltage.
6 GND power_in Ground.
7 XTAL2 output Output from the inverting oscillator amplifier.
8 XTAL1 input Input to the inverting oscillator amplifier and input to the internal clock operating circuit.
9 PD0 bidirectional Port D bit 0, a bidirectional I/O pin with selectable internal pull-up, alternate function RXD (USART).
10 PD1 bidirectional Port D bit 1, a bidirectional I/O pin with selectable internal pull-up, alternate function TXD (USART).
11 PD2 bidirectional Port D bit 2, a bidirectional I/O pin with selectable internal pull-up, alternate function INT0 (external interrupt).
12 PD3 bidirectional Port D bit 3, a bidirectional I/O pin with selectable internal pull-up, alternate function INT1 (external interrupt).
13 PD4 bidirectional Port D bit 4, a bidirectional I/O pin with selectable internal pull-up, alternate function OC1B (Timer/Counter1 output compare B).
14 PD5 bidirectional Port D bit 5, a bidirectional I/O pin with selectable internal pull-up, alternate function OC1A (Timer/Counter1 output compare A).
15 PD6 bidirectional Port D bit 6, a bidirectional I/O pin with selectable internal pull-up, alternate function ICP1 (Timer/Counter1 input capture).
16 PD7 bidirectional Port D bit 7, a bidirectional I/O pin with selectable internal pull-up, alternate function OC2 (Timer/Counter2 output compare).
17 VCC power_in Digital supply voltage.
18 GND power_in Ground.
19 PC0 bidirectional Port C bit 0, a bidirectional I/O pin with selectable internal pull-up, alternate function SCL (two-wire serial interface clock).
20 PC1 bidirectional Port C bit 1, a bidirectional I/O pin with selectable internal pull-up, alternate function SDA (two-wire serial interface data).
21 PC2 bidirectional Port C bit 2, a bidirectional I/O pin with selectable internal pull-up.
22 PC3 bidirectional Port C bit 3, a bidirectional I/O pin with selectable internal pull-up.
23 PC4 bidirectional Port C bit 4, a bidirectional I/O pin with selectable internal pull-up.
24 PC5 bidirectional Port C bit 5, a bidirectional I/O pin with selectable internal pull-up.
25 PC6 bidirectional Port C bit 6, a bidirectional I/O pin with selectable internal pull-up, alternate function TOSC1 (asynchronous timer oscillator).
26 PC7 bidirectional Port C bit 7, a bidirectional I/O pin with selectable internal pull-up, alternate function TOSC2 (asynchronous timer oscillator).
27 AVCC power_in Supply voltage pin for Port A and the A/D Converter; it must be connected to VCC even if the ADC is not used, through a low-pass filter if the ADC is used.
28 GND power_in Ground.
29 AREF input Analog reference pin for the A/D Converter.
30 PA7 bidirectional Port A bit 7, an analog input (ADC7) to the A/D Converter, or a bidirectional I/O pin with selectable pull-up if the ADC is not used.
31 PA6 bidirectional Port A bit 6, an analog input (ADC6) to the A/D Converter, or a bidirectional I/O pin with selectable pull-up if the ADC is not used.
32 PA5 bidirectional Port A bit 5, an analog input (ADC5) to the A/D Converter, or a bidirectional I/O pin with selectable pull-up if the ADC is not used.
33 PA4 bidirectional Port A bit 4, an analog input (ADC4) to the A/D Converter, or a bidirectional I/O pin with selectable pull-up if the ADC is not used.
34 PA3 bidirectional Port A bit 3, an analog input (ADC3) to the A/D Converter, or a bidirectional I/O pin with selectable pull-up if the ADC is not used.
35 PA2 bidirectional Port A bit 2, an analog input (ADC2) to the A/D Converter, or a bidirectional I/O pin with selectable pull-up if the ADC is not used.
36 PA1 bidirectional Port A bit 1, an analog input (ADC1) to the A/D Converter, or a bidirectional I/O pin with selectable pull-up if the ADC is not used.
37 PA0 bidirectional Port A bit 0, an analog input (ADC0) to the A/D Converter, or a bidirectional I/O pin with selectable pull-up if the ADC is not used.
38 VCC power_in Digital supply voltage.
39 GND power_in Ground.
40 PB0 bidirectional Port B bit 0, a bidirectional I/O pin with selectable internal pull-up, alternate functions XCK (USART external clock) and T0 (Timer/Counter0 clock input).
41 PB1 bidirectional Port B bit 1, a bidirectional I/O pin with selectable internal pull-up, alternate function T1 (Timer/Counter1 clock input).
42 PB2 bidirectional Port B bit 2, a bidirectional I/O pin with selectable internal pull-up, alternate functions AIN0 (analog comparator positive input) and INT2 (external interrupt).
43 PB3 bidirectional Port B bit 3, a bidirectional I/O pin with selectable internal pull-up, alternate functions AIN1 (analog comparator negative input) and OC0 (Timer/Counter0 output compare).
44 PB4 bidirectional Port B bit 4, a bidirectional I/O pin with selectable internal pull-up, alternate function SS (SPI slave select).

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package TQFP-44(10x10)
Category Embedded Processors & Controllers
Pins 44

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 voltage 2.7 5.5 V for ATmega8535L 1
Speed grade 0 8 MHz for ATmega8535L 1
Operating temperature (Industrial) -40 85 °C Industrial operation range for ATmega8535L-8AU 13

CAD (KiCad official)

  • Symbol: ATMEGA8535L-8AU
  • Footprint: Package_QFP:TQFP-44_10x10mm_P0.8mm
  • 3D model: TQFP-44(10x10) (KiCad packages3D, STEP)
  • 3D model files: atmega8535l-8au-etched.step / atmega8535l-8au-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); atmega8535l-8au.step / atmega8535l-8au.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (22 pp, sha256 c38c5b38530fba75, retrieved 2026-11-09, 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