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ATMEGA168PA-AN

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Microchip Tech Pre-ordered MCUs, TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentembedded processors & controllersatmega168pa-anfactory-2.0.0extractor-text

Verified ATMEGA168PA-AN

by Ray · last 31 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

31 Oct 2026RayPublished by the parts factory: tier mfr, 32 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: ATMEGA168PA-AN · TQFP-32(7x7) · 32 pins
  • ✓copper: 32 copper pads, none touching another net
  • ✓datasheet: all 32 pin names found in the 653-page datasheet
  • •distributor (warn): no ['mouser'] number
  • ✓family: TQFP-32_7x7mm_P0.8mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-gbs5hz3x/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: 32 pins = 32 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 32 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ atmega168pa-an.kicad_sym✓ atmega168pa-an.kicad_mod✓ atmega168pa-an.step
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Ray Publish 0.1.0 ecfcef3 4d ago

ATMEGA168PA-AN

Microchip Tech · Pre-ordered MCUs · TQFP-32(7x7)

ATMEGA168PA-AN from Microchip Tech, in a TQFP-32(7x7). 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 PD3 bidirectional Port D bit 3 with internal pull-up; alternate functions INT1, OC2B and PCINT19.
2 PD4 bidirectional Port D bit 4 with internal pull-up; alternate functions XCK, T0 and PCINT20.
3 GND power_in Ground.
4 VCC power_in Digital supply voltage.
5 GND power_in Ground.
6 VCC power_in Digital supply voltage.
7 PB6 bidirectional Port B bit 6; per clock fuse settings it is the input to the inverting oscillator amplifier (XTAL1) or TOSC1, with PCINT6.
8 PB7 bidirectional Port B bit 7; per clock fuse settings it is the output of the inverting oscillator amplifier (XTAL2) or TOSC2, with PCINT7.
9 PD5 bidirectional Port D bit 5 with internal pull-up; alternate functions T1, OC0B and PCINT21.
10 PD6 bidirectional Port D bit 6 with internal pull-up; alternate functions AIN0 (comparator positive input), OC0A and PCINT22.
11 PD7 bidirectional Port D bit 7 with internal pull-up; alternate functions AIN1 (comparator negative input) and PCINT23.
12 PB0 bidirectional Port B bit 0 with internal pull-up; alternate functions ICP1, CLKO (divided system clock output) and PCINT0.
13 PB1 bidirectional Port B bit 1 with internal pull-up; alternate functions OC1A and PCINT1.
14 PB2 bidirectional Port B bit 2 with internal pull-up; alternate functions SS (SPI slave select), OC1B and PCINT2.
15 PB3 bidirectional Port B bit 3 with internal pull-up; alternate functions MOSI, OC2A and PCINT3.
16 PB4 bidirectional Port B bit 4 with internal pull-up; alternate functions MISO and PCINT4.
17 PB5 bidirectional Port B bit 5 with internal pull-up; alternate functions SCK (SPI clock) and PCINT5.
18 AVCC power_in Supply voltage for the A/D converter, PC3:0 and ADC7:6; must be connected to VCC even if the ADC is unused, through a low-pass filter if the ADC is used.
19 ADC6 input Analog input to the 10-bit A/D converter (TQFP and VQFN only), powered from the analog supply.
20 AREF input Analog reference pin for the A/D converter.
21 GND power_in Ground.
22 ADC7 input Analog input to the 10-bit A/D converter (TQFP and VQFN only), powered from the analog supply.
23 PC0 bidirectional Port C bit 0 with internal pull-up; ADC0 input (uses analog power) and PCINT8.
24 PC1 bidirectional Port C bit 1 with internal pull-up; ADC1 input (uses analog power) and PCINT9.
25 PC2 bidirectional Port C bit 2 with internal pull-up; ADC2 input (uses analog power) and PCINT10.
26 PC3 bidirectional Port C bit 3 with internal pull-up; ADC3 input (uses analog power) and PCINT11.
27 PC4 bidirectional Port C bit 4 with internal pull-up; ADC4, SDA (2-wire data) and PCINT12; uses digital supply VCC.
28 PC5 bidirectional Port C bit 5 with internal pull-up; ADC5, SCL (2-wire clock) and PCINT13; uses digital supply VCC.
29 PC6/RESET input Reset input when RSTDISBL fuse is unprogrammed (a low level longer than the minimum pulse length generates a reset); I/O pin when the fuse is programmed; PCINT14.
30 PD0 bidirectional Port D bit 0 with internal pull-up; alternate functions RXD (USART input) and PCINT16.
31 PD1 bidirectional Port D bit 1 with internal pull-up; alternate functions TXD (USART output) and PCINT17.
32 PD2 bidirectional Port D bit 2 with internal pull-up; alternate functions INT0 and PCINT18.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package TQFP-32(7x7)
Category Embedded Processors & Controllers
Pins 32

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Power supply voltage VCC 1.8 5.5 V ATmega168PA-AN ordering table, 20 MHz 633
Operating temperature (Industrial) TA -40 105 °C ATmega168PA-AN, Industrial 633
Speed grade 20 MHz 1.8 - 5.5 V 633
TWI bus capacitance limit 400 pF 216
debugWIRE RESET pull-up resistor 10 kΩ must not be smaller than 10k on dW/(RESET) line 263
Flash write/erase cycles 10000 cycles Flash 1
EEPROM write/erase cycles 100000 cycles EEPROM 1
Watchdog time-out, 512 cycles tTOUT 4.1 ms VCC = 5.0V 38

CAD (KiCad official)

  • Symbol: ATMEGA168PA-AN
  • Footprint: Package_QFP:TQFP-32_7x7mm_P0.8mm
  • 3D model: TQFP-32(7x7) (KiCad packages3D, STEP)
  • 3D model files: atmega168pa-an-etched.step / atmega168pa-an-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); atmega168pa-an.step / atmega168pa-an.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (653 pp, sha256 b9b9d83cda56a95d, retrieved 2026-10-31, 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