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ATTINY48-AUR

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

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ATTINY48-AUR

Microchip Tech · Microcontroller Units (MCUs/MPUs/SOCs) · TQFP-32(7x7)

ATTINY48-AUR 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 bidirectional I/O with selectable internal pull-up resistors; PD[3:0] output buffers have high sink capability.
2 PD4 bidirectional Port D bidirectional I/O with selectable internal pull-up resistors; PD[3:0] output buffers have high sink capability.
3 PA2 bidirectional Port A bidirectional I/O with selectable internal pull-up resistors, tri-stated on reset; Port A is available only in 32-lead TQFP, 32-pad QFN and 32-ball UFBGA packages.
4 VCC power_in Digital supply voltage.
5 GND power_in Ground.
6 PA3 bidirectional Port A bidirectional I/O with selectable internal pull-up resistors, tri-stated on reset; Port A is available only in 32-lead TQFP, 32-pad QFN and 32-ball UFBGA packages.
7 PB6 bidirectional Port B bidirectional I/O with selectable internal pull-up resistors; depending on clock selection fuse settings, PB6 can be used as input to the internal clock operating circuit.
8 PB7 bidirectional Port B bidirectional I/O with selectable internal pull-up resistors, tri-stated on reset.
9 PD5 bidirectional Port D bidirectional I/O with symmetrical sink and source drive characteristics and selectable internal pull-up resistors.
10 PD6 bidirectional Port D bidirectional I/O with symmetrical sink and source drive characteristics and selectable internal pull-up resistors.
11 PD7 bidirectional Port D bidirectional I/O with symmetrical sink and source drive characteristics and selectable internal pull-up resistors.
12 PB0 bidirectional Port B bidirectional I/O with selectable internal pull-up resistors, tri-stated on reset.
13 PB1 bidirectional Port B bidirectional I/O with selectable internal pull-up resistors, tri-stated on reset.
14 PB2 bidirectional Port B bidirectional I/O with selectable internal pull-up resistors, tri-stated on reset.
15 PB3 bidirectional Port B bidirectional I/O with selectable internal pull-up resistors, tri-stated on reset.
16 PB4 bidirectional Port B bidirectional I/O with selectable internal pull-up resistors, tri-stated on reset.
17 PB5 (SCK/PCINT5) bidirectional Port B bidirectional I/O with selectable internal pull-up resistors, tri-stated on reset.
18 AVCC power_in Supply voltage pin for the A/D converter and selected I/O pins; it should be connected to VCC even if the ADC is not used.
19 PA0 (ADC6/PCINT24) bidirectional Port A bidirectional I/O with selectable internal pull-up resistors, tri-stated on reset; PA[1:0] take supply from AVCC in 32-lead packages.
20 PC7 (PCINT15) bidirectional Port C bidirectional I/O with selectable internal pull-up resistors; PC7 receives its supply voltage from AVCC.
21 GND power_in Ground.
22 PA1 (ADC7/PCINT25) bidirectional Port A bidirectional I/O with selectable internal pull-up resistors, tri-stated on reset; PA[1:0] take supply from AVCC in 32-lead packages.
23 PC0 (ADC0/PCINT8) bidirectional Port C bidirectional I/O with selectable internal pull-up resistors; PC[5:0] receive their supply voltage from AVCC.
24 PC1 (ADC1/PCINT9) bidirectional Port C bidirectional I/O with selectable internal pull-up resistors; PC[5:0] receive their supply voltage from AVCC.
25 PC2 (ADC2/PCINT10) bidirectional Port C bidirectional I/O with selectable internal pull-up resistors; PC[5:0] receive their supply voltage from AVCC.
26 PC3 (ADC3/PCINT11) bidirectional Port C bidirectional I/O with selectable internal pull-up resistors; PC[5:0] receive their supply voltage from AVCC.
27 PC4 (ADC4/SDA/PCINT12) bidirectional Port C bidirectional I/O with selectable internal pull-up resistors; PC[5:0] receive their supply voltage from AVCC.
28 PC5 (ADC5/SCL/PCINT13) bidirectional Port C bidirectional I/O with selectable internal pull-up resistors; PC[5:0] receive their supply voltage from AVCC.
29 PC6 (RESET/PCINT14) bidirectional Acts as reset input when the RSTDISBL fuse is unprogrammed (a low level longer than the minimum pulse width generates a reset); otherwise an I/O pin whose electrical characteristics differ from other Port C pins.
30 PD0 (PCINT16) bidirectional Port D bidirectional I/O with selectable internal pull-up resistors; PD[3:0] output buffers have high sink capability.
31 PD1 (PCINT17) bidirectional Port D bidirectional I/O with selectable internal pull-up resistors; PD[3:0] output buffers have high sink capability.
32 PD2 (INT0/PCINT18) bidirectional Port D bidirectional I/O with selectable internal pull-up resistors; PD[3:0] output buffers have high sink capability.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package TQFP-32(7x7)
Category Single Chip Microcomputer/Microcontroller
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
Operating Voltage 1.8 5.5 V 1
Temperature Range -40 85 °C Industrial 1

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 , H: NiPdAu lead finish, U: matte tin 14

CAD (KiCad official)

  • Symbol: ATTINY48-AUR
  • Footprint: Package_QFP:TQFP-32_7x7mm_P0.8mm
  • 3D model: TQFP-32(7x7) (KiCad packages3D, STEP)
  • 3D model files: attiny48-aur-etched.step / attiny48-aur-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); attiny48-aur.step / attiny48-aur.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (26 pp, sha256 f9a76eef5f5dcba0, retrieved 2026-10-28, 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