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ATTINY827-MUR

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

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ATTINY827-MUR

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

ATTINY827-MUR from Microchip Tech, in a VQFN-24(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 PORTA pin 2 with EVOUTA, ADC input AIN2, USART RxD/RXD, SPI MISO and LUT0-IN2 functions; full asynchronous pin-change detection.
2 PA3 bidirectional PORTA pin 3 with EXTCLK external clock input, ADC input AIN3, USART XCK, SPI SCK, TCA0 WO3 and TCB1 WO functions.
3 GND power_in Ground.
4 VDD power_in Power supply; datasheet ordering table lists 1.8V-5.5V supply voltage.
5 PA4 bidirectional PORTA pin 4 with ADC input AIN4, USART XDIR, SPI SS, TCA0 WO4 and LUT0-OUT functions.
6 PA5 bidirectional PORTA pin 5 with VREFA external reference input, ADC input AIN5, AC0 OUT, TCA0 WO5, TCB0 WO and LUT3-OUT (alternate) functions.
7 PA6 bidirectional PORTA pin 6 with ADC input AIN6 and AC0 negative input AINN0; full asynchronous pin-change detection.
8 PA7 bidirectional PORTA pin 7 with EVOUTA (alternate), ADC input AIN7, AC0 positive input AINP0 and LUT1-OUT functions.
9 PB7 bidirectional PORTB pin 7 with EVOUTB (alternate location); digital function only.
10 PB6 bidirectional PORTB pin 6 with AC0 positive input AINP3 and LUT2-OUT (alternate); digital function only per pinout legend.
11 PB5 bidirectional PORTB pin 5 with CLKOUT, ADC input AIN8, AC0 positive input AINP1 and TCA0 WO2 (alternate) functions.
12 PB4 bidirectional PORTB pin 4 with alternate RESET location, ADC input AIN9, AC0 negative input AINN1, TCA0 WO1 (alternate) and LUT0-OUT functions.
13 PB3 bidirectional PORTB pin 3 with TOSC1 crystal oscillator pin, USART RxD, TCA0 WO0 (alternate) and LUT2-OUT functions.
14 PB2 bidirectional PORTB pin 2 with TOSC2 crystal oscillator pin, EVOUTB, USART TxD, TCA0 WO2 and LUT2-IN2 functions.
15 PB1 bidirectional PORTB pin 1 with ADC input AIN10, AC0 positive input AINP2, USART XCK, TWI SDA, TCA0 WO1 and LUT2-IN1 functions.
16 PB0 bidirectional PORTB pin 0 with ADC input AIN11, AC0 negative input AINN2, USART XDIR, TWI SCL, TCA0 WO0 and LUT2-IN0 functions.
17 PC0 bidirectional PORTC pin 0 with ADC input AIN12, USART XCK, SPI SCK, TCB0 WO (alternate) and LUT3-IN0 functions.
18 PC1 bidirectional PORTC pin 1 with ADC input AIN13, USART RxD, SPI MISO, LUT1-OUT (alternate) and LUT3-IN1 functions.
19 PC2 bidirectional PORTC pin 2 with EVOUTC, ADC input AIN14, USART TxD, SPI MOSI and LUT3-IN2 functions; full asynchronous pin-change detection.
20 PC3 bidirectional PORTC pin 3 with ADC input AIN15, USART XDIR, SPI SS, TCA0 WO3 (alternate) and LUT1-IN0 functions.
21 PC4 bidirectional PORTC pin 4 with TCA0 WO4 (alternate), TCB1 WO (alternate), LUT1-IN1 and LUT3-OUT functions.
22 PC5 bidirectional PORTC pin 5 with TCA0 WO5 (alternate) and LUT1-IN2 functions.
23 PA0 bidirectional PORTA pin 0 configured as RESET or UPDI programming/debug pin (selected by RSTPINCFG fuse), also LUT0-IN0.
24 PA1 bidirectional PORTA pin 1 with ADC input AIN1, USART TXD, SPI MOSI and LUT0-IN1 functions.
25 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package VQFN-24(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 VDD 1.8 5.5 V Ordering table, ATTINY827-MUR 509
Operating temperature range -40 85 °C Ordering table, ATTINY827-MUR (U = -40°C to +85°C) 509

CAD (KiCad official)

  • Symbol: ATTINY827-MUR
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm
  • 3D model: VQFN-24(4x4) (KiCad packages3D, STEP)
  • 3D model files: attiny827-mur-etched.step / attiny827-mur-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); attiny827-mur.step / attiny827-mur.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (532 pp, sha256 654989c2c48c3753, retrieved 2026-10-26, 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