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ATTINY827-MUR
Public Made by Adomby adom
Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), VQFN-24(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownATTINY827-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);attiny827-mur.step/attiny827-mur.glbare 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, primaryclaude-sonnet-5-5(text), consensusclaude-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).