

Overview
The ATTINY87-MU is a microcontroller made by Microchip Technology in a QFN-32 package with 33 pins. -40℃~+85℃ 1.8V~5.5V 10bit 16 16MHz 512Byte 512Byte 8 Bit 8KB AVR Built-in FLASH VQFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (MCU_Microchip_ATtiny:ATtiny87-M, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm, from KiCad's library), ready for a KiCad board. 10 are in stock at JLCPCB (part C618022). 3 open-source boards in 2 repositories on GitHub use it.
Symbol
Footprint
Parameters
12- ADC (Bit)
- 10bit
- CPU Core
- AVR
- CPU Maximum Speed
- 16MHz
- Core Size
- 8 Bit
- EEPROM
- 512Byte
- Number of I/O
- 16
- Operating Temperature
- -40℃~+85℃
- Oscillator Type
- Built-in
- Program Memory Type
- FLASH
- Program Storage Size
- 8KB
- RAM Size
- 512Byte
- Voltage - Supply
- 1.8V~5.5V
Order codes
3- ATTINY87-MULCSC C1337179
- ATTINY87-MURLCSC C610576
- ATTINY87-MULCSC C618022
Pinout
33| Pin | Name | Type |
|---|---|---|
| 1 | NC | Not connected |
| 2 | NC | Not connected |
| 3 | PA3 | Input/output |
| 4 | AVCC | Power in |
| 5 | AGND | Power in |
| 6 | NC | Not connected |
| 7 | NC | Not connected |
| 8 | NC | Not connected |
| 9 | PA4 | Input/output |
| 10 | PA5 | Input/output |
| 11 | PA6 | Input/output |
| 12 | AREF/PA7 | Input/output |
| 13 | NC | Not connected |
| 14 | RESET/PB7 | Input/output |
| 15 | PB6 | Input/output |
| 16 | NC | Not connected |
| 17 | NC | Not connected |
| 18 | XTAL2/PB5 | Input/output |
| 19 | XTAL1/PB4 | Input/output |
| 20 | VCC | Power in |
| 21 | GND | Power in |
| 22 | NC | Not connected |
| 23 | NC | Not connected |
| 24 | NC | Not connected |
| 25 | PB3 | Input/output |
| 26 | PB2 | Input/output |
| 27 | PB1 | Input/output |
| 28 | PB0 | Input/output |
| 29 | PA0 | Input/output |
| 30 | PA1 | Input/output |
| 31 | PA2 | Input/output |
| 32 | NC | Not connected |
| 33 | GND | Passive |
Open-source boards using it
All 3- 2 layers80 × 105 mm

- 4 layers26.8 × 30 mm

- 2 layers80 × 100 mm

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Is there a KiCad symbol and footprint for the ATTINY87-MU?
Yes. The symbol is MCU_Microchip_ATtiny:ATtiny87-M and the footprint Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ATTINY87-MU?
QFN-32, with 33 pins. Its footprint is drawn on this page.
Where is the ATTINY87-MU datasheet?
Microchip Technology publishes it: the Datasheet link on this page opens it.
Where can I order the ATTINY87-MU?
JLCPCB lists it as part C618022, with 10 in stock; the sellers' links on this page open their listings.
What can replace the ATTINY87-MU?
Parts like it in the library: the ATMEGA328P-MUR by Microchip Technology, the ATMEGA88PA-MU by Microchip Technology, the ATMEGA168PA-MU by Microchip Technology and the ATMEGA328PB-MN by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the ATTINY87-MU?
3 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
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