
Step fan speed
GuillemCabo/step_fan_speed
Simple PCB to control computer fan speed with a atinny88
Microchip TechnologyExtended
-40℃~+85℃ 1.8V~5.5V 12MHz 28 512Byte 64Byte 8 Bit 8KB AVR Built-in FLASH QFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHS
The ATTINY88-MU is a microcontroller Unit made by Microchip Technology in a VQFN-32-EP(5x5) package with 33 pins. -40℃~+85℃ 1.8V~5.5V 12MHz 28 512Byte 64Byte 8 Bit 8KB AVR Built-in FLASH QFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (MCU_Microchip_ATtiny:ATtiny88-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. 4 are in stock at JLCPCB (part C219105). 1 open-source board in 1 repository on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | PD3 | Input/output |
| 2 | PD4 | Input/output |
| 3 | PA2 | Input/output |
| 4 | VCC | Power in |
| 5 | GND | Power in |
| 6 | PA3 | Input/output |
| 7 | PB6 | Input/output |
| 8 | PB7 | Input/output |
| 9 | PD5 | Input/output |
| 10 | PD6 | Input/output |
| 11 | PD7 | Input/output |
| 12 | PB0 | Input/output |
| 13 | PB1 | Input/output |
| 14 | PB2 | Input/output |
| 15 | PB3 | Input/output |
| 16 | PB4 | Input/output |
| 17 | PB5 | Input/output |
| 18 | AVCC | Power in |
| 19 | PA0 | Input/output |
| 20 | PC7 | Input/output |
| 21 | GND | Passive |
| 22 | PA1 | Input/output |
| 23 | PC0 | Input/output |
| 24 | PC1 | Input/output |
| 25 | PC2 | Input/output |
| 26 | PC3 | Input/output |
| 27 | PC4 | Input/output |
| 28 | PC5 | Input/output |
| 29 | RESET/PC6 | Input/output |
| 30 | PD0 | Input/output |
| 31 | PD1 | Input/output |
| 32 | PD2 | Input/output |
| 33 | GND | Passive |

GuillemCabo/step_fan_speed
Simple PCB to control computer fan speed with a atinny88
Yes. The symbol is MCU_Microchip_ATtiny:ATtiny88-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.
VQFN-32-EP(5x5), with 33 pins. Its footprint is drawn on this page.
Microchip Technology publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C219105, with 4 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the ATMEGA328P-MU by Microchip Technology, the ATMEGA8A-MU by Microchip Technology, the ATXMEGA16E5-MU by Microchip Technology and the ATTINY261A-MN by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.