

Overview
The ATMEGA32M1-MU is a microcontroller made by Microchip Technology in a QFN-32(5x5) package with 33 pins. 10bit 10bit 16MHz 1KB 2.7V~5.5V 32KB AVR FLASH QFN-32(5x5) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (MCU_Microchip_ATmega:ATmega32M1-M, from KiCad's library) and its footprint (EasyEDA_Cloud:QFN-32_L7.0-W7.0-P0.65-BL-EP4.7, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C1340395). 4 open-source boards in 4 repositories on GitHub use it.
Symbol
Footprint
Parameters
8- ADC (Bit)
- 10bit
- CPU Core
- AVR
- CPU Maximum Speed
- 16MHz
- DAC (Bit)
- 10bit
- EEPROM
- 1KB
- Program Memory Type
- FLASH
- Program Storage Size
- 32KB
- Voltage - Supply
- 2.7V~5.5V
Order codes
1- ATMEGA32M1-MULCSC C1340395
Pinout
33| Pin | Name | Type |
|---|---|---|
| 1 | PD2 | Input/output |
| 2 | PD3 | Input/output |
| 3 | PC1 | Input/output |
| 4 | VCC | Power in |
| 5 | GND | Power in |
| 6 | PC2 | Input/output |
| 7 | PC3 | Input/output |
| 8 | PB0 | Input/output |
| 9 | PB1 | Input/output |
| 10 | XTAL1/PE1 | Input/output |
| 11 | XTAL2/PE2 | Input/output |
| 12 | PD4 | Input/output |
| 13 | PD5 | Input/output |
| 14 | PD6 | Input/output |
| 15 | PD7 | Input/output |
| 16 | PB2 | Input/output |
| 17 | PC4 | Input/output |
| 18 | PC5 | Input/output |
| 19 | AVCC | Power in |
| 20 | AGND | Power in |
| 21 | AREF/ISRC | Passive |
| 22 | PC6 | Input/output |
| 23 | PB3 | Input/output |
| 24 | PB4 | Input/output |
| 25 | PC7 | Input/output |
| 26 | PB5 | Input/output |
| 27 | PB6 | Input/output |
| 28 | PB7 | Input/output |
| 29 | PD0 | Input/output |
| 30 | PC0 | Input/output |
| 31 | RESET/PE0 | Input/output |
| 32 | PD1 | Input/output |
| 33 | GND | Passive |
Open-source boards using it
All 4- 4 layers100 × 99.9 mm

- 4 layers98 × 84 mm

- 4 layers95.9 × 90.2 mm

- 4 layers98 × 84 mm

Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/microchip/ATMEGA32M1-MU" title="ATMEGA32M1-MU in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/microchip/ATMEGA32M1-MU.jpg" alt="ATMEGA32M1-MU" width="1200" height="900">[](https://pcbkit.io/parts/microchip/ATMEGA32M1-MU)Questions
Is there a KiCad symbol and footprint for the ATMEGA32M1-MU?
Yes. The symbol is MCU_Microchip_ATmega:ATmega32M1-M and the footprint EasyEDA_Cloud:QFN-32_L7.0-W7.0-P0.65-BL-EP4.7, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ATMEGA32M1-MU?
QFN-32(5x5), with 33 pins. Its footprint is drawn on this page.
Where is the ATMEGA32M1-MU datasheet?
Microchip Technology publishes it: the Datasheet link on this page opens it.
Where can I order the ATMEGA32M1-MU?
JLCPCB lists it as part C1340395, with 0 in stock; the sellers' links on this page open their listings.
What can replace the ATMEGA32M1-MU?
Parts like it in the library: the AT90PWM316-16MU by Microchip Technology, the LPC1111FHN33/102K by NXP Semiconductors, the LPC1114FHN33/301,5 by NXP Semiconductors and the LPC1112FHN33/101,5 by NXP Semiconductors. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the ATMEGA32M1-MU?
4 boards in 4 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8AT90PWM316-16MU
HVQFN-32-EP(7x7)-40℃~+105℃ 10bit 10bit 16KB 16MHz 1KB 2.7V~5.5V 27 512Byte 8 Bit AVR Built-in FLASH QFN-32-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)LPC1111FHN33/102K
QFN-32-EP(7x7)-40℃~+85℃ 1.8V~3.6V 28 2KB 32 Bit 50MHz 8KB ARM Cortex-M0 Built-in FLASH QFN-32-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHSNXP SemiconductorsMicrocontrollers (MCU/MPU/SOC)LPC1114FHN33/301,5
QFN-32-EP(7x7)-40℃~+85℃ 1.8V~3.6V 10bit 28 32 Bit 32KB 50MHz 8KB ARM Cortex-M0 Built-in FLASH QFN-32-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHSNXP SemiconductorsMicrocontrollers (MCU/MPU/SOC)LPC1112FHN33/101,5
QFN-32-EP(7x7)-40℃~+85℃ 1.8V~3.6V 10bit 16KB 28 2KB 32 Bit 50MHz ARM Cortex-M0 Built-in FLASH QFN-32-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHSNXP SemiconductorsMicrocontrollers (MCU/MPU/SOC)LPC11E14FHN33/401,
QFN-32-EP(7x7)-40℃~+85℃ 1.8V~3.6V 10KB 10bit 28 32 Bit 32KB 4KB 50MHz ARM Cortex-M0 Built-in FLASH QFN-32-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHSNXP SemiconductorsMicrocontrollers (MCU/MPU/SOC)LPC1342FHN33
QFN-32-EP(7x7)-40℃~+85℃ 10bit 16KB 28 2V~3.6V 32 Bit 4KB 72MHz ARM Cortex-M3 Built-in FLASH QFN-32-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHSNXP SemiconductorsMicrocontrollers (MCU/MPU/SOC)AT90PWM3B-16MU
QFN-32-EP(7x7)10bit 10bit 16MHz 2.7V~5.5V 27 8KB AVR FLASH QFN-32-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)ATMEGA32C1-ESAD
UQFN-32-EP(5x5)-40℃~+150℃ 10bit 10bit 16MHz 1KB 2.7V~5.5V 2KB 32KB 8 Bit AVR Built-in FLASH UQFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)