| PartNumber | ATMEGA32A-MU | ATMEGA32A-MN | ATMEGA32A-MNR |
| Description | 8-bit Microcontrollers - MCU 32KB In-system Flash 2.7V - 5.5V | 8-bit Microcontrollers - MCU AVR 32KB FL 1KB EE 2KB SRAM 16MHz Grn | 8-bit Microcontrollers - MCU AVR 32KB FL 1KB EE 2KB SRAM 16MHz Grn |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | MLF-44 | VQFN-44 | VQFN-44 |
| Series | ATmega32A | ATmega32A | ATmega32A |
| Core | AVR | AVR | AVR |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 16 MHz | 16 MHz | 16 MHz |
| Program Memory Size | 32 kB | - | - |
| Data RAM Size | 2 kB | - | - |
| Number of I/Os | 32 I/O | - | - |
| Operating Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Tray | Tray | Reel |
| Height | 0.88 mm | - | - |
| Length | 7 mm | - | - |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | - | - |
| Width | 7 mm | - | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Data RAM Type | SRAM | - | - |
| Data ROM Size | 1024 B | - | - |
| Data ROM Type | EEPROM | - | - |
| Interface Type | 2-Wire, SPI, USART | - | - |
| Number of Timers/Counters | 3 Timer | - | - |
| Processor Series | megaAVR | megaAVR | megaAVR |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 360 | 360 | 4000 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 5.5 V | - | - |
| Supply Voltage Min | 2.7 V | - | - |
| Tradename | AVR | AVR | AVR |
| Unit Weight | 0.007760 oz | - | - |