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| PartNumber | ATMEGA48PA-MMHR | ATMEGA48PA-MMH | ATMEGA48PA-MMH-T |
| Description | 8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND | 8-bit Microcontrollers - MCU AVR 4K FLASH 256B EE 20MHZ IND TEMP 1.8V | |
| Manufacturer | Microchip | Microchip | - |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | QFN-28 | QFN-28 | - |
| Series | ATmega48PA | ATmega48PA | - |
| Core | AVR | AVR | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Maximum Clock Frequency | 20 MHz | 20 MHz | - |
| Program Memory Size | 4 kB | 4 kB | - |
| Data RAM Size | 512 B | 512 B | - |
| ADC Resolution | 10 bit | - | - |
| Number of I/Os | 23 I/O | 23 I/O | - |
| Operating Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Reel | Tray | - |
| Product | MCU | MCU | - |
| Program Memory Type | Flash | Flash | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Data RAM Type | SRAM | SRAM | - |
| Data ROM Size | 256 B | 256 B | - |
| Data ROM Type | EEPROM | EEPROM | - |
| Interface Type | I2C, SPI, USART | SPI, TWI, UART | - |
| Number of ADC Channels | 8 Channel | - | - |
| Number of Timers/Counters | 2 x 8 bit, 1 x 16 bit | 2 Timer | - |
| Processor Series | megaAVR | megaAVR | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 6000 | 490 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 1.8 V | 1.8 V | - |
| Tradename | AVR | AVR | - |
| Watchdog Timers | Watchdog Timer | - | - |
| Unit Weight | 0.001432 oz | 0.002497 oz | - |
| Height | - | 0.88 mm | - |
| Length | - | 4 mm | - |
| Width | - | 4 mm | - |
| Moisture Sensitive | - | Yes | - |