| PartNumber | ATMEGA128L-8MN | ATMEGA128L-8MI | ATMEGA128L-8MC |
| Description | 8-bit Microcontrollers - MCU AVR,128KB FLASH,5V 4KB EE,4KB SRAM,8MHZ | 8-bit Microcontrollers - MCU AVR 1K FLSH 64B EE 64B SRAM ADC 8MHZ | 8-bit Microcontrollers - MCU AVR 1K FLSH 64B EE 64B SRAM ADC 8MHZ |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | N | N |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | MLF-64 | MLF-64 | MLF-64 |
| Series | ATmega128 | ATmega128 | ATmega128 |
| Core | AVR | AVR | AVR |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 8 MHz | 8 MHz | 8 MHz |
| Program Memory Size | 128 kB | 128 kB | 128 kB |
| Data RAM Size | 4 kB | 4 kB | 4 kB |
| ADC Resolution | 10 bit | - | - |
| Number of I/Os | 53 I/O | 53 I/O | 53 I/O |
| Operating Supply Voltage | 3 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | 0 C |
| Maximum Operating Temperature | + 105 C | + 85 C | + 70 C |
| Packaging | Tray | - | - |
| Height | 0.88 mm | 0.88 mm | 0.88 mm |
| Length | 9 mm | 9 mm | 9 mm |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | Flash | Flash |
| Width | 9 mm | 9 mm | 9 mm |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Data RAM Type | SRAM | SRAM | SRAM |
| Data ROM Size | 4 kB | 4 kB | 4 kB |
| Data ROM Type | EEPROM | EEPROM | EEPROM |
| Interface Type | I2C, JTAG, SPI, USART | 2-Wire, JTAG, SPI, USART | 2-Wire, JTAG, SPI, USART |
| Analog Supply Voltage | 2.7 V to 5.5 V | - | - |
| DAC Resolution | - | - | - |
| I/O Voltage | 2.7 V to 5.5 V | - | - |
| Moisture Sensitive | Yes | - | - |
| Number of ADC Channels | 8 Channel | - | - |
| Number of Timers/Counters | 4 Timer | 2 Timer | 2 Timer |
| Processor Series | ATmega | megaAVR | megaAVR |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 260 | 260 | 260 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 3 V | 2.7 V | 2.7 V |
| Tradename | AVR | AVR | AVR |
| Watchdog Timers | Watchdog Timer | - | - |