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| PartNumber | ATMEGA128L-8MI | ATMEGA128L-8MC | ATMEGA128L-8MJ |
| Description | 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 | IC MCU 8BIT 128KB FLASH 64QFN |
| Manufacturer | Microchip | Microchip | Atmel |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | Embedded - Microcontrollers |
| RoHS | N | N | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | MLF-64 | MLF-64 | - |
| Series | ATmega128 | ATmega128 | AVRR ATmega |
| Core | AVR | AVR | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Maximum Clock Frequency | 8 MHz | 8 MHz | - |
| Program Memory Size | 128 kB | 128 kB | 128KB (64K x 16) |
| Data RAM Size | 4 kB | 4 kB | - |
| Number of I/Os | 53 I/O | 53 I/O | - |
| Operating Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | - |
| Minimum Operating Temperature | - 40 C | 0 C | - |
| Maximum Operating Temperature | + 85 C | + 70 C | - |
| Height | 0.88 mm | 0.88 mm | - |
| Length | 9 mm | 9 mm | - |
| Product | MCU | MCU | - |
| Program Memory Type | Flash | Flash | FLASH |
| Width | 9 mm | 9 mm | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Data RAM Type | SRAM | SRAM | - |
| Data ROM Size | 4 kB | 4 kB | - |
| Data ROM Type | EEPROM | EEPROM | - |
| Interface Type | 2-Wire, JTAG, SPI, USART | 2-Wire, JTAG, SPI, USART | - |
| Number of Timers/Counters | 2 Timer | 2 Timer | - |
| Processor Series | megaAVR | megaAVR | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 260 | 260 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 2.7 V | 2.7 V | - |
| Tradename | AVR | AVR | - |
| Packaging | - | - | Tray |
| Package Case | - | - | 64-VFQFN Exposed Pad |
| Operating Temperature | - | - | -40°C ~ 85°C (TA) |
| Supplier Device Package | - | - | 64-QFN (9x9) |
| Number of I O | - | - | 53 |
| Speed | - | - | 8MHz |
| EEPROM Size | - | - | 4K x 8 |
| Core Processor | - | - | AVR |
| RAM Size | - | - | 4K x 8 |
| Peripherals | - | - | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | - | - | EBI/EMI, I2C, SPI, UART/USART |
| Voltage Supply Vcc Vdd | - | - | 2.7 V ~ 5.5 V |
| Core Size | - | - | 8-Bit |
| Data Converters | - | - | A/D 8x10b |
| Oscillator Type | - | - | Internal |