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| PartNumber | ATMEGA644P-15MT | ATMEGA644P-15MZ | ATMEGA644P-15MT1 |
| Description | 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V | 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V | 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | VQFN-44 | VQFN-44 | VQFN-44 |
| Series | ATmega644P | ATmega644P | ATmega644P |
| Core | AVR | AVR | AVR |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 16 MHz | 16 MHz | 15 MHz |
| Program Memory Size | 64 kB | 64 kB | 64 kB |
| Data RAM Size | 4 kB | 4 kB | 4 kB |
| Number of I/Os | 32 I/O | 32 I/O | 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 | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 125 C | + 105 C |
| Height | 0.95 mm | 0.95 mm | 0.95 mm |
| Length | 7 mm | 7 mm | 7 mm |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | Flash | Flash |
| Width | 7 mm | 7 mm | 7 mm |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Data RAM Type | SRAM | SRAM | SRAM |
| Data ROM Size | 2 kB | 2 kB | 2 kB |
| Data ROM Type | EEPROM | EEPROM | EEPROM |
| Interface Type | 2-Wire, SPI, USART | 2-Wire, SPI, USART | 2-Wire, SPI, USART |
| Number of Timers/Counters | 3 Timer | 3 Timer | 3 Timer |
| Processor Series | megaAVR | megaAVR | megaAVR |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 4000 | 4000 | 4000 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 2.7 V | 2.7 V | 2.7 V |
| Tradename | AVR | AVR | AVR |
| Manufacturer | Part # | Description | RFQ |
|---|---|---|---|
Microchip Technology / Atmel |
ATMEGA644P-15MT | 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V | |
| ATMEGA644P-15MZ | 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V | ||
| ATMEGA644P-15MT1 | 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V | ||
| ATMEGA644P-15MT | IC MCU 8BIT 64KB FLASH 44VQFN | ||
| ATMEGA644P-15MT1 | IC MCU 8BIT 64KB FLASH 44VQFN | ||
| ATMEGA644P-15MZ | IC MCU 8BIT 64KB FLASH 44VQFN |