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Description
Datasheet 2.2. Comparison between ATmega164A, ATmega164PA, ATmega324A, ATmega324PA,. ATmega644A, ATmega644PA , ATmega1284 and ATmega1284P. 2.3. 2.2. Comparison between ATmega164A, ATmega164PA, ATmega324A, ATmega324PA,. ATmega644A, ATmega644PA , ATmega1284 and ATmega1284P. 2.3. 16/32/64/128K. Bytes In-System. Programmable. Flash. ATmega164PA. ATmega324PA. ATmega644PA . ATmega1284P. Summary. Rev. 8152GS AVR 11/09 Features. High-performance, Low-power Atmel AVR 8-bit Microcontroller. Advanced RISC Architecture. 131 Powerful Instructions Most Single-clock Features. High Performance, Low Power AVR 8-Bit Microcontroller. Advanced RISC Architecture. 125 Powerful Instructions Most Single Clock Cycle
| Part Number | ATMEGA644PAMU |
| Main Category | Integrated Circuits (ICs) |
| Sub Category | Embedded - Microcontrollers |
| Brand | Microchip |
| Description | IC MCU 8BIT 64KB FLASH 44VQFN |
| Series | AVR ATmega |
| Packaging | Tray |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | I²ÂC, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 32 |
| Program Memory Size | 64KB (32K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 2K x 8 |
| RAM Size | 4K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8 V ~ 5.5 V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package / Case | 44-VFQFN Exposed Pad |
| Supplier Device Package | 44-VQFN (7x7) |
| Image |  |
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