ATMEGA329 and ATMEGA3290 are with 32K bytes of in-system programmable FLASH memory, and ATMEGA649 and ATMEGA6490 are with 64K bytes of in-system programmable FLASH memory.RayMing Technology ATMEGA329, ATMEGA3290, ATMEGA649 and ATMEGA6490 MCU decryption solutions are mature and can ensure that the chip decryption is completed within hours and the success of chip decryption is 100%. ATMEGA6490 microcontroller decryption of the program is mature, can ensure that the chip decryption in a few hours to complete, and chip decryption success rate of 100%.

Characterization of ATMEGA329, ATMEGA3290, ATMEGA649 and ATMEGA6490:
-High-performance, low-power 8-bit AVR® microcontrollers
-Advanced RISC architecture

• 131 instructions – most of them executed in a single clock cycle
• 32*8 general-purpose working registers
• Fully static operation
• Up to 20 MIPS throughput at 20 MHz
• On-chip 2-cycle multiplier
  Highly durable, non-volatile memory segments
• 32K bytes of in-system programmable Flash (ATMEGA3290)
• 1024 bytes of EEPROM (ATMEGA3290)
• 2K bytes of on-chip SRAM (ATMEGA3290)
• Write/erase count: 10,000/ 10,000 times EEPROM
• Data retention: 20 years at 85°C / 100 years at 25°C (1)
• Optional boot with independent locking of bit code segments, on-chip bootloader programmed in the system, true simultaneous read and write operations
• Programming software security lock
  -Peripheral Features
• Two 8-bit timer/counters with independent prescaler and compare modes
• One 16-bit timer/counter with independent prescaler, compare mode, and capture mode
• Real-time counter with independent oscillator
• 6 PWM channels
• 8-channel 10-bit ADC for temperature measurement in TQFP and QFN/MLF packages
• 6-channel 10-bit ADC pin PDIP package temperature measurement
• Programmable Serial USART
• Master/Slave mode SPI serial interface
• Byte-oriented two-wire serial interface (Philips I2C compatible)
• Programmable watchdog timer with independent on-chip oscillator
• On-chip analog comparator
• Interrupt and wake-up pin level changes
  -Special processor features
• Power-on reset and programmable power-down detection
• Internally calibrated oscillator.
• External and internal interrupt sources
• 6 sleep modes: Idle Mode, ADC Noise Suppression, Power Save, Power Down, Standby, Extended Standby
  -I/O and Packaging
• 54/69 programmable I/O lines
• 64-lead TQFP, 64-pad QFN/MLF, and 100-lead TQFP
  -Operating voltage:
• ATmega329PV: 0 – 4 MHz @ 1.8 – 5.5V, 0 – 10 MHz @ 2.7 – 5.5V
• ATmega329P:0 – 10 MHz @ 2.7 – 5.5V, 0 – 20 MHz @ 4.5 – 5.5V
  -Temperature range: -40°C to 85°C.
  -Low power frequency is:
• Active Mode:420°C at 1 MHz, 1.8V
• Power-down Mode:40 nA at 1.8V
• Power-save Mode:750 nA at 1.8V

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