MICROCHIP ATMEGA4809-AFR

The ATmega3208/3209/4808/4809 microcontrollers of the megaAVR® 0-series are using the AVR® processor with hardware multiplier, running at up to 20 MHz, with a wide range of Flash sizes up to 48 KB, up to 6 KB of SRAM, and 256 bytes of EEPROM in 28-, 32-, or 48-pin package. The series uses the latest technologies from Microchip with a flexible and low-power architecture including Event System and SleepWalking, accurate analog features and advanced peripherals. The devices described here offer Flash sizes from 32 KB to 48 KB in a 48-pin package.

• AVR® CPU
  • Single-cycle I/O access
  • Two-level interrupt controller
  • Two-cycle hardware multiplier
• Memories
  • Up to 48 KB In-system self-programmable Flash memory
  • 256B EEPROM
  • Up to 6 KB SRAM
  • Write/Erase endurance: Flash 10,000 cycles, EEPROM 100,000 cycles
  • Data retention: 20 Years at 85℃
• System
  • 20 MHz low power internal oscillator with fuse-protected frequency setting
  • 32.768 kHz Ultra Low Power (ULP) internal oscillator
  • 32.768 kHz external crystal oscillator
  • External clock input
  • Single pin Unified Program Debug Interface (UPDI)
  • SleepWalking peripherals
  • Power Down with limited wake-up functionality
• Peripherals
  • One 16-bit Timer/Counter type A with dedicated period register, three compare channels (TCA)
  • Four 16-bit Timer/Counter type B with input capture (TCB)
  • One 16-bit Real Time Counter (RTC) running from external crystal or internal RC oscillator
  • Four USART with fractional baud rate generator, autobaud, and start-of-frame detection
  • Master/slave Serial Peripheral Interface (SPI)
  • Dual mode Master/Slave TWI with dual address match
    • Standard mode (Sm, 100 kHz)
    • Fast mode (Fm, 400 kHz)
    • Fast mode plus (Fm+, 1 MHz)
  • Event System for CPU independent and predictable inter-peripheral signaling
  • Configurable Custom Logic (CCL) with up to four programmable Lookup Tables (LUT)
  • One Analog Comparator (AC) with scalable reference input
  • One 10-bit 150 ksps Analog to Digital Converter (ADC)
  • Five selectable internal voltage references: 0.55V, 1.1V, 1.5V, 2.5V, and 4.3V
  • CRC code memory scan hardware
    • Optional automatic scan after reset
  • Watchdog Timer (WDT) with Window Mode, with separate on-chip oscillator
  • External interrupt on all general purpose pins
• I/O and Packages: 41 programmable I/O lines, 48-pin UQFN 6×6 and TQFP 7×7
• Temperature Range: -40℃ to 125℃
• Speed Grades: 0 - 5 MHz @ 1.8V – 5.5V, 0 - 10 MHz @ 2.7V – 5.5V, 0 - 20 MHz @ 3.5V - 5.5V, -40℃ to 105℃