ATmega4808/4809 Data Sheet
■The ATmega4808/4809 microcontrollers are part of the megaAVR® 0-series, which uses the AVR® processor with hardware multiplier running at up to 20 MHz, and offers a wide range of Flash sizes up to 48 KB, up to 6 KB of SRAM, and 256 bytes of EEPROM in 28-, 32-, 40-, or 48-pin packages. 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 in this data sheet offer 48 KB in a 28/32/40/48-pin package.
●megaAVR® 0-series Overview
■The figure below shows the megaAVR® 0-series devices, laying out pin count variants and memory sizes:
▲Vertical migration is possible without code modification, as these devices are fully pin and feature compatible
▲Horizontal migration to the left reduces the pin count and, therefore, the available features
●Features
■AVR® CPU:
▲Single-cycle I/O access
▲Two-level interrupt controller
▲Two-cycle hardware multiplier
■Memories:
▲48 KB In-system self-programmable Flash memory
▲256B EEPROM
▲6 KB SRAM
▲Write/Erase endurance:
◆Flash 10,000 cycles
◆EEPROM 100,000 cycles
▲Data retention: 40 years at 55°C
■System:
▲Power-on Reset (POR) circuit
▲Brown-out Detector (BOD)
▲Clock options:
◆16/20 MHz low-power internal oscillator
◆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)
▲Three sleep modes:
◆Idle with all peripherals running for immediate wake-up
◆Standby
▲Configurable operation of selected peripherals
▲SleepWalking peripherals
■Power-Down with limited wake-up functionality
■Peripherals:
▲One 16-bit Timer/Counter type A (TCA) with a dedicated period register and three compare channels
▲Up to four 16-bit Timer/Counters type B (TCB) with input capture
▲One 16-bit Real-Time Counter (RTC) running from an external crystal or an internal RC oscillator
▲Up to four USARTs with fractional baud rate generator, auto-baud, and start-of-frame detection
▲Master/slave Serial Peripheral Interface (SPI)
▲Master/slave TWI with dual address match
◆Can operate simultaneously as master and slave
◆Standard mode (Sm, 100 kHz)
◆Fast mode (Fm, 400 kHz)
◆Fast mode plus (Fm+, 1 MHz)
▲Event System for core independent and predictable inter-peripheral signaling
▲Configurable Custom Logic (CCL) with up to four programmable Look-up Tables (LUT)
▲One Analog Comparator (AC) with a 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 CRC scan before code execution is allowed
▲Watchdog Timer (WDT) with Window mode, with a separate on-chip oscillator
▲External interrupt on all general purpose pin
■I/O and Packages:
▲Up to 41 programmable I/O lines
▲28-pin SSOP
▲32-pin VQFN 5x5 and TQFP 7x7
▲40-pin PDIP
▲48-pin UQFN 6x6 and TQFP 7x7
■Temperature Ranges:
▲Industrial: -40°C to +85°C
▲Extended: -40°C to +125°C
■Speed Grades -40°C to +105°C:
▲0-5 MHz @ 1.8V – 5.5V
▲0-10 MHz @ 2.7V – 5.5V
▲0-20 MHz @ 4.5V – 5.5V
■Speed Grades -40°C to +125°C:
▲0-8 MHz @ 2.7V - 5.5V
▲0-16 MHz @ 4.5V - 5.5V
■VAO variants available: Designed, manufactured, tested, and qualified in accordance with AEC-Q100requirements for automotive applications
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ATmega4808 、 ATmega4809 、 megaAVR® 0-series 、 ATmega4809-MFR-VAO 、 ATmega808 、 ATmega809 、 ATmega1608 、 ATmega1609 、 ATmega3208 、 ATmega3209 |
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Datasheet |
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Please see the document for details |
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SSOP;VQFN;TQFP;PDIP;UQFN |
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English Chinese Chinese and English Japanese |
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01/2020 |
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Rev.A |
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DS40002173A |
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3.9 MB |
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