AVR64DB28/32/48/64
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AVR DB Family
Introduction
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The AVR64DB28/32/48/64 microcontrollers of the AVR DB family of microcontrollers are using the AVR CPU with
hardware multiplier running at clock speeds up to 24 MHz. They come with 64 KB of Flash, 8 KB of SRAM, and
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512 bytes of EEPROM. The microcontrollers are available in 28-, 32-, 48- and 64- pin packages. The AVR DB
family uses the latest technologies from Microchip with a flexible and low-power architecture, including Event System,
accurate analog subsystems, and advanced digital peripherals.
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AVR DB Family Overview
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The figure below shows the AVR DB devices, laying out pin count variants and memory sizes:
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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.
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Figure 1.ꢀAVR DB Family Overview
Devices described in this data sheet
Devices described in other data sheets
Flash
128 KB
64 KB
32 KB
AVR128DB28
AVR64DB28
AVR128DB32
AVR64DB32
AVR128DB48
AVR128DB64
AVR64DB64
AVR64DB48
AVR32DB28
28
AVR32DB32
32
AVR32DB48
48
Pins
64
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The name of a device in the AVR DB family is decoded as follows:
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Figure 2.ꢀAVR DB Device Designations
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64 /
T E MR
64
AVR
DB
Package Style
Flash size in KB
MR = VQFN64
6LX = VQFN48
RXB = VQFN32
PT = TQFP
Family
SS = SSOP
SO = SOIC
SP = SPDIP
Pin count
Temperature Range
I = -40°C to +85°C (Industrial)
E = -40°C to +125°C (Extended)
Carrier Type
T = Tape & Reel
Blank = Tube or Tray
DS40002300A-page 1
Advance Information Datasheet
© 2021 Microchip Technology Inc.