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Product Detailed Parameters
- Description：IC MCU 8BIT 64KB FLASH 64VQFN
- Series：AVR® DB
- Mfr：Microchip Technology
- Package：Tray
- Core Processor：AVR
- Core Size：8-Bit
- Speed：24MHz
- Connectivity：I2C, SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：54
- Program Memory Size：64KB (64K x 8)
- Program Memory Type：FLASH
- EEPROM Size：512 x 8
- RAM Size：8K x 8
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
- Data Converters：A/D 22x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：64-VQFN (9x9)
- Package / Case：64-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The AVR64DB64-E/MR is an 8-bit microcontroller from the AVR DB family, featuring a 64 KB Flash memory, 8 KB SRAM, and 512 B EEPROM. It operates at clock speeds up to 24 MHz with a supply voltage range of 1.8 V to 5.5 V. The device includes a 12-bit differential ADC with 22 channels, three analog comparators, three op amps, and a 10-bit DAC. It offers up to 55/54 programmable I/O pins in a VQFN64 package (MR suffix) and supports extended temperature operation (-40°C to +125°C).
Feature Summary
- Multi-Voltage I/O (MVIO) on Port C allows for selectable input voltage thresholds.
- Configurable Custom Logic (CCL) provides up to six programmable Look-up Tables (LUTs).
- Event System enables CPU-independent and predictable inter-peripheral signaling.
- Automated Cyclic Redundancy Check (CRC) scan ensures Flash program memory integrity.
Applications
- Industrial control systems requiring robust peripheral integration.
- Home appliances utilizing multi-voltage interface capabilities.
- IoT devices needing low-power architecture and event-driven processing.
- Power control applications optimized by the 12-bit PWM Timer/Counter type D.
Procurement Notes
Verify that the ordering suffix 'E' confirms the extended temperature range (-40°C to +125°C) and 'MR' specifies the VQFN64 package style. Ensure compatibility with the AVR DB family pinout if migrating from other variants like AVR64DB48 or AVR64DB32. Confirm that the specific revision DS40002300B matches your design requirements.
Selection Notes
Select this component when 64 KB of Flash and 22 ADC channels are required within a compact VQFN64 footprint. The extended temperature rating makes it suitable for harsh environments compared to industrial-rated counterparts. Consider the MVIO feature if interfacing with mixed-voltage logic levels without external level shifters.
Part Context
This part belongs to the AVR64DB28/32/48/64 series, which shares vertical migration compatibility. It utilizes the AVR CPU with a hardware multiplier and supports single-cycle I/O register access. The device is designed for flexible, low-power applications with advanced digital peripherals and accurate analog subsystems.
Replacement Considerations
AVR64DB48-E/MR: Offers identical core features but with fewer pins and ADC channels. AVR64DB64-I/MR: Same package and features but limited to industrial temperature range (-40°C to +85°C). AVR128DB64-E/MR: Provides double the Flash and SRAM capacity while maintaining pin compatibility.
