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Product Detailed Parameters
- Description：IC MCU 8BIT 64KB FLASH 64VQFN
- Series：AVR® DB
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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 ~ 85°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 AVR64DB64T-I/MR is an 8-bit microcontroller from the AVR DB family, featuring a hardware multiplier and operating at clock speeds up to 24 MHz. It includes 64 KB of Flash memory, 8 KB of SRAM, and 512 bytes of EEPROM. The device is housed in a VQFN64 package with 55/54 programmable I/O pins. Key peripherals include a 12-bit differential ADC with 22 channels, three analog comparators, three op amps, and multiple communication interfaces such as USART, SPI, and TWI.
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 for custom digital logic.
- 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
- Smart home appliances utilizing multi-voltage interface capabilities
- IoT devices needing low-power operation and event-driven processing
Procurement Notes
Verify that the ordering suffix 'MR' corresponds to the VQFN64 package and 'T' indicates tape and reel carrier type. Confirm the 'I' suffix denotes the industrial temperature range of -40°C to +85°C. Ensure compatibility with existing PCB footprints for the 9x9 mm VQFN form factor before finalizing procurement orders.
Selection Notes
Select this component when vertical migration within the AVR DB family is required without code modification. It is suitable for applications needing high pin counts and extensive analog peripherals like multiple op amps and ZCDs. Consider the VQFN64 package if space constraints favor surface-mount technology over TQFP options.
Part Context
This part belongs to the AVR64DB28/32/48/64 series, which shares architectural compatibility across pin counts. The AVR64DB64 variant offers the highest I/O count and peripheral density within the 64 KB Flash segment of the DB family, supporting horizontal and vertical migration strategies.
Replacement Considerations
AVR64DB64-E/MR serves as the extended temperature range alternative. AVR128DB64 variants offer increased memory but maintain pin compatibility. Verify package dimensions against AVR64DB64T-I/PT (TQFP) if lead-free or different mounting styles are required.
