AVR64DD32-I/PT | MULTI-VOLTAGE I/O Microchip Integrated Circuit (Quad Flat Packages) In Stock
Microchip AVR64DD32 is an 8-bit AVR microcontroller with 64KB flash, 8KB SRAM, and 32 pins. It operates at up to 24 MHz with multi-voltage I/O (MVIO), 12-bit ADC, DAC, ZCD, 2x UART, SPI, and TWI interfaces. Available for worldwide shipping from stock.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 32
- Lifecycle
- ACTIVE
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Multi-Voltage I/O (MVIO) enables direct interfacing with 1.8V, 3.3V, and 5V logic domains without level shifters
- 12-bit ADC with up to 22 channels delivers high-resolution analog sensing for precision measurement applications
- Integrated ZCD (Zero-Cross Detector) and DAC enable advanced analog control loops in motor and power applications
Applications
The AVR64DD32 targets embedded control applications requiring mixed-voltage interfacing, such as industrial sensor nodes and smart home devices that bridge 3.3V microcontroller cores to 5V legacy peripherals. Its 24 MHz AVR core combined with UART, SPI, and TWI makes it suitable for IoT edge nodes, low-power data loggers, and motor control units. The MVIO feature simplifies board design in battery-powered wearables and portable instruments where multiple supply rails coexist.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for AVR64DD32-I/PT | MULTI-VOLTAGE I/O:
64KB, 8KB RAM, 32p, 24MHz, MVIO, 12b ADC, ZCD, DAC, 2xUART, SPI, TWI
Frequently Asked Questions
What clock speed and flash memory does the AVR64DD32 provide for real-time control tasks?
The AVR64DD32 runs at up to 24 MHz with 64KB of flash memory and 8KB of SRAM, giving it sufficient headroom for real-time sensor fusion, PID control loops, and communication stacks without external memory.
How does the MVIO feature on AVR64DD32 simplify mixed-voltage PCB designs?
MVIO allows selected I/O pins to operate at a different voltage than the core, supporting 1.8V, 3.3V, and 5V logic levels simultaneously. This eliminates external level-shifter ICs, reducing BOM cost and board space in designs that mix 5V legacy sensors with a 3.3V microcontroller core.
Which communication interfaces does the AVR64DD32 support for connecting to external peripherals?
The device integrates 2x UART, 1x SPI, and 1x TWI (I2C-compatible) interfaces, making it straightforward to connect to displays, sensors, and wireless modules. All interfaces are accessible on the 32-pin TQFP package, covering typical embedded connectivity needs across 3.3V and 5V systems.
When is the AVR64DD32 a better fit than a larger 64-pin AVR device for cost-sensitive designs?
For applications needing fewer than 26 GPIO lines but requiring MVIO and a 12-bit ADC, the AVR64DD32 in a compact 32-pin TQFP package reduces PCB size and unit cost compared to 64-pin alternatives, while still delivering 24 MHz performance and full peripheral integration.
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