Microchip Technology AVR64DD32/28 8-Bit Multi-Voltage I/O MCUs

Microchip Technology AVR64DD32/28 8-Bit Multi-Voltage I/O MCUs are based on the AVR® CPU with a hardware multiplier running at clock speeds up to 24MHz across the full supply voltage range of 1.8V to 5.5V. The family includes 16KB, 32KB, and 64KB Flash variants in 14- to 32-pin package options (TQFP and VQFN). The AVR® DD family is designed to bring real-time control and multi-voltage operation to applications, including industrial control, home appliance products, automotive, and the Internet of Things (IoT).

The AVR64DD32/28 devices use the Core Independent Peripherals with low-power features and 5V operation for increased noise immunity. The Multi-Voltage I/O system allows safe bi-directional communication with systems running at different voltages. The Event System, Configurable Custom Logic (CCL), and intelligent analog peripherals [12-bit differential ADC, Zero-Cross Detect (ZCD), 10-bit DAC] together with the MVIO make the AVR® DD components well suited for sensor applications, IoT end nodes, and other applications where signal conditioning or level-shifting is needed.

AVR64DD32/28 comes in TQFP and VQFN package options running at up to 24MHz and with 64KB Flash, 8KB SRAM, and 256B of EEPROM. The devices support four Multi-Voltage I/O channels capable of bi-directional communication with external devices running at a higher or lower voltage than the MCU itself. The MVIO system makes the AVR64DD32 a perfect device for board control, sensor applications, IoT end nodes, and other size-constrained applications, and for sensor fusion in larger systems.

Features

Functional Safety
- IEC 60730 Class B library (UL certified)
- ISO 26262 FMEDA
High-performance AVR RISC CPU with hardware multiplier
- Up to 24MHz
- External high-frequency oscillator
- Single cycle I/O access
- Two-level interrupt controller
- Idle, Standby, and Power-Down sleep modes
- Multi-Voltage I/O (MVIO)
- Event System (EVSYS)
- Configurable Custom Logic (CCL)
- Single-pin programming and debugging interface (UPDI)
Memory
- Up to 64KB self-programmable Flash memory
- Up to 8KB SRAM
- 256B EEPROM
Analog features
- 12-bit differential Analog-to-Digital Converter (ADC)
- 10-bit Digital-to-Analog Converter (DAC) with output buffer
- Zero-Cross Detector (ZCD)
- Analog comparator

Timers and counters
- Timer/Counter type A (TCA)
- Timer/Counter type B (TCB)
- Timer/Counter type D (TCD) for control applications
Communications
- USART
- SPI
- I²C
Built-in safety functions
- Clock Failure Detection (CFD)
- Power-On Reset (POR)
- Brown-Out-Detection (BOD)
- Voltage Level Monitor (VLM)
- Cyclic Redundancy Check (CRC) Scan
- Window Watchdog Timer with Window Mode (WWDT)
Package options
- VQFN-32
- TQFP-32
- SPDIP-28
- SSOP-28
- SOIC-28
- VQFN-28

Applications

Industrial control
Home appliance products

Automotive
Internet of Things (IoT)

Specifications

1.8V to 5.5V operating voltage range
14- to 32-pin count TQFP and VQFN packages
Flash program memory type
64KB program memory size
24MIPS/DMIPS CPU speed

256 bytes of data EEPROM
1x ADC with 23x ADC channels
12 bits maximum ADC resolution
1x comparator
-40°C to +125°C temperature range

Videos

Block Diagram

Resources

Fact Sheet
Product Brief