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Product Detailed Parameters
- Description：IC MCU 8BIT 32KB FLASH 20VQFN
- Series：AVR® DD
- 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：16
- Program Memory Size：32KB (32K x 8)
- Program Memory Type：FLASH
- EEPROM Size：256 x 8
- RAM Size：4K x 8
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
- Data Converters：A/D 13x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-VQFN (3x3)
- Package / Case：20-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The AVR32DD20-I/REB is an 8-bit microcontroller from the AVR DD family, featuring a 24 MHz AVR CPU with hardware multiplier. It includes 32 KB of Flash memory, 4 KB of SRAM, and 256 bytes of EEPROM. The device operates within a supply voltage range of 1.8 V to 5.5 V and supports industrial temperatures from -40°C to +85°C. Key peripherals include a 12-bit ADC with 13 channels, a 10-bit DAC, two USARTs, SPI, TWI/I2C, and Multi-Voltage I/O (MVIO). It is housed in a 20-pin VQFN package.
Feature Summary
- Multi-Voltage I/O (MVIO) capability on PORT C enables bidirectional communication across different power domains without external level shifters.
- Integrated Event System (EVSYS) allows for CPU-independent inter-peripheral signaling to reduce system latency.
- Configurable Custom Logic (CCL) provides four programmable Look-up Tables for custom digital logic implementation.
- Single-pin Unified Program and Debug Interface (UPDI) simplifies programming and debugging connections.
Applications
- Industrial control systems requiring real-time processing
- Smart home appliances with mixed-voltage interfaces
- IoT devices utilizing low-power sleep modes
- Automotive applications meeting functional safety standards
Procurement Notes
Verify the specific ordering suffix 'I/REB' against the manufacturer's current datasheet to confirm the package style (VQFN-20), temperature range (Industrial), and carrier type (Tape & Reel). Ensure compatibility with existing design constraints regarding pin count and peripheral availability before finalizing procurement.
Selection Notes
Select this component when a balance of moderate memory size and rich analog/digital peripherals is required. The 20-pin form factor suits space-constrained designs needing MVIO support. Consider vertical migration within the AVR DD family if future projects demand increased Flash or RAM while maintaining pin compatibility.
Part Context
This part belongs to the AVR DD family, which emphasizes low power consumption and intelligent analog features. The series offers vertical migration capabilities, allowing designers to upgrade memory sizes without modifying code or PCB layouts. It targets applications needing robust noise immunity and flexible I/O configurations.
Replacement Considerations
AVR32DD20T-I/REB: Identical electrical specifications and pinout; differs only in packaging format (Tape & Reel vs. Tube/Tray depending on original stock definition, though datasheet indicates REB is typically Tape & Reel variant or specific carrier). Verify exact carrier type requirements.
