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Product Detailed Parameters
- Description：IC MCU 8BIT 32KB FLASH 20VFQFN
- Series：AVR® DD
- Mfr：Microchip Technology
- Package：Tray
- Core Processor：AVR
- Core Size：8-Bit
- Speed：24MHz
- Connectivity：I2C, IrDA, LINbus, RS-485, 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 SAR; D/A 1x10b
- Oscillator Type：External, Internal
- Operating Temperature：-40°C ~ 125°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-E/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 an industrial temperature range of -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
- Supports multi-voltage I/O operation on PORT C for flexible interfacing
- Integrates intelligent analog features including a 12-bit differential ADC and zero-cross detector
- Enables CPU-independent peripheral signaling via the Event System
- Provides advanced digital peripherals such as Configurable Custom Logic look-up tables
Applications
- Industrial control systems requiring real-time processing
- Smart home appliances with mixed-signal requirements
- IoT sensor nodes utilizing low-power sleep modes
- Automotive instrumentation operating in extended temperature ranges
Procurement Notes
Verify the specific ordering suffix matches the required package style and temperature grade. Confirm that the 'E' designation corresponds to the extended temperature range if applicable, though datasheet decoding indicates 'I' for industrial and 'E' for extended. Ensure compatibility with existing design constraints regarding pin count and memory size before finalizing procurement orders.
Selection Notes
Select this component when a balance of moderate memory capacity and rich peripheral integration is needed. The 20-pin form factor suits space-constrained designs. Consider the AVR32DD20 series for applications requiring MVIO flexibility and precise analog signal acquisition without needing the higher memory density of the 64 KB variants.
Part Context
This part belongs to the AVR DD family, which emphasizes vertical migration capabilities without code modification. It shares architectural similarities with the AVR64DD series but offers reduced memory resources tailored for cost-sensitive applications. The family utilizes a unified program and debug interface for simplified development workflows.
Replacement Considerations
AVR32DD20-I/REB serves as a direct functional substitute with identical specifications but differs only in the specified industrial temperature range classification.
