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Product Detailed Parameters
- Description：IC MCU 8BIT 32KB FLASH 20VFQFN
- Series：AVR® DD
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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：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 AVR32DD20T-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 extended temperature range of -40°C to +125°C. Key peripherals include a 12-bit ADC with 13 channels, a 10-bit DAC, two USARTs, SPI, TWI, and Multi-Voltage I/O (MVIO). It is housed in a 20-pin VFQFN package.
Feature Summary
- Supports Multi-Voltage I/O (MVIO) on PORTC for flexible voltage interfacing
- Includes intelligent analog features such as a 12-bit differential ADC and Zero-Cross Detector
- Features an Event System for CPU-independent inter-peripheral signaling
- Provides automated Cyclic Redundancy Check (CRC) Flash memory scan
Applications
- Industrial control systems requiring robust peripheral interfaces
- Smart energy metering applications utilizing MVIO capabilities
- Low-power embedded devices operating across extended temperature ranges
- Automotive sensor nodes compatible with varying voltage domains
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure the component matches the required pinout and memory configuration for your design. Cross-reference the part number with official Microchip documentation to validate availability and revision status before finalizing procurement plans.
Selection Notes
Select this variant when extended temperature operation up to 125°C is required alongside Multi-Voltage I/O support. Consider the 20-pin VFQFN package constraints for PCB layout. Evaluate the 13-channel ADC resolution and event system capabilities against application signal processing needs. Confirm that the 32 KB Flash size meets program storage requirements.
Part Context
This component belongs to the AVR DD family, which emphasizes low power consumption and advanced digital peripherals. The family offers vertical migration compatibility without code modification between different memory sizes and pin counts. The AVR32DD20 specifically targets applications needing a balance of processing speed, analog precision, and flexible I/O configurations.
Replacement Considerations
AVR32DD20T-I/REB provides identical functionality with industrial temperature range (-40°C to +85°C). AVR32DD20T-E/SO offers the same electrical characteristics in a SOIC-20 package. Verify pin compatibility and thermal performance when substituting these variants.
