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Product Detailed Parameters
- Description：IC MCU 8BIT 32KB FLASH 28SOIC
- 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：28-SOIC
- Package / Case：28-SOIC (0.295", 7.50mm Width)
- Grade：-
- Qualification：-
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Overview
The AVR32DD20T-E/SO 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/I2C, and Multi-Voltage I/O (MVIO). It is housed in a 20-pin SOIC package.
Feature Summary
- AVR CPU running at up to 24 MHz with single-cycle I/O access
- Multi-Voltage I/O (MVIO) on PORT C for flexible voltage interfacing
- Integrated 12-bit differential ADC and 10-bit DAC for analog applications
- Event System for CPU-independent inter-peripheral signaling
Applications
- Industrial control systems requiring extended temperature operation
- Sensor interfaces utilizing MVIO and high-resolution ADC
- Communication nodes using dual USART and Event System
- Power monitoring circuits leveraging ZCD and AC features
Procurement Notes
Verify the ordering suffix 'E' confirms the extended temperature range (-40°C to +125°C) and 'SO' indicates the SOIC-20 package. Confirm the 'T' suffix denotes tape and reel packaging if required for automated assembly. Ensure compatibility with the AVR DD family pinout and peripheral configuration before finalizing procurement specifications.
Selection Notes
Select this component when extended temperature performance is mandatory alongside standard AVR DD family features. Compare against AVR32DD20T-I/SO if industrial temperature range (-40°C to +85°C) suffices. Consider pin count and peripheral availability relative to AVR32DD28 or AVR32DD32 variants if additional I/O or memory is needed.
Part Context
This part belongs to the AVR DD family, which offers vertical migration compatibility without code modification. It shares architectural similarities with AVR64DD and AVR16DD series devices but provides specific memory and pin configurations tailored for cost-sensitive applications requiring robust analog and digital peripherals.
Replacement Considerations
AVR32DD20T-I/SO serves as a direct substitute for industrial temperature requirements. For higher memory capacity, consider AVR64DD20T-E/SO. For increased I/O, evaluate AVR32DD28T-E/SO.
