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Product Detailed Parameters
- Description：IC MCU 8BIT 32KB FLASH 28SOIC
- Series：AVR® DD
- Mfr：Microchip Technology
- Package：Tube
- 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：22
- 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 19x12b SAR; D/A 1x10b
- Oscillator Type：External, Internal
- Operating Temperature：-40°C ~ 85°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 AVR32DD28-I/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 1.8V to 5.5V and supports Multi-Voltage I/O (MVIO). Key peripherals include a 12-bit ADC, 10-bit DAC, Zero-Cross Detector, two USARTs, SPI, TWI/I2C, and Configurable Custom Logic.
Feature Summary
- Multi-Voltage I/O (MVIO) capability on PORT C for level shifting between different power domains
- Configurable Custom Logic (CCL) with four Look-up Tables for advanced digital peripheral functions
- Event System (EVSYS) enabling CPU-independent inter-peripheral signaling
- Automated CRC Flash memory scan for data integrity verification
Applications
- Industrial control systems requiring robust noise immunity
- Smart home appliances utilizing MVIO for mixed-voltage communication
- IoT devices needing low-power operation and event-driven processing
- Real-time control applications using PWM and waveform generation
Procurement Notes
Verify the package style 'SO' corresponds to SOIC-28 and temperature grade 'I' indicates industrial range (-40°C to +85°C). Confirm that the ordering suffix does not imply tape and reel packaging, as standard tubes are typical for this designation unless specified otherwise. Ensure compatibility with UPDI programming interfaces.
Selection Notes
Select this component when vertical migration within the AVR DD family is required without code modification. It is suitable for designs needing multi-voltage I/O support or specific analog features like ZCD and differential ADC. Consider the 28-pin footprint and available GPIO count against application constraints.
Part Context
This part belongs to the AVR DD family, which offers pin and feature compatibility across variants. It shares architecture with AVR16DD28 and AVR64DD28 models, allowing for easy scaling of memory resources while maintaining identical pinouts and peripheral sets.
Replacement Considerations
AVR32DD28T-I/SO: Identical electrical specifications; differs only in tape and reel packaging format.
FAQ
Does the AVR32DD28-I/SO support simultaneous host and client operation on its TWI interface?
Yes, the TWI/I2C interface can operate simultaneously as both host and client on different pins.
What is the maximum operating frequency of the AVR CPU in this device?
The AVR CPU runs at clock speeds up to 24 MHz.
Can the user row be programmed while the device is locked?
Yes, the 32B user row in nonvolatile memory can be programmed while the device is locked and retains data during chip erase.
