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Product Detailed Parameters
- Description：IC MCU 8BIT 32KB FLASH 28SSOP
- 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：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-SSOP
- Package / Case：28-SSOP (0.209", 5.30mm Width)
- Grade：-
- Qualification：-
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Overview
The AVR32DD28T-I/SS is an 8-bit microcontroller from the AVR DD family, featuring a 28-pin SSOP package. It includes 32 KB of Flash memory, 4 KB of SRAM, and 256 bytes of EEPROM. The device operates at clock speeds up to 24 MHz with a supply voltage range of 1.8V to 5.5V. Key peripherals include a 12-bit ADC, 10-bit DAC, three USARTs, two SPI interfaces, and one TWI interface.
Feature Summary
- Multi-Voltage I/O (MVIO) capability on PORTC for flexible interfacing
- Integrated Event System for CPU-independent peripheral signaling
- Configurable Custom Logic (CCL) with four Look-up Tables
- Automated Cyclic Redundancy Check (CRC) scan for Flash memory
Applications
- Industrial control systems requiring multi-voltage operation
- Home appliance controllers
- IoT devices needing low-power architecture
- Automotive applications supporting ISO 26262 standards
Procurement Notes
Verify the 'T' suffix indicates Tape & Reel packaging rather than Tube or tray. Confirm the 'I' designation corresponds to the -40°C to +85°C industrial temperature range. Ensure the SSOP package style matches the required footprint. Cross-reference the datasheet DS40002315 for complete electrical specifications.
Selection Notes
Select this model for designs requiring vertical migration within the AVR DD family without code modification. Choose the 28-pin variant when specific pin counts and peripheral sets are needed. Consider the MVIO feature if interfacing with mixed-voltage logic levels is necessary. Verify that 32 KB of Flash meets the application's code storage requirements.
Part Context
This component belongs to the AVR DD family, which utilizes the latest Microchip technologies for flexible and low-power architectures. The family supports horizontal and vertical migration across different pin counts and memory sizes while maintaining pin and feature compatibility.
Replacement Considerations
AVR32DD28-I/SS serves as the tube-packaged equivalent. AVR64DD28T-I/SS offers increased memory capacity. AVR32DD20T-I/SS provides a smaller 20-pin option.
