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Product Detailed Parameters
- Description：IC MCU 8BIT 32KB FLASH 28SPDIP
- Series：AVR® DA
- 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：23
- Program Memory Size：32KB (32K x 8)
- Program Memory Type：FLASH
- EEPROM Size：512 x 8
- RAM Size：4K x 8
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
- Data Converters：A/D 10x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Supplier Device Package：28-SPDIP
- Package / Case：28-DIP (0.300", 7.62mm)
- Grade：-
- Qualification：-
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Overview
The AVR32DA28-I/SP is an 8-bit microcontroller from the AVR DA family, featuring a 24 MHz CPU with hardware multiplier. It includes 32 KB Flash, 4 KB SRAM, and 512 B EEPROM. The device operates between 1.8 V and 5.5 V within -40°C to +85°C. Key peripherals include a 12-bit ADC, DAC, three analog comparators, two zero-cross detectors, and a Peripheral Touch Controller. It utilizes a single-pin UPDI for programming and debugging.
Feature Summary
- Supports vertical migration without code modification across the AVR DA(S) family due to full pin and feature compatibility.
- Integrates intelligent analog features including a differential ADC with programmable gain amplifier and multiple voltage references.
- Provides advanced digital peripherals such as Configurable Custom Logic (CCL) and an Event System for predictable inter-peripheral signaling.
Applications
- Industrial control systems requiring robust peripheral integration
- Consumer electronics utilizing capacitive touch interfaces via PTC
- Power control applications leveraging TCD and zero-cross detection
Procurement Notes
Verify the specific package style suffix 'SP' corresponds to SPDIP-28 when ordering. Confirm that the '-I' designation matches the required industrial temperature range of -40°C to +85°C for your application environment. Ensure firmware development tools support the Unified Program and Debug Interface (UPDI).
Selection Notes
Select this component if a 28-pin through-hole solution is required for the AVR DA architecture. Consider higher pin counts or memory sizes only if additional I/O or storage exceeds the 23 available GPIOs or 32 KB Flash limit. Verify that the 1.8 V to 5.5 V operating range aligns with system power rails.
Part Context
This part belongs to the AVR DA(S) family, which combines the AVR CPU with hardware multipliers and low-power architectures. The series supports flexible migration paths, allowing designers to scale memory and pin counts while maintaining software compatibility. The DA family emphasizes intelligent analog capabilities and secure firmware management.
Replacement Considerations
AVR32DA28-E/SP offers extended temperature range (-40°C to +125°C). AVR64DA28-S/SP provides increased Flash/SRAM and PDID security features. AVR128DA28-S/SP offers larger memory capacity. All maintain pin compatibility within the 28-pin form factor.
