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Product Detailed Parameters
- Description：IC MCU 8BIT 32KB FLASH 28SSOP
- Series：AVR® DB
- 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：21
- 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 9x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 125°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 AVR32DB28-E/SS is an 8-bit microcontroller from the AVR DB family, featuring a 24 MHz AVR CPU with hardware multiplier. It includes 32 KB Flash, 4 KB SRAM, and 512 B EEPROM in a 28-pin SSOP package. The device supports a supply voltage range of 1.8 V to 5.5 V and operates within an extended temperature range of -40°C to +125°C. Key peripherals include a 12-bit ADC, three analog comparators, one DAC, and Multi-Voltage I/O (MVIO).
Feature Summary
- Multi-Voltage I/O (MVIO) capability on Port C for flexible interface integration.
- Configurable Custom Logic (CCL) utilizing Look-up Tables for custom digital logic implementation.
- Event System enabling CPU-independent inter-peripheral signaling.
- Automated CRCSCAN for cyclic redundancy check program memory verification.
Applications
- Industrial control systems requiring robust peripheral interfaces.
- Consumer electronics operating under variable power conditions.
- Embedded applications needing precise analog signal processing via MVIO.
Procurement Notes
Verify the specific ordering suffix 'E' confirms the extended temperature rating (-40°C to +125°C) and 'SS' denotes the SSOP-28 package. Confirm that the datasheet revision matches the required design specifications. Ensure compatibility with existing UPDI programming tools for development and production flashing.
Selection Notes
Select this component when vertical migration within the AVR DB family is required without code modification. Choose this model if the application demands Multi-Voltage I/O support or requires the specific pin count and peripheral mix available in the 28-pin variant compared to larger packages.
Part Context
This part belongs to the AVR32DB series, which shares architectural features with the AVR64DB and AVR128DB families. These devices offer horizontal and vertical migration paths, allowing designers to scale pin counts and memory sizes while maintaining software compatibility across the platform.
Replacement Considerations
AVR32DB28-I/SS serves as the industrial temperature rated alternative within the same package.
FAQ
What is the maximum clock frequency supported by the AVR32DB28-E/SS?
The device supports a maximum clock frequency of 24 MHz.
Does the AVR32DB28-E/SS support simultaneous host and client operation on TWI?
Yes, the TWI/I2C peripheral can operate simultaneously as a host and client on different pins.
How many General Purpose I/O pins are available on this device?
The device provides up to 22 programmable General Purpose I/O pins.
