ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC MCU 8BIT 32KB FLASH 28SSOP
- Series：AVR® DA
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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：Surface Mount
- Supplier Device Package：28-SSOP
- Package / Case：28-SSOP (0.209", 5.30mm Width)
- Grade：-
- Qualification：-
Download product information
Overview
The AVR32DA28T-I/SS is an 8-bit microcontroller from the AVR DA family, featuring a 24 MHz AVR CPU with hardware multiplier. It includes 32 KB of Flash memory, 4 KB of SRAM, and 512 B of EEPROM. The device operates within a voltage range of 1.8 V to 5.5 V and supports industrial temperatures (-40°C to +85°C). Key peripherals include a 12-bit ADC, DAC, three analog comparators, two zero-cross detectors, PTC, CCL, USART, SPI, TWI, and UPDI. It is housed in a 28-pin SSOP package.
Feature Summary
- Integrates intelligent analog features including a Peripheral Touch Controller (PTC) and Configurable Custom Logic (CCL) for flexible system design.
- Provides secure firmware upgrade capabilities through Program and Debug Interface Disable (PDID) and cryptographic key validation.
- Supports low-power operation with multiple sleep modes and auto-tuning internal oscillators for improved accuracy.
Applications
- Industrial control systems requiring robust security and analog processing
- Smart energy metering applications utilizing touch interfaces and power monitoring
- Consumer appliances needing efficient motor control via zero-cross detection
Procurement Notes
Verify the specific ordering suffix 'T' indicates tape and reel packaging when sourcing components. Confirm that the 'I' suffix corresponds to the industrial temperature range required for your application environment. Ensure compatibility with the 28-pin SSOP footprint during PCB layout verification.
Selection Notes
Select this component for designs requiring vertical migration within the AVR DA family without code modification. Consider the integrated PTC and CCL if complex logic or touch sensing is needed. Verify that the 32 KB Flash capacity meets the firmware size requirements compared to larger variants like the AVR64DA28.
Part Context
This part belongs to the AVR DA(S) family, which shares pin and feature compatibility across different pin counts and memory sizes. It utilizes the latest Microchip technologies for low-power architecture. The device is designed for easy migration within the family, allowing designers to scale features based on project needs.
Replacement Considerations
AVR32DA28-I/SS serves as a direct non-reel replacement variant within the same package and specification profile.
FAQ
What is the maximum operating frequency of the AVR32DA28T-I/SS?
The device runs at up to 24 MHz using the High-Precision internal high-frequency Oscillator (OSCHF).
Does this microcontroller support capacitive touch sensing?
Yes, it includes a Peripheral Touch Controller (PTC) supporting self-capacitance and mutual capacitance channels for buttons, sliders, and wheels.
How does the PDID feature enhance security?
PDID prevents access to the reprogrammable Flash memory over the UPDI after activation, protecting against remote attacks and ensuring only authenticated software updates can be applied via the Boot Code section.
