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Product Detailed Parameters
- Description：32KB,4KB,32P,24 MHZ,PDID,12B ADC
- Series：AVR® DA
- Mfr：Microchip Technology
- Package：Tray
- Core Processor：AVR
- Core Size：8-Bit
- Speed：24MHz
- Connectivity：CANbus, I2C, SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：26
- 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 14x12b SAR; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：32-TQFP (7x7)
- Package / Case：32-TQFP
- Grade：-
- Qualification：-
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Overview
The AVR32DA32S-I/PT is an 8-bit microcontroller from the AVR DA(S) family, featuring a 32 KB Flash memory, 4 KB SRAM, and 512B EEPROM. It operates at up to 24 MHz with a supply voltage range of 1.8V to 5.5V. The device includes a 12-bit differential ADC with 14 channels, three analog comparators, one 10-bit DAC, and three zero-cross detectors. It supports TWI/I2C, SPI, and USART interfaces via a single-pin UPDI for programming and debugging.
Feature Summary
- Features a Peripheral Touch Controller (PTC) supporting self-capacitance and mutual capacitance channels for touch applications.
- Includes Configurable Custom Logic (CCL) with programmable Look-up Tables for hardware-based logic implementation.
- Provides Program and Debug Interface Disable (PDID) functionality to secure firmware against unauthorized access.
- Integrates an Event System for CPU-independent inter-peripheral signaling.
Applications
- Industrial control systems requiring real-time processing
- Smart home appliances with capacitive touch interfaces
- IoT devices needing secure firmware updates
- Battery-powered equipment utilizing low-power sleep modes
Procurement Notes
Verify that the ordering suffix 'S' indicates the presence of the PDID security feature. Confirm the package style 'PT' corresponds to TQFP. Ensure the temperature grade 'I' matches industrial requirements. Cross-reference the datasheet DS40002233 for specific pinout details.
Selection Notes
Select this model if 32 KB Flash and 4 KB SRAM are sufficient for the application. Choose this variant over the 64 KB version to optimize cost or board space. Verify that the 32-pin TQFP package fits the design constraints. Check peripheral availability against the specific pin count limitations.
Part Context
This component belongs to the AVR DA(S) family, which offers vertical migration compatibility within the series. It shares architectural similarities with the AVR64DA and AVR128DA families but provides lower memory density. The device utilizes the same core peripherals as larger variants in the family.
Replacement Considerations
AVR32DA32-I/PT serves as a direct substitute without the PDID feature. AVR64DA32S-I/PT offers increased memory while maintaining pin compatibility. AVR128DA32S-I/PT provides higher storage capacity with identical interface support.
