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Product Detailed Parameters
- Description：32KB,4KB,32P,24 MHZ,PDID,12B ADC
- Series：AVR® DA
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- 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, Wettable Flank
- Supplier Device Package：32-VQFN (5x5)
- Package / Case：32-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The AVR32DA32ST-I/QZB is an 8-bit microcontroller from Microchip Technology, featuring a 32 KB program memory and 4 KB RAM. It utilizes a VQFN package with 32 pins and supports a maximum clock frequency of 24 MHz. The device includes a 12-bit ADC, three comparators, a Programmable Digital Interface (PDID), Peripheral Touch Controller (PTC), three Zero-Crossing Detectors (ZCD), a DAC, multiple UARTs, SPI, and TWI interfaces. Operating voltage ranges from 1.8 V to 5.5 V, with a temperature range of -40°C to 85°C.
Feature Summary
- Integrates a Programmable Digital Interface (PDID) for flexible peripheral configuration.
- Includes a Peripheral Touch Controller (PTC) supporting capacitive touch sensing applications.
- Features three Zero-Crossing Detectors (ZCD) for AC line monitoring and control.
- Provides high-resolution analog capabilities with a 12-bit ADC and integrated DAC.
Applications
- Capacitive touch interface designs requiring low power consumption.
- AC mains monitoring systems utilizing zero-crossing detection.
- Embedded control applications needing flexible digital peripheral interconnects.
- General-purpose 8-bit MCU implementations in compact VQFN packages.
Procurement Notes
Verify the specific suffix 'ST' against official Microchip documentation to confirm tape-and-reel packaging status, as standard datasheets may list tray options. Ensure the operating temperature grade matches your environmental requirements. Cross-reference the exact part number with the manufacturer's current product status page to confirm availability and lifecycle stage before finalizing procurement plans.
Selection Notes
Select this component when a compact 32-pin VQFN footprint is required alongside advanced analog features like ZCD and PTC. It is suitable for designs needing flexible digital interconnects via PDID without external logic. Consider the 24 MHz performance limit and 12-bit ADC resolution for precision requirements. Evaluate pin count sufficiency for I/O needs compared to larger DA series variants.
Part Context
This part belongs to the AVR32DA family, designed for low-power embedded applications. It shares architectural similarities with other AVR32DA devices but offers specific pin counts and peripheral combinations. The DA series emphasizes flexibility through its Programmable Digital Interface, allowing customized peripheral routing within the 8-bit AVR core ecosystem.
Replacement Considerations
Direct substitutes include other AVR32DA variants with compatible pinouts and memory sizes, such as AVR32DA28 or AVR32DA48, provided peripheral sets align. Check datasheets for electrical compatibility and software library support. No direct cross-family replacements are officially confirmed without significant design adaptation.
