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Product Detailed Parameters
- Description：32KB,ECC,2XCPU,20MHZ,ERRCTRL,MVI
- Series：*
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Core Processor：-
- Core Size：-
- Speed：-
- Connectivity：-
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- Number of I/O：-
- Program Memory Size：-
- Program Memory Type：-
- EEPROM Size：-
- RAM Size：-
- Voltage - Supply (Vcc/Vdd)：-
- Data Converters：-
- Oscillator Type：-
- Operating Temperature：-
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- Supplier Device Package：-
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Overview
The AVR32SD32T-I/QZB is an 8-bit microcontroller from Microchip Technology featuring the AVR core. It provides 32 kB of system-in-programmable Flash memory with ECC, 4 kB of SRAM with ECC, and 256 B of EEPROM with ECC. The device operates at a maximum clock frequency of 20 MHz and supports a supply voltage range of 2.7 V to 5.5 V. It includes a 10-bit ADC with 13 channels, three comparators, two zero-crossing detectors (ZCD), two watchdog timers (WDT), three USARTs, two SPI interfaces, and two TWI interfaces. The component is housed in a QFN-32 package and is rated for an industrial temperature range of -40°C to +85°C.
Feature Summary
- Dual-core lockstep CPU configuration for enhanced functional safety
- Single Error Correction and Double Error Detection (SECDED) ECC on Flash, SRAM, and EEPROM
- Integrated error controller (ERRCTRL) for robust system monitoring
- Programming and Debugging Interface Disable (PDID) for security
Applications
- Automotive safety systems compliant with ISO 26262 ASIL C
- Industrial automation equipment requiring IEC 61508 SIL 2 compliance
- Medical devices demanding high reliability and data integrity
- Consumer electronics with security-sensitive applications
Procurement Notes
Verify the specific suffix 'QZB' against official Microchip documentation to confirm package type and tape/reel specifications. Ensure the operating voltage and temperature ranges align with your design requirements. Confirm availability through authorized distributors as lead times may vary. Check for any recent Product Change Notifications (PCN) or Errata sheets relevant to this part number before finalizing procurement.
Selection Notes
Select this model when dual-core lockstep processing and hardware ECC are required for functional safety standards such as ASIL C. It is suitable for designs needing secure boot capabilities via PDID and extensive analog peripherals including multiple comparators and ZCDs. Consider the 20 MHz performance limit and 2.7 V minimum supply voltage when evaluating power and speed constraints relative to other AVR32 SD series variants.
Part Context
This component belongs to the AVR32 SD series, which integrates the AVR CPU with hardware multiplication capabilities. The series is designed for applications requiring high reliability and safety certification. It features flexible low-power architectures with event systems and advanced digital peripherals. The AVR32 SD family supports various pin counts and packages to accommodate different design complexities while maintaining consistent core functionality and safety features.
Replacement Considerations
Check Microchip's official cross-reference tools for direct replacements. Variants within the AVR32 SD series with different pin counts or package types may serve as alternatives if peripheral compatibility allows.
