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Product Detailed Parameters
- Description：32KB,ECC,2XCPU,20MHZ,ERRCTRL,MVI
- Series：*
- Mfr：Microchip Technology
- Package：Tray
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- Number of I/O：-
- Program Memory Size：-
- Program Memory Type：-
- EEPROM Size：-
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- Voltage - Supply (Vcc/Vdd)：-
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- Oscillator Type：-
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- Supplier Device Package：-
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Overview
The AVR32SD32-E/PT is an 8-bit microcontroller from the AVR SD series, manufactured by Microchip Technology. It features a 32 kB system-in-programmable flash memory with ECC, 4 kB SRAM with ECC, and 256 B EEPROM with ECC. The device operates at clock speeds up to 20 MHz and supports a supply voltage range of 2.7 V to 5.5 V. It includes dual-core lockstep CPU architecture for functional safety compliance (ISO 26262 ASIL C). Key peripherals include a 10-bit ADC, comparators, zero-crossing detectors, watchdog timers, USARTs, SPI, and TWI interfaces. The component is housed in a TQFP-32 package.
Feature Summary
- Dual-core lockstep CPU configuration ensures high reliability and functional safety for critical applications.
- Integrated error correction codes (ECC) on flash, SRAM, and EEPROM enhance data integrity.
- Advanced analog peripherals including multi-voltage I/O and programmable comparators support diverse sensing needs.
- Comprehensive digital peripheral set with event system and multiple timer/counters enables efficient signal processing.
Applications
- Automotive systems requiring ISO 26262 compliance
- Industrial automation controllers
- Medical devices
- Security systems
Procurement Notes
Verify the specific suffix 'E' against the official datasheet to confirm temperature grade and material compliance. Confirm package type matches design requirements. Check current availability status as product lifecycles may change. Ensure programming tools are compatible with the UPDI interface.
Selection Notes
Select this model when functional safety standards like ASIL C are mandatory. The dual-core architecture provides redundancy essential for safety-critical control loops. Verify that the 20 MHz speed and available I/O count meet system performance requirements. Consider the 2.7V to 5.5V operating range for power supply flexibility.
Part Context
This part belongs to the AVR32SD family, designed for safety-critical applications. It shares architectural similarities with other AVR SD variants but offers specific pin counts and peripheral configurations tailored for 32-pin packages. The series emphasizes robustness through hardware-based error detection and correction mechanisms.
Replacement Considerations
Check for direct substitutes within the AVR32SD series such as AVR32SD20 or AVR32SD28 if pin compatibility allows. Verify equivalent safety certifications and peripheral sets before substitution.
FAQ
What safety standard does the AVR32SD32 comply with?
It complies with ISO 26262 (ASIL C) and IEC 61508 (SIL 2) standards due to its dual-core lockstep CPU and ECC features.
Does the flash memory include error correction?
Yes, the 32 kB flash memory includes Single Error Correction and Double Error Detection (SECDED) ECC.
What is the maximum operating frequency?
The maximum clock frequency is 20 MHz.
