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Product Detailed Parameters
- Description：IC MCU 8BIT 32KB FLASH 32TQFP
- Series：AVR® DB
- Mfr：Microchip Technology
- Package：Tray
- 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：25
- 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 13x12b; 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 AVR32DB32-I/PT is an 8-bit microcontroller from the AVR DB family, featuring a hardware multiplier CPU running at up to 24 MHz. It includes 32 KB of Flash memory, 4 KB of SRAM, and 512 bytes of EEPROM. The device provides 26 I/O pins in a TQFP-32 package and supports a supply voltage range of 1.8 V to 5.5 V. Key peripherals include a 12-bit ADC with 13 channels, three analog comparators, three op amps, a 10-bit DAC, two SPI interfaces, one TWI interface, and multiple USARTs.
Feature Summary
- Supports vertical migration within the AVR DB family without code modification due to full pin and feature compatibility across variants.
- Integrates an Event System for CPU-independent inter-peripheral signaling to improve processing efficiency.
- Features Multi-Voltage I/O (MVIO) on Port C allowing selectable input voltage thresholds for flexible interfacing.
Applications
- Industrial control systems requiring low-power operation
- Smart energy metering applications
- Motor control using zero-cross detection and PWM timers
Procurement Notes
Verify the specific ordering suffix matches the required temperature range and package style. Confirm that the 'I' designation corresponds to the industrial temperature range of -40°C to +85°C. Ensure the TQFP-32 package variant aligns with your PCB footprint requirements before finalizing procurement orders.
Selection Notes
Select this component when designing systems that require vertical scalability within the AVR DB family. It is suitable for applications needing analog signal conditioning via integrated op amps and comparators. Consider the MVIO capability if interfacing with mixed-voltage logic levels is necessary.
Part Context
This part belongs to the AVR32DB28/32/48 series, which shares a common architecture with other devices in the AVR DB family. It offers horizontal migration options to reduce pin counts or vertical expansion to larger packages while maintaining software compatibility.
Replacement Considerations
AVR32DB28-I/PT, AVR32DB48-I/PT
FAQ
Does the AVR32DB32 support simultaneous host and client operation on its TWI interface?
Yes, the TWI/I2C interface can operate simultaneously as a host and client on different pins.
What is the maximum clock frequency for the internal oscillator?
The high-precision internal oscillator (OSCHF) supports selectable frequencies up to 24 MHz.
Can the user row be programmed while the device is locked?
Yes, the 32-byte user row in nonvolatile memory can be programmed while the device is locked and retains data during chip-erase.
