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Product Detailed Parameters
- Description：IC MCU 8BIT 32KB FLASH 32VQFN
- 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 ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：32-VQFN (5x5)
- Package / Case：32-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The AVR32DB32-E/RXB is an 8-bit microcontroller from the AVR DB family, featuring a 24 MHz AVR CPU with hardware multiplier. It includes 32 KB Flash, 4 KB SRAM, and 512 B EEPROM. The device operates within a 1.8 V to 5.5 V supply range and supports temperatures from -40°C to +125°C. Key peripherals include a 12-bit ADC, 10-bit DAC, three op amps, and multiple communication interfaces such as USART, SPI, and TWI.
Feature Summary
- Supports Multi-Voltage I/O (MVIO) on Port C for flexible voltage level interfacing.
- Integrates analog signal conditioning with up to three operational amplifiers and internal resistor ladders.
- Features an Event System for CPU-independent inter-peripheral signaling to reduce latency.
- Includes Configurable Custom Logic (CCL) with programmable Look-up Tables for custom digital logic.
Applications
- Industrial control systems requiring extended temperature operation
- Smart energy metering applications utilizing high-precision analog subsystems
- Motor control designs leveraging zero-cross detectors and PWM timers
- Low-power embedded devices using configurable sleep modes
Procurement Notes
Verify the ordering suffix 'E' confirms the extended temperature range (-40°C to +125°C). Confirm the suffix 'RXB' corresponds to the 32-pin VQFN package. Ensure compatibility with existing design footprints by checking the specific pinout diagram in the official datasheet before procurement.
Selection Notes
Select this component when extended industrial temperature ratings are required alongside standard AVR DB features. It provides vertical migration compatibility within the AVR DB family without code modification. Consider the 32-pin VQFN package size constraints and verify that the available I/O count meets the system interface requirements.
Part Context
This part belongs to the AVR32DB28/32/48 series, which shares architectural similarities but varies in pin count and peripheral availability. The AVR32DB32 variant offers a balanced feature set for space-constrained designs. It is compatible with Microchip's MPLAB X IDE and UPDI programming tools.
Replacement Considerations
AVR32DB32-I/RXB serves as the industrial temperature version of this component. Other members of the AVR32DB family offer vertical migration paths with identical code compatibility but different pin counts or memory sizes.
