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Product Detailed Parameters
- Description：IC MCU 8BIT 32KB FLASH 32VFQFN
- Series：AVR® DD
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Core Processor：AVR
- Core Size：8-Bit
- Speed：20MHz
- Connectivity：I2C, IrDA, SMBus, SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：27
- Program Memory Size：32KB (32K x 8)
- Program Memory Type：FLASH
- EEPROM Size：256 x 8
- RAM Size：4K x 8
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
- Data Converters：A/D 24x12b; D/A 1x10b
- Oscillator Type：External, Internal
- Operating Temperature：-40°C ~ 85°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 AVR32EA32T-I/RXB is an 8-bit microcontroller from the Microchip AVR32EA series, featuring a 32 kB Flash program memory and 4 kB SRAM. It operates at a maximum clock frequency of 20 MHz within a voltage range of 1.8 V to 5.5 V. The device is housed in a 32-pin VQFN package and supports an operating temperature range of -40°C to +85°C. Key peripherals include a 12-bit ADC with 24 channels, a 10-bit DAC, two comparators, and multiple communication interfaces such as SPI, TWI, and USART.
Feature Summary
- Integrated Read-While-Write (RWW) capability for continuous code execution during flash operations
- Configurable Floating Point Digital (CFD) block for efficient mathematical processing
- Programmable Gain Amplifier (PGA) supporting high-resolution analog signal acquisition
- Dual comparator modules enabling precise threshold detection and control
Applications
- Battery-powered sensor nodes requiring low power consumption
- Industrial control systems utilizing analog signal conditioning
- Smart metering applications with high-resolution data conversion needs
- Automotive instrumentation within specified temperature ranges
Procurement Notes
Verify the specific suffix 'RXB' corresponds to the 32-VQFN package and tape-and-reel packaging format. Confirm that the industrial temperature grade (-40°C to +85°C) aligns with your environmental requirements. Ensure compatibility with the AVR32EA family programming tools and check for any recent product change notices regarding pinout or electrical characteristics.
Selection Notes
Select this component when a balance of analog performance and digital processing is required in a compact form factor. The 20 MHz speed suits moderate throughput applications, while the 12-bit ADC and PGA address precision measurement tasks. Compare against the AVR32DA series if higher clock speeds are needed, or the AVR32DB series for extended temperature ranges up to 125°C.
Part Context
This part belongs to the AVR32EA family, designed for cost-sensitive applications needing enhanced analog features. It shares architectural similarities with the AVR32EB and AVR32DD families but distinguishes itself through the inclusion of the CFD block and specific peripheral configurations like the dual comparators and PGA.
