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Product Detailed Parameters
- Description：16KB, RWW, 2KB RAM, 32P VQFN, 12
- Series：AVR® EA
- Mfr：Microchip Technology
- Package：Tray
- 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：16KB (16K x 8)
- Program Memory Type：FLASH
- EEPROM Size：512 x 8
- RAM Size：2K 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 ~ 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 AVR16EA32-E/RXB is a microcontroller from the AVR EA Family, featuring an AVR CPU with hardware multiplier running at clock speeds up to 20 MHz. It includes 16 KB of Flash memory, 2 KB of SRAM, and 512 bytes of EEPROM. The device operates within an extended temperature range of -40°C to +125°C and supports supply voltages from 1.8V to 5.5V. Key peripherals include two 16-bit Timer/Counters type A, four 16-bit Timer/Counters type B, a Real-Time Counter, three USARTs, one SPI host/client, one TWI/I2C interface, a 12-bit differential ADC, a 10-bit DAC, and two Analog Comparators. It utilizes a single-pin Unified Program and Debug Interface (UPDI) for programming and debugging.
Feature Summary
- Supports flexible low-power architecture with Event System for CPU-independent inter-peripheral signaling
- Includes accurate analog subsystems such as a 12-bit differential ADC with Programmable Gain Amplifier and multiple voltage references
- Features advanced digital peripherals including Configurable Custom Logic Look-up Tables and automated CRC Flash program memory scan
Applications
- Industrial control systems requiring extended temperature operation
- Battery-powered devices utilizing low-power sleep modes and efficient power management
- Applications needing precise analog signal processing with differential ADC and programmable gain
Procurement Notes
Verify the ordering suffix 'RXB' corresponds to the specific tape and reel packaging configuration intended for your assembly line. Confirm that the 'E' suffix denotes the extended industrial temperature range (-40°C to +125°C) required for your environmental specifications. Ensure compatibility with existing UPDI programming tools and verify that the preliminary datasheet status does not impact final production validation timelines.
Selection Notes
Select this model when vertical migration within the AVR EA Family is needed without code modification. Choose the 32-pin variant if more General Purpose I/O pins are required compared to the 28-pin version but fewer resources than the 48-pin option are sufficient. Consider the 16 KB Flash size adequate for application firmware while balancing cost against higher memory variants in the family.
Part Context
This component belongs to the AVR16EA28/32/48 subset of the broader AVR EA Family. It shares architectural similarities with the AVR32EA and AVR64EA series but offers lower memory capacities. The device is designed for pin and feature compatibility across the family, allowing for horizontal migration to reduce pin counts or vertical migration to increase resources without altering source code.
Replacement Considerations
AVR16EA32-E/PT is available as a tube/tray alternative. AVR16EA32-T/E/PT may denote different carrier types. Verify exact suffix meanings with Microchip documentation before substitution.
