AVR16EB32-E/RXB

Overview

The AVR16EB32-E/RXB is an 8-bit microcontroller from the AVR EB Family, featuring a 16 KB Flash memory with read-while-write capability, 2 KB SRAM, and 512 bytes of EEPROM. It operates at clock speeds up to 20 MHz within a supply voltage range of 1.8 V to 5.5 V. The device includes a 12-bit ADC with 24 channels, two TCBs, one TCE, one TCF, USART, SPI, and TWI interfaces. It is housed in a VQFN-32 package and supports an extended operating temperature range of -40°C to +125°C.

Feature Summary

• Features a flexible low-power architecture with hardware multiplier and single-cycle I/O register access.
• Includes an Event System for CPU-independent inter-peripheral signaling and Configurable Custom Logic (CCL).
• Supports true read-while-write operation for Flash memory to allow continuous code execution during programming.
• Provides multiple sleep modes including Idle, Standby, and Power-Down for optimized power management.

Applications

• Low-power embedded control systems requiring extended temperature stability.
• Applications utilizing the Event System for predictable peripheral-to-peripheral communication.
• Prototyping and development using Curiosity Nano evaluation kits.
• Systems requiring simultaneous host and client operations on TWI/I2C interfaces.

Procurement Notes

Verify the specific ordering suffix 'E' confirms the extended temperature range (-40°C to +125°C) and 'RXB' denotes the VQFN-32 package. Confirm that the datasheet status is Preliminary if final electrical characteristics are required for production. Ensure compatibility with UPDI programming tools and check for any specific revision notes regarding the Event System or ADC performance in the latest documentation update.

Selection Notes

Select this component when vertical migration within the AVR EB family is needed without code modification. Choose the -E variant for environments exceeding standard industrial temperatures. Consider the 24-channel 12-bit ADC and dual-mode TWI if analog sensing and multi-device bus communication are critical requirements for the design.

Part Context

This part belongs to the AVR EB Family, which offers pin and feature compatibility across 14, 20, 28, and 32-pin variants. It shares architectural similarities with other AVR devices but introduces advanced peripherals like the Event System and CCL. The family supports horizontal migration by reducing pin counts while maintaining core functionality.

Replacement Considerations

AVR16EB32-I/PT: Same memory and features in TQFP-32 package with Industrial temperature range.

FAQ

Can the TWI interface operate as both host and client simultaneously?

Yes, the TWI/I2C interface can operate simultaneously as a host and client on different pins.

What is the maximum frequency for the internal oscillator?

The high-precision internal oscillator (OSCHF) has selectable frequencies up to 20 MHz.