AVR16EB20-I/REB

Overview

The AVR16EB20-I/REB is an 8-bit microcontroller from the AVR EB Family, featuring a 16 KB Flash program memory, 2 KB SRAM, and 512 bytes of EEPROM. It operates at clock speeds up to 20 MHz with a supply voltage range of 1.8 V to 5.5 V. The device includes a 12-bit differential ADC with 14 channels, two 16-bit Timer/Counters type B (TCB), one Timer/Counter type E (TCE) with Waveform Extension, and one Timer/Counter type F (TCF). Communication interfaces include USART, SPI, and TWI/I2C. It utilizes a single-pin Unified Program and Debug Interface (UPDI) and is housed in a VQFN-20 package.

Feature Summary

• Features true read-while-write operation for Flash memory, allowing code execution during programming or erasure cycles.
• Includes an Event System for CPU-independent inter-peripheral signaling to reduce processor load.
• Integrates Configurable Custom Logic (CCL) with programmable Look-up Tables for hardware logic implementation.
• Supports multiple sleep modes including Idle, Standby, and Power-Down for optimized power management.

Applications

• Battery-powered devices requiring low-power consumption and extended data retention.
• Industrial control systems utilizing the Event System and CCL for deterministic peripheral interaction.
• Applications requiring precise analog signal acquisition via the 12-bit differential ADC with PGA.
• Motor control implementations leveraging TCE with Waveform Extension for PWM generation.

Procurement Notes

Verify the ordering suffix 'I' confirms the Industrial temperature range (-40°C to +85°C) and 'REB' specifies the VQFN-20 package. Confirm that the 'T' tape and reel designation is included if required for automated assembly; its absence indicates tube packaging. Ensure the specific revision level matches the design requirements, as preliminary datasheets may undergo updates before final release.

Selection Notes

Select this component when vertical migration within the AVR EB family is needed without code modification. Choose the I/REB variant for industrial environments requiring the VQFN-20 footprint. Consider the AVR32EB20 if higher memory capacity is necessary, or the AVR16EB14 if fewer pins are sufficient. Verify that the 20 MHz maximum frequency meets the system timing requirements.

Part Context

This part belongs to the AVR EB Family, which shares pin and feature compatibility across 14-, 20-, 28-, and 32-pin variants. It uses the AVR CPU with a hardware multiplier and supports unified programming via UPDI. The family emphasizes low-power architecture with flexible analog subsystems and advanced digital peripherals like the Event System and CCL.

Replacement Considerations

AVR16EB20-E/REB offers the same specifications but with an Extended temperature range (-40°C to +125°C). AVR32EB20-I/REB provides double the Flash and SRAM capacity while maintaining pin compatibility.