AVR16EB20-E/REB

Overview

The AVR16EB20-E/REB is an 8-bit microcontroller from the AVR EB Family, featuring a 20-pin VQFN package. It includes 16 KB of Flash memory with read-while-write capability, 2 KB of SRAM, and 512 bytes of EEPROM. The device operates at clock speeds up to 20 MHz and supports a supply voltage range of 1.8 V to 5.5 V. Key peripherals include a 12-bit differential ADC with a programmable gain amplifier, 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 consist of USART, SPI, and TWI/I2C.

Feature Summary

• Features a flexible low-power architecture with an Event System for CPU-independent inter-peripheral signaling.
• Includes accurate analog subsystems such as a 12-bit differential ADC with a programmable gain amplifier and dual analog comparators.
• Supports vertical migration within the family without code modification due to full pin and feature compatibility.
• Provides advanced digital peripherals including Configurable Custom Logic (CCL) with Look-up Tables.

Applications

• Embedded control systems requiring extended temperature operation
• Applications utilizing event-driven peripheral communication
• Devices needing precise analog signal acquisition with PGA support

Procurement Notes

Verify the ordering suffix 'E' confirms the extended temperature range of -40°C to +125°C. Confirm the 'REB' suffix indicates the VQFN20 package style. Ensure the 'T' tape and reel carrier type is specified if required for automated assembly processes. Cross-reference the datasheet DS40002522A for final electrical specifications before integration.

Selection Notes

Select this component when an 8-bit AVR solution requires extended industrial or automotive temperature ratings. The 20-pin VQFN form factor suits space-constrained designs. Consider the 12-bit ADC resolution and PGA for sensor interfacing needs. Verify that the 20 MHz maximum frequency meets the processing requirements for the target application logic.

Part Context

This part belongs to the AVR EB Family, which utilizes the latest Microchip technology for low-power applications. The family offers horizontal and vertical migration paths, allowing designers to scale pin counts and memory sizes while maintaining software compatibility. The AVR16EB20 variant specifically provides a balance of I/O count and peripheral richness in a compact 20-pin footprint.

Replacement Considerations

AVR16EB20-I/REB: Identical hardware but limited to Industrial temperature range (-40°C to +85°C).

FAQ

What is the function of the 'E' suffix in the part number?

The 'E' suffix denotes that the device is rated for an Extended temperature range of -40°C to +125°C.

Does the AVR16EB20 support simultaneous host and client operations on its I2C interface?

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