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Microchip Technology AVR16EA28/32/48 AVR® EA Microcontrollers

Microchip Technology AVR16EA28/32/48 AVR® EA Microcontrollers implement the AVR CPU with a hardware multiplier running at clock speeds of up to 20MHz. The AVR EA family facilitates a flexible and low-power architecture, including Event System, accurate analog subsystems, and advanced digital peripherals. The MCUs provide 16KB of Flash, 2KB of SRAM, and 512 bytes of EEPROM. The Microchip AVR16EA28/32/48 AVR EA MCUs are housed in 28-, 32-, and 48-pin packages.

Features

  • AVR® CPU
    • Running at up to 20MHz
    • Single-cycle I/O register access
    • 2-level interrupt controller
    • 2-cycle hardware multiplier
    • Supply voltage range of 1.8V to 5.5V
  • Memories
    • 16KB in-system-programmable Flash memory with a true read-while-write operation
    • 2KB SRAM
    • 512 EEPROM
    • 64B of user row in nonvolatile memory that can keep data during chip-erase and be programmed while the device is locked
    • Write/erase endurance
      • Flash at 10,000 cycles
      • EEPROM at 100,000 cycles
    • Data retention of 40 years at +55°C
  • System
    • Power-on Reset (POR) circuit
    • Brown-out Detector (BOD) with user-programmable levels
    • Voltage Level Monitor (VLM) with interrupt at a programmable level above the BOD level
    • Clock Failure Detection (CFD)
    • Clock options
      • High-precision internal oscillator with selectable frequency up to 20MHz (OSCHF)
      • Auto-tuning for improved internal oscillator accuracy
      • Internal ultra-low power 32.768kHz oscillator (OSC32K)
      • External 32.768kHz crystal oscillator (XOSC32K)
      • External clock input
      • External high-frequency crystal oscillator with clock failure detection (XOSCHF)
    • Single-pin Unified Program and Debug Interface (UPDI)
    • 3x sleep modes
      • Idle with all peripherals running for immediate wake-up
      • Standby with a configurable operation of selected peripherals
      • Power-Down with full data retention
  • Temperature ranges
    • Industrial -40°C to +85°C ambient
    • Extended -40°C to +125°C ambient
  • Peripherals
    • 2x 16-bit Timer/Counters type A (TCA) with 3x compare channels for PWM and waveform generation
    • 4x 16-bit Timer/Counters type B (TCB) with input capture for capture and signal measurements
    • 1x 16-bit Real-Time Counter (RTC) that can run from an external crystal or internal oscillator
    • 3x USARTs with fractional baud rate generator, auto-baud, and start-of-frame detection
    • 1x host/client Serial Peripheral Interface (SPI)
    • 1x 2-Wire Interface (TWI) with dual address match
      • Independent host and client operation (Dual mode)
      • Philips I2C compatible
      • Standard-mode (Sm, 100kHz)
      • Fast-mode (Fm, 400kHz)
      • Fast-mode Plus (Fm+, 1MHz)
    • Event System for CPU-independent and predictable inter-peripheral signaling
    • Configurable Custom Logic (CCL) with up to 4x programmable Look-up Tables (LUTs)
    • 1x 12-bit, 375ksps, differential Analog-to-Digital Converter (ADC) that includes a Programmable Gain Amplifier (PGA), 1x to 16x gain on the input signal
    • 1x 10-bit Digital-to-Analog Converter (DAC)
    • 2x Analog Comparators (ACs) with window compare functions
    • Multiple voltage references (VREF)
      • 1.024V
      • 2.048V
      • 2.500V
      • 4.096V
      • VREFA
      • VDD
    • Automated Cyclic Redundancy Check (CRC) Flash program memory scan
    • Watchdog Timer (WDT) with Window mode and separate on-chip oscillator
    • External interrupt on all general-purpose pins
  • I/O and packages
    • 24x to 42x programmable I/O pins
    • 28-pin VQFN 4mm x 4mm, SPDIP and SSOP
    • 32-pin VQFN 5mm x 5mm and TQFP 7mm x 7mm
    • 48-pin VQFN 6mm x 6mm and TQFP 7mm x 7mm

Applications

  • Industrial
  • Consumer
  • Appliances
  • Closed-loop control systems
  • Automotive
  • IoT
  • Sensor nodes
  • Secondary safety monitoring

AVR® EA Family Overview

Infographic - Microchip Technology AVR16EA28/32/48 AVR® EA Microcontrollers

Associated Products

Microchip Technology AVR® EA Family Microcontrollers (MCUs)

Devices use the AVR® CPU with hardware multiplier running at clock speeds of up to 20MHz.

Learn Moreabout Microchip Technology AVR® EA Family Microcontrollers (MCUs) View Productsrelated to Microchip Technology AVR® EA Family Microcontrollers (MCUs)

Microchip Technology AVR32EA28/32/48 Microcontrollers

Offers 32KB of Flash, 4KB of SRAM, and 512 bytes of EEPROM in 28-, 32-, and 48-pin packages.

Learn Moreabout Microchip Technology AVR32EA28/32/48 Microcontrollers View Productsrelated to Microchip Technology AVR32EA28/32/48 Microcontrollers

Microchip Technology AVR64EA28/32/48 AVR® EA Microcontrollers

Supplies 64KB of Flash, 6KB of SRAM, and 512 bytes of EEPROM in 28-, 32-, and 48-pin packages. 

Learn Moreabout Microchip Technology AVR64EA28/32/48 AVR® EA Microcontrollers View Productsrelated to Microchip Technology AVR64EA28/32/48 AVR® EA Microcontrollers

Additional Resources

Block Diagram

Block Diagram - Microchip Technology AVR16EA28/32/48 AVR® EA Microcontrollers
Block Diagram - Microchip Technology AVR16EA28/32/48 AVR® EA Microcontrollers

Videos

Published: 2023-10-12 | Updated: 2024-01-23