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Microchip Technology AVR® EA Family Microcontrollers (MCUs)

Microchip Technology AVR® EA Family Microcontrollers (MCUs) use the AVR® CPU with hardware multiplier running at clock speeds up to 20MHz. These come with 64KB of Flash, 6KB of SRAM, and 512 bytes of EEPROM. The microcontrollers are available in 28-, 32- and 48-pin packages. The AVR EA Family uses the current technologies from Microchip with a flexible and low-power architecture, including Event System, accurate analog subsystems, and advanced digital peripherals.

The Microchip Technology AVR EA MCUs have high-speed integrated analog, hardware-based Core Independent Peripherals (CIPs) and low-power performance for efficient real-time control, sensor node, and secondary safety monitoring applications. For design flexibility and to optimize the user’s board layout, these devices are offered in 16KB to 64KB Flash devices in SPDIP, SSOP, TQFP, and VQFN packages ranging from 28 to 48 pins. These AVR EA MCUs are well suited for various industrial, consumer, appliance, automotive, sensor node, and other applications. AVR EA Family Microcontrollers (MCUs) are an excellent option for closed-loop control system designs and secondary monitoring devices for safety reasons.

Features

  • AVR CPU
    • Running at up to 20MHz
    • Single-cycle I/O register access
    • Two-level interrupt controller
    • Two-cycle hardware multiplier
    • 1.8V-5.5V supply voltage range
  • Memories
    • 64KB In-system-programmable Flash memory with a true read-while-write operation
    • 6KB SRAM
    • 512B EEPROM
    • 64B of user row in non-volatile memory that can keep data during chip erase and be programmed while the device is locked
    • Write/erase endurance
      • Flash: 10,000 cycles
      • EEPROM: 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)
    • Three 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
  • Peripherals
    • Two 16-bit Timer/Counters type A (TCA) with three compare channels for PWM and waveform generation
    • Four 16-bit Timer/Counters type B (TCB) with input capture for capture and signal measurements
    • One 16-bit Real-Time Counter (RTC) that can run from an external crystal or internal oscillator
    • Three USARTs with fractional baud rate generator, auto-baud, and start-of-frame detection
    • One host/client Serial Peripheral Interface (SPI)
    • One Two-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 four programmable Look-up Tables (LUTs)
    • One 12-bit, 375ksps, differential Analog-to-Digital Converter (ADC)
      • Includes a Programmable Gain Amplifier (PGA), 1x to 16x gain on the input signal
    • One 10-bit Digital-to-Analog Converter (DAC)
    • Two 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
    • 24 to 42 programmable I/O pins
    • 28-pin VQFN 4×4, SPDIP and SSOP– 32-pin VQFN 5×5 and TQFP 7×7
    • 48-pin VQFN 6×6 and TQFP 7×7
  • Temperature ranges
    • Industrial: -40°C to +85°C ambient
    • Extended: -40°C to +125°C ambient

Applications

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

Block Diagram

Block Diagram - Microchip Technology AVR® EA Family Microcontrollers (MCUs)

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Microchip Technology AVR® EA Family Microcontrollers (MCUs)