Microchip Technology AVR® DB 8-Bit Microcontrollers are designed to bring analog signal conditioning, real-time control, and multi-voltage operation to applications including industrial control, home appliances, and Internet of Things (IoT). The AVR DB MCUs operate at up to 24MHz across the full supply voltage range of 1.8V to 5.5V. These devices include 32KB, 64KB, and 128KB Flash variants in 28- to 64-pin package options.
The AVR DB MCUs build upon the low-power performance of the AVR core with a world-class selection of Core Independent Peripherals (CIPs) and a fully loaded Intelligent Analog portfolio. The Analog Signal Conditioning (ASC) module includes three on-chip operational amplifiers (OPAMPs), enabling signal conditioning without external components. The Multi-Voltage I/O system allows safe bidirectional communication with systems running at a different voltage. The Event System, Configurable Custom Logic (CCL), along with intelligent analog peripherals makes the AVR DB MCUs well-suited for sensor applications, IoT end nodes, and other applications where signal conditioning or level-shifting is needed.
The Microchip Technology AVR DB MCUs are fully supported by a comprehensive development ecosystem. The free MPLAB® X Integrated
Development Environment (IDE) and Studio includes a built-in GCC compiler. The powerful MPLAB Code Configurator and Atmel START code configuration tools generate factory-validated C-code, enabling quick design.
FEATURES
Internal 24MHz oscillator
Up to 128KB of Flash memory
Up to 16KB SRAM
Up to 22-channel, 130ksps 12-bit differential Analog-to-Digital Converter (ADC)
10-bit 350ksps Digital-to-Analog Converter (DAC)
Analog signal conditioning (OPAMP)
Analog Comparator (AC) with scalable reference input
Up to three Zero-Cross Detectors (ZCDs)
Built-in safety functions, including POR, BOR, VLM, and Cyclic Redundancy Check (CRC) scan Clock Failure Detect
16-bit Real Time Clock (RTC) and periodic interrupt timer Configurable Custom Logic (CCL) peripheral
Up to 10-channel Event System peripheral
Configurable, internally-generated reference voltage
USART/SPI/dual-mode Two-Wire Interface (TWI)
Available with up to 54 I/O
Multi-voltage I/O on Port C
1.8V tolerant inputs selectable for all input pins
1.8V to 5.5V operating voltage range
Operating temperature range
-40°C to +85°C (Industrial)
-40°C to +125°C (Extended)
Package options
64-pin TQFP, VQFN
48-pin TQFP, VQFN
32-pin TQFP, VQFN
28-pin SOIC, SSOP, SPDIP
