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ATMEGA88PB-AU

MCHPATMEGA88PB-AU

Microchip Technology
AVR AVR® ATmega, Functional Safety (FuSa) Microcontroller IC 8-Bit 20MHz 8KB (4K x 16) FLASH 32-TQFP (7x7)
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Overview

The ATMEGA88PB-AU is a high-performance, low-power 8-bit AVR RISC-based microcontroller featuring 8KB of flash memory and 1KB of SRAM. This variant is specifically designed for Functional Safety (FuSa) applications, offering hardware-level reliability for industrial and automotive-grade systems. It includes integrated capacitive touch support via the Peripheral Touch Controller (PTC) and operates at speeds up to 20MHz.

Why Choose This Part

This MCU combines a proven 8-bit architecture with modern safety-ready features and integrated capacitive touch hardware. Its wide operating voltage of 1.8V to 5.5V and low active current make it highly versatile for mixed-signal power environments. The inclusion of a unique device ID and a 2-cycle multiplier enhances security and computational efficiency over older AVR generations.

Applications

Functional Safety Controllers
Utilized in industrial systems requiring reliable operation and integrated safety features as part of a larger FuSa architecture.
Capacitive Touch Interfaces
Ideal for control panels and consumer electronics using the built-in 256-channel capacitive touch and proximity sensing capabilities.
Industrial Sensor Nodes
Suited for localized data processing and communication in harsh environments using the internal 10-bit ADC and robust serial interfaces.
Battery-Powered Instruments
Efficient for portable devices due to its ultra-low power consumption of 0.35mA at 1MHz and multiple power-down modes.

Key Specifications

Speed 20MHz
RAM Size 1K x 8
Core Size 8-Bit
EEPROM Size 512 x 8
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Connectivity I2C, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 27
Core Processor AVR
Package / Case 32-TQFP
Data Converters A/D 8x10b
Oscillator Type Internal
Program Memory Size 8KB (4K x 16)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 32-TQFP (7x7)
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V

Getting Started

Developers can use the Microchip Studio (formerly Atmel Studio) or MPLAB X IDE with the XC8 compiler for software development. Hardware debugging is typically handled via the On-chip Debug system using a tool like the MPLAB PICkit 5 or Atmel-ICE. Evaluation can be expedited using the ATMEGA88PB-XMINI development board which provides access to all I/O and integrated programming.

Also Consider

ATmega88PA-AU MCHPMicrochip Technology - A standard picoPower alternative for applications that do not require the specific Functional Safety or enhanced PTC features of the PB variant.

Categories

Microcontrollers Industrial & Automation > Functional Safety
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