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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATmega, Functional Safety (FuSa)
Packaging Tray |
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 27
Program Memory Size 8KB (4K x 16)
Program Memory Type FLASH
EEPROM Size 512 x 8
RAM Size 1K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V
Data Converters A/D 8x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 32-VFQFN (5x5)
Package / Case 32-VFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATMEGA88PB-MU is a versatile 8-bit AVR MCU in a 32-VFQFN package. It features 8KB Flash, 1KB SRAM, and operates at 20 MHz with a 1.8V–5.5V supply. Integrated peripherals include a 10-bit ADC, three timers, PWM, and USART/SPI/I2C. Its compact QFN footprint and wide voltage range make it a popular choice for consumer and industrial embedded designs.

  • Compact QFN Package: 32-VFQFN with exposed pad saves board space and improves heat dissipation.
  • Flexible Power: 1.8V–5.5V range simplifies dual-voltage designs.
  • Rich Peripheral Set: Three timers, ADC, and multiple serial interfaces reduce external ICs.
  • Proven AVR Core: Industry-standard architecture with extensive documentation and community support.

Consumer Electronics Remote Controls

Low power consumption and 1.8V operation extend battery life in IR/RF remotes.

Small Appliance Timers

PWM outputs and 20 MHz speed handle microwave ovens, coffee makers, and air fryer control panels.

Sensor Data Loggers

With 8KB Flash and 1KB RAM, it can store calibration data and log readings from temperature/humidity sensors.

Motor Speed Controllers

Its PWM channels and 5.5V capability drive small DC motors in toys, fans, and pumps.

Security Keypads

Multiple I/O pins and UART interface support matrix keypads and encrypted communication with alarm panels.

Lighting Dimmer Modules

Zero-cross detection via external interrupt and PWM enables phase-controlled dimming for LED bulbs.

Q: What is the package type?
A: It comes in a 32-pin VFQFN with an exposed pad for thermal management.
Q: What is the maximum clock speed?
A: The ATMEGA88PB-MU runs at up to 20 MHz.
Q: What is the RAM size?
A: It has 1KB of SRAM.
Q: Does it have a brown-out detector?
A: Yes, it includes programmable Brown-out Detection and Power-on Reset.
Base Product Number : ATMEGA88PB
20MHz 32-VFQFN 8-bit MCU 8KB Flash ADC AVR consumer I2C industrial PWM SPI UART
Q: What is the package type?
A: It comes in a 32-pin VFQFN with an exposed pad for thermal management.
Q: What is the maximum clock speed?
A: The ATMEGA88PB-MU runs at up to 20 MHz.
Q: What is the RAM size?
A: It has 1KB of SRAM.
Q: Does it have a brown-out detector?
A: Yes, it includes programmable Brown-out Detection and Power-on Reset.