Microchip Technology ATMEGA325P-20MUR

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATmega
Packaging | NULL
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
Connectivity SPI, UART/USART, USI
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 54
Program Memory Size 32KB (16K x 16)
Program Memory Type FLASH
EEPROM Size 1K x 8
RAM Size 2K x 8
Voltage - Supply (Vcc/Vdd) 2.7V ~ 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 64-QFN (9x9)
Package / Case 64-VFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATMEGA325P-20MUR is an 8-bit AVR MCU running at 20MHz with 32KB flash and 2KB SRAM. Operating from 2.7V to 5.5V, it supports both 3.3V and 5V logic, making it versatile for industrial, automotive, and consumer applications. The 64-VFQFN package offers a compact footprint with exposed pad for thermal management. Integrated PWM, brown-out detection, and WDT ensure reliable operation in demanding environments.

  • Wide voltage range: 2.7V-5.5V simplifies power supply design and logic compatibility.
  • High speed: 20MHz AVR core executes most instructions in a single cycle.
  • Robust peripherals: PWM, brown-out detection, and WDT enhance system reliability.
  • Compact package: 64-VFQFN with exposed pad improves thermal performance.

Industrial Automation

The 20MHz AVR core with PWM and WDT provides reliable control for PLCs and sensor interfaces.

Automotive Electronics

Wide voltage range (2.7V-5.5V) and -40°C to 85°C operation suit car body control modules and infotainment.

Smart Agriculture

Low-power modes and robust I/O support soil sensors, irrigation controllers, and weather stations.

Medical Devices

32KB flash accommodates firmware for glucose meters, thermometers, and infusion pumps with safety checks.

Home Automation

5V operation simplifies interfacing with relays and triacs for lighting and appliance control.

Educational Kits

AVR architecture with extensive community support is ideal for teaching embedded systems and robotics.

Q: What is the maximum clock speed of the ATMEGA325P-20MUR?
A: It operates at up to 20MHz.
Q: What is the supply voltage range?
A: It supports 2.7V to 5.5V, making it flexible for both 3.3V and 5V systems.
Q: How much flash memory is available?
A: It has 32KB of flash (16K x 16) and 2KB of SRAM.
Q: What package is this device in?
A: It comes in a 64-VFQFN exposed pad package.
Base Product Number : ATMEGA325P
20MHz 32KB Flash 5V 64-VFQFN 8-bit MCU Automotive AVR Industrial Low Power PWM
Q: What is the maximum clock speed of the ATMEGA325P-20MUR?
A: It operates at up to 20MHz.
Q: What is the supply voltage range?
A: It supports 2.7V to 5.5V, making it flexible for both 3.3V and 5V systems.
Q: How much flash memory is available?
A: It has 32KB of flash (16K x 16) and 2KB of SRAM.
Q: What package is this device in?
A: It comes in a 64-VFQFN exposed pad package.