Microchip Technology ATMEGA48PA-MMNR

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATmega
Packaging Cut Tape (CT) | NULL
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 23
Program Memory Size 4KB (2K x 16)
Program Memory Type FLASH
EEPROM Size 256 x 8
RAM Size 512 x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V
Data Converters A/D 8x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 105°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 28-VQFN (4x4)
Package / Case 28-VFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATMEGA48PA-MMNR is an 8-bit AVR MCU running at 20MHz with 4KB flash and 512B RAM. It operates from 1.8V to 5.5V and includes PWM, POR, BOR, and WDT. Packaged in a 28-VFQFN, it is a versatile choice for cost-sensitive embedded applications.

  • AVR core is widely supported with extensive code examples.
  • 20MHz speed provides fast execution for real-time tasks.
  • 1.8V to 5.5V supply range simplifies power design.
  • 28-QFN package offers a small footprint with good thermal performance.

Arduino-Compatible Prototypes

AVR architecture and 20MHz speed make it a drop-in for many maker projects.

Industrial Sensor Conditioning

Analog comparator and PWM enable signal conditioning in process control.

Automotive Aftermarket Modules

Wide temperature range and BOR ensure reliable operation in vehicle environments.

Smart Home Controllers

Low power modes and 1.8V operation suit battery-powered Zigbee/Bluetooth bridges.

Motor Speed Controllers

Fast PWM and 20MHz core provide smooth speed regulation for small DC motors.

Data Loggers

512B RAM and EEPROM support storing calibration and logging data.

Q: What is the maximum clock speed of the ATMEGA48PA-MMNR?
A: It runs at up to 20MHz.
Q: What is the supply voltage range?
A: It operates from 1.8V to 5.5V.
Q: How much flash memory does it have?
A: It has 4KB of flash (2K x 16 bits).
Q: What package is this device available in?
A: It comes in a 28-VFQFN exposed pad package.
Base Product Number : ATMEGA48PA
20MHz 28-QFN 4KB Flash 8-bit MCU ATmega Automotive AVR BOR Industrial Maker PWM WDT
Q: What is the maximum clock speed of the ATMEGA48PA-MMNR?
A: It runs at up to 20MHz.
Q: What is the supply voltage range?
A: It operates from 1.8V to 5.5V.
Q: How much flash memory does it have?
A: It has 4KB of flash (2K x 16 bits).
Q: What package is this device available in?
A: It comes in a 28-VFQFN exposed pad package.