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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATmega
Packaging Tube |
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 6x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Through Hole
Supplier Device Package 28-PDIP
Package / Case 28-DIP (0.300", 7.62mm)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATMEGA48PA-PU is an 8-bit AVR microcontroller from Microchip Technology. It features a 20MHz RISC core, 4KB of flash memory, and 512 bytes of SRAM, operating from 1.8V to 5.5V. The 28-pin DIP package is ideal for through-hole assembly and breadboard prototyping, offering a simple path for embedded development.

  • Through-hole DIP package: Easy to solder and breadboard for prototyping.
  • Low voltage operation: Down to 1.8V for battery-powered designs.
  • High speed for its class: 20MHz enables fast processing.
  • Mature AVR ecosystem: Extensive documentation and community support.

Prototyping and Education

The 28-DIP package is breadboard-friendly, ideal for learning and rapid prototyping.

Embedded Control Systems

With 20MHz speed and 4KB flash, it handles small control loops in appliances and tools.

Sensor Nodes

Low power consumption and 1.8V operation enable battery-powered sensor networks.

Motor Control

PWM outputs and WDT provide reliable commutation for small DC motors.

Automotive Aftermarket

Wide voltage range and robust I/O suit retrofit automotive accessories.

DIY Electronics

Easy programming via SPI and DIP package make it a hobbyist favorite.

Q: What is the core architecture of the ATMEGA48PA-PU?
A: It uses the AVR 8-bit RISC core.
Q: What is the maximum clock frequency?
A: It runs at up to 20MHz.
Q: How much flash memory does it have?
A: It has 4KB of flash memory.
Q: What package is this?
A: It is a 28-pin DIP package.
Q: What is the operating temperature range?
A: It operates from -40°C to 85°C.
Base Product Number : ATMEGA48PA
20MHz 4KB Flash 512B RAM 8-bit MCU AVR DIP-28 Low Power Prototyping PWM RISC
Q: What is the core architecture of the ATMEGA48PA-PU?
A: It uses the AVR 8-bit RISC core.
Q: What is the maximum clock frequency?
A: It runs at up to 20MHz.
Q: How much flash memory does it have?
A: It has 4KB of flash memory.
Q: What package is this?
A: It is a 28-pin DIP package.
Q: What is the operating temperature range?
A: It operates from -40°C to 85°C.