embedded processors controllers

ATmega48PA

Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.

00 — Overview

What the ATmega48PA does

The ATmega48/88/168/328 family comprises 8-bit microcontrollers with 4, 8, 16, or 32KBytes of In-System Programmable Flash. These devices feature an Advanced RISC architecture with 32 general-purpose registers and operate at speeds up to 20 MHz. Key specifications include a 1.8 to 5.5V operating voltage, 10,000 Flash write/erase cycles, and 100,000 EEPROM write cycles. The parts offer 6 to 8 analog-to-digital converter channels, multiple timer/counter units, and support for I2C and SPI interfaces. Available in 28-pin PDIP, 32-lead TQFP, and various QFN packages, they support temperature ranges from -40°C to 85°C. These microcontrollers are typically used in embedded control applications requiring low power consumption and high performance.

Next step
Start building with ATmega48PA → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.
01 — Key specifications

Datasheet parameters

Datasheet parameters for ATmega48PA
ParameterMinTypMaxConditionsSource
supply voltage range 1.8 V — 5.5 V Microchip datasheet, p. 1
operating temperature -40 °C — 85 °C Microchip datasheet, p. 1
clock frequency — 20 MHz — Microchip datasheet, p. 1
cpu speed — 20 MHz — Microchip datasheet, p. 1
program memory size — 3.91 KB — flash Microchip datasheet, p. 6 — Table 2-1. Memory Size Summary
ram size — 512 B — ram Microchip datasheet, p. 6 — Table 2-1. Memory Size Summary
eeprom size — 256 B — eeprom Microchip datasheet, p. 6 — Table 2-1. Memory Size Summary
io count — 23 — Microchip datasheet, p. 1
adc resolution — 10 bit — Microchip datasheet, p. 1
core size — 8 bit — Microchip datasheet, p. 1
02 — Alternatives

Closest matches to ATmega48PA

ATmega168A 4.0× higher program memory size, 2.0× higher eeprom size, 2.0× higher ram size
PIC16LF1824 2.0× higher program memory size, 2.0× lower ram size, 1.9× higher operating temperature
ATmega8A 2.0× higher program memory size, 2.0× higher ram size, 1.2× lower clock frequency
EFM8BB10F2A-A-QFN20 2.0× lower program memory size, 2.0× lower ram size, 1.6× lower clock frequency
PIC16F873A 4.0× lower cpu speed, 2.7× lower ram size, 2.0× lower eeprom size
MS51FB9AE-T 4.0× higher program memory size, 2.0× higher ram size, 1.4× higher operating temperature
MSP430FR2310 3.9× higher ram size, 2.0× higher core size, 2.0× lower program memory size
STM8S003F3 2.5× lower clock frequency, 2.0× higher program memory size, 2.0× higher ram size
03 — FAQ

Frequently asked questions

What is the ADC resolution of the ATmega48PA?

The ADC resolution is 10 bit.

What is the maximum clock frequency for the ATmega48PA?

The maximum clock frequency is 20 MHz.

What is the core size of the ATmega48PA?

The core size is 8 bit.

What is the maximum CPU speed of the ATmega48PA?

The maximum CPU speed is 20 MHz.

What is the EEPROM size?

The EEPROM size is 256 B under the EEPROM condition.

How many I/O pins does the ATmega48PA have?

The ATmega48PA has 23 I/O pins.

What is the maximum operating temperature for the ATmega48PA?

The operating temperature is 85 °C.

What is the program memory size of the ATmega48PA?

The program memory size is 3.91 KB in flash.

What is the RAM size of the ATmega48PA?

The RAM size is 512 B.

What is the maximum supply voltage for the ATmega48PA?

The maximum supply voltage is 5.5 V.

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