ATmega128A
Key datasheet specifications and the closest alternatives, ranked by parametric similarity and grounded in the manufacturer datasheet.
This Microchip datasheet covers the ATmega128A, a high-performance, low-power 8-bit AVR microcontroller. It details the chip's architecture, memory map, and peripheral capabilities for system designers. Key parameters include 128KB of Flash program memory, 4KB EEPROM, and 4KB SRAM. The device operates at voltages between 2.7V and 5.5V with clock speeds up to 16MHz. It features extensive peripherals including two expanded 16-bit timers, an 8-channel 10-bit ADC, dual USARTs, and SPI interfaces. With 53 programmable I/O lines and six sleep modes, it balances processing speed with power efficiency.
Datasheet parameters
| Parameter | Min | Typ | Max | Conditions |
|---|---|---|---|---|
| supply voltage range | 2.7 V | — | 5.5 V | |
| operating temperature | -40 °C | — | 85 °C | |
| clock frequency | — | 16 MHz | — | |
| cpu speed | — | 16 MHz | — | |
| program memory size | — | 131 kB | — | |
| ram size | — | 4.1 kB | — | |
| io count | — | 53 | — | |
| adc resolution | — | 10 bit | — | |
| core size | — | 8 bit | — |
Closest matches to ATmega128A
Frequently asked questions
What is the ADC resolution of the ATmega128A?
The ADC resolution is 10 bit.
What is the maximum clock frequency for the ATmega128A?
The maximum clock frequency is 16 MHz.
What is the core size of the ATmega128A?
The core size is 8 bit.
What is the maximum CPU speed of the ATmega128A?
The maximum CPU speed is 16 MHz.
How many I/O pins does the ATmega128A have?
The ATmega128A has 53 I/O pins.
What is the maximum operating temperature for the ATmega128A?
The maximum operating temperature is 85 °C.
What is the program memory size of the ATmega128A?
The program memory size is 131 kB.
What is the RAM size of the ATmega128A?
The RAM size is 4.1 kB.