Microchip Technology ATMEGA2561-16AI Microcontroller, Microprocessor, FPGA Modules
IC MCU 8BIT 256KB FLASH 64TQFP
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
ATMEGA2561-16AI
Detailed Description
IC MCU 8BIT 256KB FLASH 64TQFP
Package
64-TQFP
Key Features
Package / Case: 64-TQFP; Mounting Type: Surface Mount
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
ATMEGA2561-16AI Datasheet
Quick Jump:
Technical Specifications
Microchip Technology ATMEGA2561-16AI Microcontroller, Microprocessor, FPGA Modules technical specifications.
General
Series
ATmega256x
RAM Size
8K x 8
Data Bus Width
8 bit
Maximum Clock Frequency
16 MHz
RoHS
Yes
Package / Case
64-TQFP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
4.5V ~ 5.5V
Lifecycle Status
Obsolete
Alternate Parts Comparison (ATMEGA2561-16AI vs ATSAMC20J17A-ANTS2 vs PIC32MX450F128H-I/PT vs PIC24FJ128GA306-I/PT)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 64-TQFP | 64-TQFP | 64-TQFP | 64-TQFP |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 105°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Supply Voltage | 4.5V ~ 5.5V | 2.7V ~ 5.5V | 2.3V ~ 3.6V | 2V ~ 3.6V |
| Core Processor | AVR | ARM® Cortex®-M0+ | MIPS32® M4K™ | PIC |
| Core Size | 8-Bit | 32-Bit Single-Core | 32-Bit Single-Core | 16-Bit |
| RAM Size | 8K x 8 | 16K x 8 | 32K x 8 | 8K x 8 |
| Connectivity | EBI/EMI, I²C, SPI, UART/USART | I²C, LINbus, SPI, UART/USART | I²C, IrDA, LINbus, PMP, SPI, UART/USART, USB OTG | I²C, IrDA, LINbus, SPI, UART/USART |
| Data Converters | A/D 8x10b | A/D 12x12b | A/D 28x10b | A/D 16x10b/12b |
| Number of I/O | 54 | 52 | 49 | 53 |
| Oscillator Type | Internal | Internal | Internal | Internal |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, DMA, POR, WDT | Brown-out Detect/Reset, DMA, POR, PWM, WDT | Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
Suggested replacements
NXP
IC MCU 8BIT 60KB FLASH 32LQFP
NXP
IC MCU 8BIT 60KB FLASH 44LQFP
NXP
IC MCU 8BIT 60KB FLASH 64LQFP
NXP
IC MCU 8BIT 60KB FLASH 64QFP
NXP
IC MCU 8BIT 60KB FLASH 48LQFP
NXP
IC MCU 8BIT 60KB FLASH 64LQFP
NXP
IC MCU 8BIT 60KB FLASH 48LQFP
NXP
IC MCU 8BIT 60KB FLASH 64QFP
More Parts in Microcontrollers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.