Microchip Technology ATMEGA1281-16MU Microcontroller, Microprocessor, FPGA Modules
IC MCU 8BIT 128KB FLASH 64QFN
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
ATMEGA1281-16MU
Detailed Description
IC MCU 8BIT 128KB FLASH 64QFN
Package
64-VFQFN Exposed Pad
Key Features
Package / Case: 64-VFQFN Exposed Pad; Mounting Type: Surface Mount
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
ATMEGA1281-16MU Datasheet
Quick Jump:
Technical Specifications
Microchip Technology ATMEGA1281-16MU Microcontroller, Microprocessor, FPGA Modules technical specifications.
General
Series
ATmega128x
RAM Size
8K x 8
Data Bus Width
8 bit
Maximum Clock Frequency
16 MHz
RoHS
True
Package / Case
64-VFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.7V ~ 5.5V
Lifecycle Status
Active
Alternate Parts Comparison (ATMEGA1281-16MU vs ATMEGA329V-8MUR vs ATMEGA649-16MUR vs ATMEGA329-16MU)
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-VFQFN Exposed Pad | 64-VFQFN Exposed Pad | 64-VFQFN Exposed Pad | 64-VFQFN Exposed Pad |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Supply Voltage | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Core Processor | AVR | AVR | AVR | AVR |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| RAM Size | 8K x 8 | 2K x 8 | 4K x 8 | 2K x 8 |
| Connectivity | EBI/EMI, I²C, SPI, UART/USART | SPI, UART/USART, USI | SPI, UART/USART, USI | SPI, UART/USART, USI |
| Data Converters | A/D 8x10b | A/D 8x10b | A/D 8x10b | A/D 8x10b |
| EEPROM Size | 4K x 8 | 1K x 8 | 2K x 8 | 1K x 8 |
| Number of I/O | 54 | 54 | 53 | 54 |
| Oscillator Type | Internal | Internal | Internal | Internal |
| 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
MC9S08AC128CFUENXP SemiconductorsNXP
IC MCU 8BIT 128KB FLASH 64QFP
MC9S08DZ128CLHNXP SemiconductorsNXP
IC MCU 8BIT 128KB FLASH 64LQFP
S9S08DV128F2CLFNXP SemiconductorsNXP
IC MCU 8BIT 128KB FLASH 48LQFP
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.
PIC18F66K80-I/MRMicrochip Technology32KB 1.8V~5.5V PIC 64MHz FLASH 54 QFN-64-EP(9x9) Microcontroller Units (MCUs/MPUs/SOCs)