ATMEGA1281-16MUR vs ATMEGA128-16MU Comparison
Detailed side-by-side comparison of ATMEGA1281-16MUR by Microchip Technology and ATMEGA128-16MU by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Microchip Technology
ATMEGA1281-16MUR - 8-Bit AVR MCU 16MHz 128KB Flash | Microchip
ATMEGA1281-16MUR ✓ ActiveMicrochip Technology
ATMEGA128-16MU - 8-Bit AVR MCU 16MHz 128KB Flash | Microchip
ATMEGA128-16MU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA1281-16MUR | ATMEGA128-16MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core | AVR 8-bit RISC | — |
| Maximum Clock Frequency | 16 MHz | — |
| Program Memory Size | 128 KB (64K x 16) Flash | — |
| SRAM Size | 8 KB | — |
| EEPROM Size | 4 KB | — |
| Supply Voltage Range | 2.7 V to 5.5 V | [DATA_NEEDED: supply voltage range] |
| Number of I/O Lines | 54 | — |
| General Purpose Working Registers | 32 | — |
| Timers/Counters | 6 (flexible, with compare modes and PWM) | 4 with compare modes and PWM |
| USART Channels | 4 | — |
| Serial Interfaces | TWI (I2C-compatible), SPI | — |
| ADC Channels | 16-channel | — |
| Data Bus Width | 8 Bit | — |
| Package | 64-QFN (9x9 mm), VFQFN exposed pad | 64-QFN (9x9 mm, MLF) |
| Mounting Type | Surface Mount | Surface Mount |
| Temperature Range | Industrial (-40C to +85C) | — |
| Life Cycle Stage | Active | — |
| Core Architecture | — | 8-bit AVR RISC |
| CPU Speed | — | 16 MHz |
| Flash Memory | — | 128 KB (64K x 16) In-System Programmable |
| EEPROM | — | 4 KB |
| SRAM | — | 4 KB |
| GPIO Count | — | 53 I/O lines |
| ADC | — | 8-channel 10-bit |
| USART | — | 2 |
| TWI (I2C) | — | Yes, byte-oriented Two-Wire Interface |
| SPI | — | Yes |
| JTAG | — | Yes, on-chip debugging and boundary scan |
| Operating Temperature | — | [DATA_NEEDED: operating temperature range] |
| RoHS Status | — | [DATA_NEEDED: RoHS status] |
| Compatibility | — | 100% pin compatible with ATmega103 |