ATMEGA1281-16AUR vs ATMEGA2561V-8AUR Comparison
Detailed side-by-side comparison of ATMEGA1281-16AUR by Microchip Technology and ATMEGA2561V-8AUR 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
ATMEGA1281-16AUR - 8-Bit AVR MCU 128KB Flash 16MHz | Microchip (Tape & Reel)
ATMEGA1281-16AUR ✓ ActiveMicrochip Technology
ATMEGA2561V-8AUR - 8-bit AVR MCU 256KB Flash TQFP-64 | Microchip
ATMEGA2561V-8AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA1281-16AUR | ATMEGA2561V-8AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | AVR 8-bit RISC | — |
| Maximum Clock Frequency | 16 MHz | 8 MHz |
| Flash Memory | 128 KB (64K x 16) ISP FLASH | — |
| SRAM | 8 KB (8K x 8) | — |
| EEPROM | 4 KB (4K x 8) | — |
| Supply Voltage | 2.7 V to 5.5 V | — |
| I/O Pins | 54 | — |
| ADC | 8-channel 10-bit | 8-channel, 10-bit |
| USARTs | 2 | — |
| Package | 64-TQFP (14 x 14 mm) | 64-TQFP (14x14 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C | -40C to +85C |
| Data Bus Width | 8 Bit | — |
| Oscillator Type | Internal | — |
| Life Cycle Stage | ACTIVE | — |
| RoHS Status | Green / RoHS compliant (per Jotrin: GREEN packaging) | Compliant (GREEN series per distributor data) |
| Core | — | AVR 8-bit RISC |
| Program Memory Size | — | 256 KB (128K x 16) ISP Flash |
| SRAM Size | — | 8 KB |
| EEPROM Size | — | 4 KB |
| Throughput | — | up to 16 MIPS (family rating; 8 MIPS at 8 MHz) |
| Instruction Set | — | 131 instructions, mostly single-cycle |
| General Purpose I/O | — | 86 lines |
| Timer/Counters | — | 6 flexible timer/counters with compare modes and PWM |
| USART | — | 4 programmable serial USART |
| Serial Interfaces | — | SPI (Master/Slave), TWI (byte-oriented 2-wire) |
| Operating Voltage | — | [DATA_NEEDED: Operating Voltage Range] |
| Packaging | — | Tape & Reel (R suffix) |
| Special Peripherals | — | Watchdog timer with separate on-chip oscillator, analog comparator, JTAG, real-time counter |