ATMEGA1281-16AU vs ATMEGA128-16ANR Comparison
Detailed side-by-side comparison of ATMEGA1281-16AU by Microchip Technology and ATMEGA128-16ANR 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
ATMEGA1281-16AU - 8-Bit AVR MCU 128KB Flash 16MHz | Microchip
ATMEGA1281-16AU ✓ ActiveMicrochip Technology
ATMEGA128-16ANR - 8-Bit AVR MCU 128KB 16MHz TQFP-64 | Microchip (Tape & Reel)
ATMEGA128-16ANR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA1281-16AU | ATMEGA128-16ANR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $8.27 | $7.44 |
| Core Architecture | AVR 8-bit RISC | 8-bit AVR RISC |
| Maximum Clock Frequency | 16 MHz | — |
| Flash Memory | 128 KB (64K x 16) ISP FLASH | 128 KB (64K x 16) |
| SRAM | 8 KB (8K x 8) | 4 KB |
| EEPROM | 4 KB (4K x 8) | 4 KB |
| 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) | unknown |
| Core Size | — | 8-bit |
| Max Clock Frequency | — | 16 MHz |
| Peak Throughput | — | 16 MIPS at 16 MHz |
| Operating Voltage Range | — | 4.5 V to 5.5 V |
| General Purpose I/O | — | 53 lines |
| Timers/Counters | — | 4 with compare modes and PWM |
| USART | — | 2 |
| Communication Interfaces | — | 2x USART, TWI (I2C), SPI |
| Debug / Boundary Scan | — | JTAG (IEEE 1149.1 interface for on-chip debugging) |
| Instructions | — | 131 instructions, most single-cycle |
| Working Registers | — | 32 general purpose |