ATMEGA128A-AUR vs ATMEGA1284-AUR Comparison
Detailed side-by-side comparison of ATMEGA128A-AUR by Microchip Technology and ATMEGA1284-AUR 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
ATMEGA128A-AUR - 8-Bit AVR MCU 128KB Flash 16MHz TQFP-64 | Microchip
ATMEGA128A-AUR ✓ ActiveMicrochip Technology
ATMEGA1284-AUR - 8-Bit AVR MCU 128KB Flash 20MHz | Microchip
ATMEGA1284-AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA128A-AUR | ATMEGA1284-AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | AVR 8-bit RISC | 8-bit AVR RISC |
| Flash Memory | 128KB (64K x 16) In-System Programmable | — |
| EEPROM | 4KB | 4 KB |
| SRAM | 4KB | 16 KB |
| Maximum Clock Frequency | 16 MHz | 20 MHz |
| Supply Voltage Range | 2.7 V to 5.5 V | 1.8 V to 5.5 V |
| I/O Lines | 53 | — |
| Working Registers | 32 general purpose | — |
| Instruction Set | 133 powerful instructions, most single-cycle | 131 powerful instructions, most single-clock cycle |
| Timers/Counters | 4 flexible timer/counters with compare modes and PWM | — |
| USARTs | 2 | — |
| Serial Interfaces | TWI (I2C), SPI, 2x USART | — |
| Package | 64-TQFP (14x14 mm) | 44-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | Industrial range ([DATA_NEEDED: exact min/max C]) | -40C to +85C |
| Real-Time Counter | Yes | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | Compliant |
| Program Memory Size | — | 128 KB ISP Flash (64K x 16) |
| Throughput | — | Up to 20 MIPS at 20 MHz |
| Operating Voltage (Full 20 MHz) | — | 2.7 V to 5.5 V |
| General Purpose I/O Lines | — | 32 |
| General Purpose Working Registers | — | 32 |
| ADC | — | 8-channel, 10-bit successive approximation |
| USART Interfaces | — | 2 |
| Timer/Counters | — | 3 flexible timer/counters with compare modes and PWM |
| Packaging | — | Tape & Reel |
| Lifecycle Stage | — | Active |