ATMEGA1284-AUR vs ATMEGA128A-AUR Comparison
Detailed side-by-side comparison of ATMEGA1284-AUR by Microchip Technology and ATMEGA128A-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
ATMEGA1284-AUR
ATMEGA1284-AUR - 8-Bit AVR MCU 128KB Flash 20MHz | Microchip
ATMEGA1284-AUR β ActiveMicrochip Technology
ATMEGA128A-AUR - 8-Bit AVR MCU 128KB Flash 16MHz TQFP-64 | Microchip
ATMEGA128A-AUR β ActiveSpecification Comparison
| Parameter | ATMEGA1284-AUR | ATMEGA128A-AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.61 | $3.12 |
| Core Architecture | 8-bit AVR RISC | AVR 8-bit RISC |
| Program Memory Size | 128 KB ISP Flash (64K x 16) | β |
| SRAM | 16 KB | 4KB |
| EEPROM | 4 KB | 4KB |
| Maximum Clock Frequency | 20 MHz | 16 MHz |
| Throughput | Up to 20 MIPS at 20 MHz | β |
| Supply Voltage Range | 1.8 V to 5.5 V | 2.7 V to 5.5 V |
| Operating Voltage (Full 20 MHz) | 2.7 V to 5.5 V | β |
| General Purpose I/O Lines | 32 | β |
| General Purpose Working Registers | 32 | β |
| Instruction Set | 131 powerful instructions, most single-clock cycle | 133 powerful instructions, most single-cycle |
| ADC | 8-channel, 10-bit successive approximation | β |
| USART Interfaces | 2 | β |
| Timer/Counters | 3 flexible timer/counters with compare modes and PWM | β |
| Package | 44-pin TQFP (10x10 mm) | 64-TQFP (14x14 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel | β |
| Operating Temperature | -40C to +85C | Industrial range ([DATA_NEEDED: exact min/max C]) |
| RoHS Status | Compliant | [DATA_NEEDED: RoHS status] |
| Lifecycle Stage | Active | β |
| Flash Memory | β | 128KB (64K x 16) In-System Programmable |
| I/O Lines | β | 53 |
| Working Registers | β | 32 general purpose |
| Timers/Counters | β | 4 flexible timer/counters with compare modes and PWM |
| USARTs | β | 2 |
| Serial Interfaces | β | TWI (I2C), SPI, 2x USART |
| Real-Time Counter | β | Yes |