ATMEGA644-20MUR vs ATMEGA1284-MUR Comparison
Detailed side-by-side comparison of ATMEGA644-20MUR by Microchip Technology and ATMEGA1284-MUR 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
ATMEGA644-20MUR - 8-bit AVR MCU 64KB Flash 20MHz | Microchip
ATMEGA644-20MUR β ActiveMicrochip Technology
ATMEGA1284-MUR - 8-bit AVR MCU, 128KB Flash, 20MHz | Microchip
ATMEGA1284-MUR β ActiveSpecification Comparison
| Parameter | ATMEGA644-20MUR | ATMEGA1284-MUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.05 | $1.72 |
| Core Architecture | 8-bit AVR RISC | β |
| Max Clock Frequency | 20 MHz | β |
| Program Memory (Flash) | 64KB (32K x 16) | β |
| SRAM | 4KB | 16 KB |
| EEPROM | 2KB | 4 KB |
| Supply Voltage Range | 4.5 V to 5.5 V | β |
| Data Bus Width | 8 Bit | β |
| General Purpose I/O | 32 I/O lines | β |
| Timers/Counters | 3 (with compare modes and PWM) | β |
| Communication Interfaces | USART, SPI, TWI (I2C) | β |
| ADC | 10-bit | β |
| Programming Interface | ICSP (In-Circuit Serial Programming), debugWIRE | β |
| Operating Temperature | Industrial (-40C to +85C) | β |
| Package | 44-VQFN (7x7 mm) Exposed Pad | 44-VQFN (7x7 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | [DATA_NEEDED: RoHS status] | β |
| Lifecycle Stage | ACTIVE | β |
| Core Processor | β | AVR |
| Core Size | β | 8-Bit |
| Speed | β | 20 MHz |
| Flash Memory | β | 128 KB (64K x 16) |
| Operating Voltage | β | 2.5 V / 3.3 V / 5 V |
| Number of I/O | β | 32 |
| Connectivity | β | I2C, SPI, UART/USART |
| USARTs | β | 2 |
| ADC Resolution | β | 10-bit |
| Timers | β | 3 x timer/counter with compare modes and PWM |
| Real-Time Counter | β | Yes |
| Packaging | β | Tape & Reel (TR) |
| Product Status | β | Active |
| Architecture | β | AVR enhanced RISC, 133 instructions, mostly single-cycle |