ATMEGA644A-MUR vs ATMEGA1284P-MUR Comparison
Detailed side-by-side comparison of ATMEGA644A-MUR by Microchip Technology and ATMEGA1284P-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
ATMEGA644A-MUR - 8-bit AVR MCU 64KB Flash 20MHz | Microchip
ATMEGA644A-MUR β ActiveMicrochip Technology
ATMEGA1284P-MUR - 8-bit AVR MCU 20MHz 128KB Flash | Microchip
ATMEGA1284P-MUR β ActiveSpecification Comparison
| Parameter | ATMEGA644A-MUR | ATMEGA1284P-MUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.31 | $0.00 |
| Core Architecture | AVR enhanced RISC, 8-bit | β |
| Flash Memory | 64 KB (32K x 16) ISP Flash with read-while-write | β |
| SRAM | 4 KB | 16 KB |
| EEPROM | 2 KB | 4 KB |
| Maximum Clock Frequency | 20 MHz | β |
| CPU Throughput | Up to 20 MIPS at 20 MHz (1 MIPS per MHz) | β |
| General Purpose I/O | 32 I/O lines | β |
| Working Registers | 32 x 8-bit general purpose | 32 x 8 general purpose |
| USART Channels | 2 | β |
| Timers/Counters | 3 flexible timers with compare modes and PWM | β |
| Serial Interfaces | TWI (I2C-compatible), SPI, 2x USART | TWI (I2C, byte-oriented), SPI, 2x USART |
| Real-Time Counter | Yes | β |
| Package | 44-VQFN (7x7 mm) exposed pad | 44-VQFN (7x7 mm), exposed pad |
| Operating Temperature | Industrial, -40C to +85C | β |
| Supply Voltage Options | 2.5 V / 3.3 V / 5 V | β |
| Supply Voltage Range | [DATA_NEEDED: exact VCC min/max per datasheet table] | 2.7 V to 5.5 V |
| On-Chip Debug | JTAG | β |
| RoHS Status | Compliant | β |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (R suffix) | β |
| Core | β | AVR 8-bit RISC |
| Max Clock Frequency | β | 20 MHz |
| Flash Program Memory | β | 128 KB (64K x 16), In-System Programmable |
| Throughput | β | Up to 20 MIPS at 20 MHz |
| General Purpose I/O Lines | β | 32 |
| USARTs | β | 2 |
| Timer/Counters | β | 3 (with compare modes and PWM) |
| ADC | β | 8-channel, 10-bit |
| Real Time Counter | β | Yes (RTC) |
| Instructions | β | 131 instructions, most single-cycle |
| Multiplier | β | On-chip 2-cycle hardware multiplier |
| Debug / Programming | β | ISP (In-Circuit Serial Programming), JTAG |
| Life Cycle Stage | β | Active |