ATMEGA644A-MUR vs ATMEGA164A-MU Comparison
Detailed side-by-side comparison of ATMEGA644A-MUR by Microchip Technology and ATMEGA164A-MU 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
ATMEGA164A-MU - 8-bit AVR MCU 16KB Flash 20MHz VQFN-44 | Microchip
ATMEGA164A-MU β ActiveSpecification Comparison
| Parameter | ATMEGA644A-MUR | ATMEGA164A-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.31 | $3.01 |
| Core Architecture | AVR enhanced RISC, 8-bit | AVR 8-bit RISC |
| Flash Memory | 64 KB (32K x 16) ISP Flash with read-while-write | β |
| SRAM | 4 KB | 1 KB |
| EEPROM | 2 KB | 512 B |
| Maximum Clock Frequency | 20 MHz | 20 MHz |
| CPU Throughput | Up to 20 MIPS at 20 MHz (1 MIPS per MHz) | β |
| General Purpose I/O | 32 I/O lines | 32 I/O lines |
| Working Registers | 32 x 8-bit general purpose | β |
| USART Channels | 2 | β |
| Timers/Counters | 3 flexible timers with compare modes and PWM | β |
| Serial Interfaces | TWI (I2C-compatible), SPI, 2x USART | β |
| Real-Time Counter | Yes | β |
| Package | 44-VQFN (7x7 mm) exposed pad | 44-VQFN (7x7 mm) with exposed pad |
| Operating Temperature | Industrial, -40C to +85C | -40C to +85C (industrial) |
| 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 |
| Program Memory (FLASH) | β | 16 KB (8K x 16) ISP |
| Throughput | β | Up to 20 MIPS (approx. 1 MIPS per MHz) |
| Instruction Set | β | 133 powerful instructions, most single-cycle |
| General Purpose Registers | β | 32 |
| ADC | β | 10-bit ADC (per family datasheet) |
| Peripherals | β | Real-time counter, timers/PWM, WDT, brown-out detection |
| Programming Interface | β | ISP (In-System Programmable), read-while-write |
| Life Cycle Stage | β | Active |