ATMEGA644PA-ANR vs ATMEGA644PA-AU Comparison
Detailed side-by-side comparison of ATMEGA644PA-ANR by Microchip Technology and ATMEGA644PA-AU 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
ATMEGA644PA-ANR - 8-bit AVR MCU 64KB Flash 44-TQFP | Microchip
ATMEGA644PA-ANR β ActiveMicrochip Technology
ATMEGA644PA-AU - 8-bit AVR MCU, 20MHz, 64KB Flash | Microchip
ATMEGA644PA-AU β ActiveSpecification Comparison
| Parameter | ATMEGA644PA-ANR | ATMEGA644PA-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.35 | $2.49 |
| Core Processor | AVR | β |
| Core Size | 8-Bit | β |
| Speed | 16 MHz | β |
| Program Memory Size | 64 KB (32K x 16) | β |
| Program Memory Type | FLASH | β |
| EEPROM Size | 2 KB | β |
| RAM Size | 4 KB | β |
| Number of I/O | 32 | β |
| Oscillator Type | Internal | β |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | β |
| Connectivity | I2C, SPI, USART | β |
| ADC Resolution | 10-bit, 8 channels | β |
| Architecture Features | 131 instructions, most single-cycle, 2-cycle on-chip multiplier | β |
| Package / Case | 44-TQFP (10x10 mm) | β |
| Operating Temperature | -40C to +105C | [DATA_NEEDED: Operating Temperature Range] |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (TR) | β |
| Technology | picoPower | β |
| Voltage - Supply | [DATA_NEEDED: Voltage - Supply] | β |
| RoHS Status | Green (RoHS compliant per FindIC listing) | Compliant (RoHS Y per PartGenie) |
| Core Architecture | β | 8-bit AVR RISC |
| Maximum Clock Frequency | β | 20 MHz |
| Flash Memory | β | 64 KB (32K x 16), ISP, read-while-write |
| SRAM | β | 4 KB |
| EEPROM | β | 2 KB |
| General Purpose I/O | β | 32 lines |
| Working Registers | β | 32 general purpose registers |
| Timers/Counters | β | 3 flexible timer/counters with compare modes and PWM |
| USART Interfaces | β | 2 |
| Serial Interfaces | β | TWI (I2C-compatible, byte-oriented), SPI |
| ADC | β | 8-channel, 10-bit |
| Real-Time Counter | β | Yes |
| Supply Voltage | β | 2.5 V / 3.3 V / 5 V |
| Low Power Technology | β | picoPower |
| Package | β | 44-TQFP (10x10 mm) |
| MSL Rating | β | [DATA_NEEDED: Moisture Sensitivity Level] |
| Debug/Programming | β | ICSP via 2 I/O pins + reset; debug with MPLAB SNAP |