ATMEGA64A-AN vs ATMEGA644A-AU Comparison
Detailed side-by-side comparison of ATMEGA64A-AN by Microchip Technology and ATMEGA644A-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
ATMEGA64A-AN - 8-bit AVR MCU, 64KB Flash, 16MHz | Microchip
ATMEGA64A-AN ✓ ActiveMicrochip Technology
ATMEGA644A-AU - 8-bit AVR MCU 20MHz 64KB Flash | Microchip
ATMEGA644A-AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA64A-AN | ATMEGA644A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $7.02 | $5.40 |
| Core | AVR 8-bit RISC | — |
| Core Size | 8-bit | — |
| Maximum Clock Frequency | 16 MHz | — |
| Program Memory Size | 64 KB (32K x 16) Flash | 64 KB Flash (32K x 16) |
| EEPROM Size | 2 KB | — |
| SRAM Size | 4 KB | — |
| Number of I/Os | 53 | — |
| Working Registers | 32 general purpose | 32 general purpose registers |
| Timers/Counters | 4 flexible timer/counters with compare modes and PWM | — |
| USART | 2 | 2 |
| Serial Interfaces | 2x USART, TWI (I2C-compatible), SPI | TWI (2-wire, I2C-compatible), SPI |
| ADC | 8-channel, 10-bit | 8-channel, 10-bit |
| Real-Time Counter | Yes | — |
| Program Memory Type | ISP FLASH with read-while-write | ISP FLASH with Read-While-Write |
| Operating Temperature | -40C to +105C | -40C to +85C (Industrial) |
| Supply Voltage Range | [DATA_NEEDED: supply voltage range] | 1.8 V to 5.5 V |
| Package | 64-TQFP (14x14 mm) | 44-TQFP (10x10 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant (Green per FindIC listing) | — |
| Programming Method | In-System Programming (ISP) | — |
| Core Architecture | — | 8-bit AVR enhanced RISC |
| EEPROM | — | 2 KB |
| SRAM | — | 4 KB |
| Maximum CPU Speed | — | 20 MHz (20 MIPS) |
| General Purpose I/O | — | 32 lines |
| Timer/Counters | — | 3 (with compare modes and PWM) |
| Real Time Counter | — | Yes (RTC) |
| Device Series | — | ATmega644A |