ATMEGA128A-AU vs ATMEGA64A-AUR Comparison
Detailed side-by-side comparison of ATMEGA128A-AU by Microchip Technology and ATMEGA64A-AUR 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
ATMEGA128A-AU - 8-bit AVR MCU 128KB Flash 16MHz TQFP-64 | Microchip
ATMEGA128A-AU ✓ ActiveMicrochip Technology
ATMEGA64A-AUR - 8-bit AVR MCU 64KB Flash 16MHz TQFP-64 | Microchip
ATMEGA64A-AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA128A-AU | ATMEGA64A-AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.30 | $4.10 |
| Core Processor | AVR | — |
| Core Size | 8-Bit | — |
| Architecture | Enhanced RISC, 133 instructions | — |
| Max Clock Frequency | 16 MHz | — |
| Flash Memory | 128 KB (64K x 16), In-System Programmable, read-while-write | — |
| EEPROM | 4 KB | — |
| SRAM | 4 KB | — |
| Supply Voltage Range | 2.7 V to 5.5 V | — |
| General Purpose I/O | 53 lines | 53 lines |
| Working Registers | 32 general purpose | 32 general purpose |
| Timers/Counters | 4 flexible timer/counters with compare modes and PWM | 4 flexible timer/counters with compare modes and PWM |
| Communication Interfaces | 2x USART, TWI (I2C), SPI | 2x USART, SPI, TWI (I2C compatible) |
| ADC | 8-channel, 10-bit | 8-channel, 10-bit (from manufacturer product summary) |
| Real-Time Counter | Yes (RTC) | — |
| Debug / Boundary Scan | JTAG (IEEE 1149.1) | — |
| Package | 64-TQFP (14x14 mm) | 64-TQFP (14x14mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | — |
| Projected End of Life | 2048-10-03 (per distributor lifecycle data) | — |
| Core Architecture | — | 8-bit AVR RISC |
| Program Memory Size | — | 64KB (32K x 16) ISP Flash |
| EEPROM Size | — | 2KB |
| SRAM Size | — | 4KB |
| Maximum CPU Speed | — | 16MHz |
| Oscillator Type | — | Internal |
| Debug / Test | — | JTAG for on-chip debug and boundary scan |
| Operating Temperature Range | — | Industrial (-40C to +85C) |
| Packaging | — | Tape & Reel (TR) |
| RoHS Status | — | Compliant (GREEN per FindIC listing) |
| Pin Compatibility | — | 100% pin compatible with ATmega103 |