ATMEGA649A-AUR vs ATMEGA640-16AUR Comparison
Detailed side-by-side comparison of ATMEGA649A-AUR by Microchip Technology and ATMEGA640-16AUR 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
ATMEGA649A-AUR - 8-Bit AVR MCU, 64KB Flash, TQFP-64 | Microchip
ATMEGA649A-AUR β ActiveMicrochip Technology
ATMEGA640-16AUR - 8-bit AVR MCU 64KB Flash 16MHz | Microchip
ATMEGA640-16AUR β ActiveSpecification Comparison
| Parameter | ATMEGA649A-AUR | ATMEGA640-16AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.72 | $5.90 |
| Core Architecture | 8-bit AVR RISC | β |
| Flash Program Memory | 64 KB (32K x 16) | β |
| EEPROM | 2 KB | 4 KB |
| SRAM | 4 KB | 8 KB |
| Maximum Clock Speed | 16 MHz | β |
| Supply Voltage Range | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| I/O Ports | 53 general-purpose I/O lines | β |
| LCD Controller | Yes, on-chip with internal contrast control | β |
| JTAG Interface | Yes (boundary-scan, on-chip debug, programming) | β |
| Instructions | 130 instructions, most single-cycle | β |
| Package | 64-TQFP (14x14 mm) | 100-TQFP (14x14 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Flash Programming | In-System Programmable (ISP), read-while-write | β |
| Operating Temperature Grade | Industrial | β |
| Data Bus Width | 8 bit | β |
| Lifecycle Status | Active | β |
| Core | β | AVR 8-bit RISC |
| Core Size | β | 8-bit |
| Max Clock Frequency | β | 16 MHz |
| Flash Memory | β | 64 KB (32K x 16) |
| Operating Temperature | β | -40C to +85C (industrial) |
| GPIO Count | β | 86 |
| Timers/Counters | β | 6 (flexible timer/counters) |
| ADC Resolution | β | 10-bit |
| ADC Channels | β | 8/16-channel |
| USART | β | 2 (programmable serial USART) |
| SPI | β | Yes (master/slave SPI serial interface) |
| TWI (I2C) | β | Yes (byte-oriented 2-wire serial interface) |
| Watchdog Timer | β | Programmable, with separate on-chip oscillator |
| Packaging | β | Tape & Reel (R suffix) |
| RoHS Status | β | Compliant |