ATMEGA649A-AUR vs ATMEGA3290P-20AUR Comparison
Detailed side-by-side comparison of ATMEGA649A-AUR by Microchip Technology and ATMEGA3290P-20AUR 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
ATMEGA3290P-20AUR - AVR 8-Bit MCU 32KB 20MHz | Microchip
ATMEGA3290P-20AUR β ActiveSpecification Comparison
| Parameter | ATMEGA649A-AUR | ATMEGA3290P-20AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.72 | $0.00 |
| Core Architecture | 8-bit AVR RISC | AVR 8-bit RISC CMOS |
| Flash Program Memory | 64 KB (32K x 16) | β |
| EEPROM | 2 KB | 1 KB |
| SRAM | 4 KB | 2 KB |
| Maximum Clock Speed | 16 MHz | β |
| Supply Voltage Range | 4.5 V to 5.5 V | 2.7 V to 5.5 V |
| I/O Ports | 53 general-purpose I/O lines | β |
| LCD Controller | Yes, on-chip with internal contrast control | Yes, on-chip segment LCD driver |
| 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 |
| Program Memory (Flash) | β | 32 KB (16K x 16) ISP, read-while-write |
| Maximum Clock Frequency | β | 20 MHz |
| Peak Performance | β | 20 MIPS (approx. 1 MIPS/MHz) |
| Instruction Set | β | 130 instructions, most single-cycle |
| General-Purpose I/O | β | 69 lines |
| Working Registers | β | 32 |
| Debug / Programming | β | JTAG on-chip debug, ICSP self-programming |
| Low-Power Technology | β | picoPower |
| Operating Temperature | β | -40C to +85C (industrial) |
| Packing | β | Tape & Reel (R suffix) |
| RoHS Status | β | Green / RoHS compliant per distributor data |