ATMEGA3290P-20AUR vs ATMEGA645P-AUR Comparison
Detailed side-by-side comparison of ATMEGA3290P-20AUR by Microchip Technology and ATMEGA645P-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
ATMEGA3290P-20AUR - AVR 8-Bit MCU 32KB 20MHz | Microchip
ATMEGA3290P-20AUR ✓ ActiveMicrochip Technology
ATMEGA645P-AUR - 8-bit AVR MCU, 64KB Flash, 16MHz | Microchip
ATMEGA645P-AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA3290P-20AUR | ATMEGA645P-AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.00 | $4.50 |
| Core Architecture | AVR 8-bit RISC CMOS | AVR 8-bit RISC |
| Program Memory (Flash) | 32 KB (16K x 16) ISP, read-while-write | — |
| SRAM | 2 KB | 4KB |
| EEPROM | 1 KB | 2KB |
| Maximum Clock Frequency | 20 MHz | 16 MHz |
| Peak Performance | 20 MIPS (approx. 1 MIPS/MHz) | — |
| Instruction Set | 130 instructions, most single-cycle | — |
| General-Purpose I/O | 69 lines | — |
| Working Registers | 32 | — |
| Supply Voltage Range | 2.7 V to 5.5 V | — |
| LCD Controller | Yes, on-chip segment LCD driver | — |
| Debug / Programming | JTAG on-chip debug, ICSP self-programming | — |
| Low-Power Technology | picoPower | — |
| Package | 100-TQFP (14x14 mm) | 64-TQFP (14x14 mm) |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C (A = industrial grade) |
| Mounting Type | Surface Mount | Surface Mount |
| Packing | Tape & Reel (R suffix) | — |
| RoHS Status | Green / RoHS compliant per distributor data | [DATA_NEEDED: RoHS compliance status] |
| Data Bus Width | — | 8 Bit |
| Flash Memory | — | 64KB (32K x 16) In-System Programmable |
| Supply Voltage | — | 4.5 V to 5.5 V (16 MHz industrial speed grade) |
| I/O Ports | — | 53 I/O lines |
| Programming Interface | — | ICSP (In-Circuit Serial Programming) |
| General Purpose Registers | — | 32 directly connected to ALU |
| Lifecycle Stage | — | Active |
| Packaging | — | Tape & Reel (R suffix) |
| MSL Rating | — | [DATA_NEEDED: moisture sensitivity level] |