ATMEGA3290P-20AUR vs ATMEGA329PA-AUR Comparison
Detailed side-by-side comparison of ATMEGA3290P-20AUR by Microchip Technology and ATMEGA329PA-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
ATMEGA329PA-AUR - 8-bit AVR MCU, 32KB Flash, 20MHz, 64-TQFP | Microchip
ATMEGA329PA-AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA3290P-20AUR | ATMEGA329PA-AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | AVR 8-bit RISC CMOS | 8-bit AVR RISC (Harvard) |
| Program Memory (Flash) | 32 KB (16K x 16) ISP, read-while-write | 32 KB |
| SRAM | 2 KB | 2 KB |
| EEPROM | 1 KB | 1 KB |
| Maximum Clock Frequency | 20 MHz | — |
| Peak Performance | 20 MIPS (approx. 1 MIPS/MHz) | — |
| Instruction Set | 130 instructions, most single-cycle | — |
| General-Purpose I/O | 69 lines | 54 |
| Working Registers | 32 | — |
| Supply Voltage Range | 2.7 V to 5.5 V | — |
| LCD Controller | Yes, on-chip segment LCD driver | Up to 4x25 segments (integrated) |
| Debug / Programming | JTAG on-chip debug, ICSP self-programming | — |
| Low-Power Technology | picoPower | — |
| Package | 100-TQFP (14x14 mm) | 64-pin TQFP (14x14 mm, 0.8 mm pitch) |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C (Industrial) |
| Mounting Type | Surface Mount | Surface Mount |
| Packing | Tape & Reel (R suffix) | — |
| RoHS Status | Green / RoHS compliant per distributor data | Compliant |
| Family | — | ATmega (picoPower) |
| Maximum CPU Speed | — | 20 MHz |
| Supply Voltage | — | 2.7 V to 5.5 V (4.5 V to 5.5 V at 20 MHz) |
| Timers/Counters | — | Two 8-bit + One 16-bit |
| ADC | — | 8-channel, 10-bit |
| Serial Interfaces | — | USART, SPI, TWI (I2C) |
| Programming Interface | — | JTAG / debugWIRE / ISP |
| MSL Level | — | 3 (168 hours) |