ATMEGA329PA-AUR vs ATMEGA649P-AUR Comparison
Detailed side-by-side comparison of ATMEGA329PA-AUR by Microchip Technology and ATMEGA649P-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
ATMEGA329PA-AUR - 8-bit AVR MCU, 32KB Flash, 20MHz, 64-TQFP | Microchip
ATMEGA329PA-AUR ✓ ActiveMicrochip Technology
ATMEGA649P-AUR - AVR 8-bit MCU 64KB Flash LCD | Microchip
ATMEGA649P-AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA329PA-AUR | ATMEGA649P-AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.94 | $4.72 |
| Core Architecture | 8-bit AVR RISC (Harvard) | 8-bit AVR RISC |
| Family | ATmega (picoPower) | — |
| Program Memory (Flash) | 32 KB | — |
| EEPROM | 1 KB | 2 KB |
| SRAM | 2 KB | 4 KB |
| Maximum CPU Speed | 20 MHz | 16 MHz |
| Supply Voltage | 2.7 V to 5.5 V (4.5 V to 5.5 V at 20 MHz) | 1.8 V to 5.5 V (picoPower family) |
| General-Purpose I/O | 54 | — |
| Timers/Counters | Two 8-bit + One 16-bit | — |
| ADC | 8-channel, 10-bit | — |
| Serial Interfaces | USART, SPI, TWI (I2C) | — |
| LCD Controller | Up to 4x25 segments (integrated) | Integrated segment LCD driver |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (industrial, per A-grade suffix) |
| Package | 64-pin TQFP (14x14 mm, 0.8 mm pitch) | 64TQFP (TQFP-64) |
| Mounting Type | Surface Mount | Surface Mount |
| Programming Interface | JTAG / debugWIRE / ISP | — |
| RoHS Status | Compliant | — |
| MSL Level | 3 (168 hours) | — |
| Flash Memory | — | 64 KB ISP Flash (read-while-write) |
| General Purpose I/O | — | 54/69 lines |
| Working Registers | — | 32 general purpose |
| Debug Interface | — | JTAG (on-chip debug, boundary scan) |
| Low Power Technology | — | picoPower |
| Packing | — | Tape & Reel (T&R) |
| RoHS / Green | — | GREEN package |
| Product Status | — | Active |