ATMEGA329P-20MUR vs ATMEGA329A-MUR Comparison
Detailed side-by-side comparison of ATMEGA329P-20MUR by Microchip Technology and ATMEGA329A-MUR 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
ATMEGA329P-20MUR - 8-bit AVR MCU, 32KB Flash, 20MHz, 64-QFN | Microchip
ATMEGA329P-20MUR ✓ ActiveMicrochip Technology
ATMEGA329A-MUR - 8-bit AVR MCU, 32KB Flash, 64-QFN | Microchip
ATMEGA329A-MUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA329P-20MUR | ATMEGA329A-MUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.40 | $3.61 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Program Memory (Flash) | 32 KB (16K x 16) | 32 KB (16K x 16) |
| SRAM | 2 KB | 2 KB |
| EEPROM | 1 KB | 1 KB |
| Maximum CPU Frequency | 20 MHz | — |
| Supply Voltage (Vcc) | 1.8 V to 5.5 V (5V operation at 20 MHz) | 4.5 V to 5.5 V |
| General-Purpose I/O | 54 | — |
| General-Purpose Registers | 32 | — |
| ADC | 10-bit successive approximation | 10-bit |
| Package | 64-QFN (9x9 mm) | 64-pin QFN (9 x 9 mm) with exposed pad |
| Operating Temperature | -40C to +85C (Industrial) | -40 C to +85 C (Industrial) |
| Mounting Type | Surface Mount | Surface Mount |
| LCD Controller | Yes (integrated) | — |
| JTAG Interface | Yes | — |
| picoPower Technology | Yes | — |
| RoHS Status | Compliant (Green) | Compliant ("Green") |
| MSL Level | [DATA_NEEDED: MSL level] | — |
| Maximum CPU Speed | — | 20 MHz |
| I/O Pins | — | 32 |
| On-chip LCD Driver | — | Yes (segmented LCD) |
| Communication | — | USART, SPI, TWI (I2C-compatible) |
| Timers/Counters | — | 2 x 8-bit, 1 x 16-bit |
| Instruction Set | — | 131 instructions, mostly single-cycle |