ATMEGA328P-AUR vs ATMEGA328P-MU Comparison
Detailed side-by-side comparison of ATMEGA328P-AUR by Microchip Technology and ATMEGA328P-MU 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
ATMEGA328P-AUR - 8-bit AVR MCU, 32KB Flash, 20MHz, TQFP-32 | Microchip
ATMEGA328P-AUR ✓ Active
Specification Comparison
| Parameter | ATMEGA328P-AUR | ATMEGA328P-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | NRND |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.18 | $2.85 |
| Core Architecture | AVR 8-bit RISC | AVR 8-bit RISC |
| Program Memory (Flash) | 32 KB | — |
| SRAM | 2 KB | 2 KB |
| EEPROM | 1 KB | 1 KB |
| Maximum Clock Frequency | 20 MHz | — |
| Supply Voltage Range | 1.8 V to 5.5 V | — |
| Operating Temperature Range | -40 C to +85 C (Industrial) | — |
| I/O Pins | 23 programmable | — |
| ADC | 10-bit, up to 8 channels | 10-bit, 8 channels (6 + 2 dedicated QFN/VFP) |
| PWM Channels | 6 | — |
| Timers | 2 x 8-bit, 1 x 16-bit | — |
| Communication Interfaces | USART, SPI, I2C (TWI) | USART, SPI (master/slave), TWI (I2C-compatible) |
| Package | 32-pin TQFP, 7x7 mm, 0.8 mm pitch | 32-pin VQFN (5x5 mm, exposed pad) |
| Mounting Type | Surface Mount | Surface Mount |
| Instruction Set | 131 instructions, mostly single-cycle | — |
| Working Registers | 32 x 8-bit | — |
| Watchdog Timer | Yes, with separate on-chip oscillator | — |
| Brown-out Detection | Yes | — |
| Power-Saving Modes | 6 software-selectable | — |
| MSL Level | 3 (168 hours) | — |
| RoHS Status | Compliant | Compliant |
| Throughput | 20 MIPS at 20 MHz | — |
| Maximum Clock Speed | — | 20 MHz |
| Instruction Throughput | — | 20 MIPS |
| Flash Program Memory | — | 32 KB (16 K x 16) |
| Operating Voltage Range | — | 1.8 V to 5.5 V |
| General-Purpose I/O | — | 23 lines |
| Timers/Counters | — | 2 x 8-bit, 1 x 16-bit |
| On-chip Oscillator | — | Internal 8 MHz calibrated, 128 kHz |
| Operating Temperature | — | -40 C to +85 C (industrial) |
| Programming Interface | — | ISP, debugWIRE, TPI |