ATMEGA328P-AU vs ATMEGA328P-AUR Comparison
Detailed side-by-side comparison of ATMEGA328P-AU by Microchip Technology and ATMEGA328P-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
ATMEGA328P-AU - 8-bit AVR MCU 20MHz 32KB Flash TQFP-32 | Microchip
ATMEGA328P-AU ✓ ActiveMicrochip Technology
ATMEGA328P-AUR - 8-bit AVR MCU, 32KB Flash, 20MHz, TQFP-32 | Microchip
ATMEGA328P-AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA328P-AU | ATMEGA328P-AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.74 | $2.18 |
| Core Architecture | AVR 8-bit RISC | AVR 8-bit RISC |
| CPU Speed | 20 MHz | — |
| Instruction Throughput | 20 MIPS | — |
| Flash Memory | 32 KB (16K x 16) | — |
| SRAM | 2 KB | 2 KB |
| EEPROM | 1 KB | 1 KB |
| Operating Voltage | 1.8 V to 5.5 V | — |
| Operating Temperature | -40 C to +85 C | — |
| I/O Pins | 23 | 23 programmable |
| Timers | 2 x 8-bit, 1 x 16-bit | 2 x 8-bit, 1 x 16-bit |
| PWM Channels | 6 | 6 |
| ADC | 8-channel 10-bit | 10-bit, up to 8 channels |
| Serial Interfaces | USART, SPI, I2C (TWI) | — |
| Package | TQFP-32 (7x7 mm, 0.8 mm pitch) | 32-pin TQFP, 7x7 mm, 0.8 mm pitch |
| Mounting Type | Surface Mount | Surface Mount |
| MSL Level | [DATA_NEEDED: MSL level] | 3 (168 hours) |
| RoHS Status | Compliant | Compliant |
| Program Memory (Flash) | — | 32 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) |
| Communication Interfaces | — | USART, SPI, I2C (TWI) |
| 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 |
| Throughput | — | 20 MIPS at 20 MHz |