ATMEGA168A-AUR vs ATMEGA328P-AUR Comparison
Detailed side-by-side comparison of ATMEGA168A-AUR 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-AUR - 8-bit AVR MCU, 32KB Flash, 20MHz, TQFP-32 | Microchip
ATMEGA328P-AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA168A-AUR | ATMEGA328P-AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.45 | $2.18 |
| Core Processor | AVR | — |
| Core Size | 8-Bit | — |
| Speed | 20 MHz | — |
| Program Memory Size | 16 KB (8K x 16) FLASH | — |
| EEPROM Size | 512 B | — |
| RAM Size | 1 KB | — |
| Supply Voltage Range | 2.7 V to 5.5 V | 1.8 V to 5.5 V |
| Number of I/O | 23 | — |
| Connectivity | I2C, SPI, UART/USART | — |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | — |
| Timers | Three flexible timer/counters with compare modes | 2 x 8-bit, 1 x 16-bit |
| Data Converters | 10-bit ADC | — |
| Instructions | 133 powerful instructions, most single-cycle | — |
| Package | 32-TQFP (7x7 mm) | 32-pin TQFP, 7x7 mm, 0.8 mm pitch |
| Mounting Type | Surface Mount | Surface Mount |
| Programming | In-System Programmable (ISP) FLASH with read-while-write | — |
| Lifecycle Stage | Active | — |
| Core Architecture | — | AVR 8-bit RISC |
| Program Memory (Flash) | — | 32 KB |
| SRAM | — | 2 KB |
| EEPROM | — | 1 KB |
| Maximum Clock Frequency | — | 20 MHz |
| Operating Temperature Range | — | -40 C to +85 C (Industrial) |
| I/O Pins | — | 23 programmable |
| ADC | — | 10-bit, up to 8 channels |
| PWM Channels | — | 6 |
| 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 |
| MSL Level | — | 3 (168 hours) |
| RoHS Status | — | Compliant |
| Throughput | — | 20 MIPS at 20 MHz |