ATMEGA168P-20AUR vs ATMEGA328P-AU Comparison
Detailed side-by-side comparison of ATMEGA168P-20AUR by Microchip Technology and ATMEGA328P-AU 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
ATMEGA168P-20AUR - 8-bit AVR MCU 16KB Flash 20MHz | Microchip
ATMEGA168P-20AUR β ActiveMicrochip Technology
ATMEGA328P-AU - 8-bit AVR MCU 20MHz 32KB Flash TQFP-32 | Microchip
ATMEGA328P-AU β ActiveSpecification Comparison
| Parameter | ATMEGA168P-20AUR | ATMEGA328P-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.49 | $1.85 |
| Core Architecture | 8-bit AVR RISC | β |
| Flash Memory | 16 KB (8K x 16) ISP | β |
| SRAM | 1 KB | 2 KB |
| EEPROM | 512 B | 1 KB |
| Maximum Clock Frequency | 20 MHz | β |
| Supply Voltage Range | 2.7 V to 5.5 V | β |
| Number of I/O Lines | 23 | β |
| ADC Resolution | 10 bit | β |
| ADC Channels | 8 (TQFP/QFN packages) | β |
| Communication Interfaces | USART, SPI, I2C (TWI) | β |
| Timers | 2 x 8-bit, 1 x 16-bit | 2 x 8-bit, 1 x 16-bit |
| PWM Channels | Yes (timer compare outputs) | 6 |
| Debug Interface | debugWIRE on-chip debugging | β |
| Programming | In-Circuit Serial Programming (ICSP) | β |
| Low Power Technology | picoPower | β |
| Operating Temperature | -40C to +85C | -40C to +85C |
| Package | 32-TQFP (7x7 mm) | TQFP-32 (7x7 mm, 0.8 mm pitch) |
| Mounting Type | Surface Mount | Surface Mount |
| Lifecycle Status | Active | β |
| Core Processor | β | AVR 8-bit RISC |
| Core Size | β | 8-bit |
| Speed | β | 20 MHz |
| Performance | β | 20 MIPS at 20 MHz |
| FLASH Program Memory | β | 32 KB (16K x 16) |
| Operating Voltage Range | β | 1.8 V to 5.5 V |
| General Purpose I/O | β | 23 lines |
| ADC | β | 8-channel, 10-bit |
| Serial Interfaces | β | USART, SPI, I2C (TWI) |
| Sleep Mode Current | β | 0.2 uA typical (Power-down, picoPower) |
| FLASH Endurance | β | 10,000 write/erase cycles |
| Debug System | β | debugWIRE on-chip debug |
| RoHS Status | β | Compliant |