ATMEGA328P-PU vs ATMEGA168P-20PU Comparison
Detailed side-by-side comparison of ATMEGA328P-PU by Microchip Technology and ATMEGA168P-20PU 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-PU - 8-bit AVR MCU 32KB Flash 28-PDIP | Microchip
ATMEGA328P-PU β ActiveMicrochip Technology
ATMEGA168P-20PU - 8-Bit AVR MCU 20MHz 16KB Flash | Microchip
ATMEGA168P-20PU β ActiveSpecification Comparison
| Parameter | ATMEGA328P-PU | ATMEGA168P-20PU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.00 | $2.05 |
| Core Architecture | 8-bit AVR RISC | β |
| Flash Program Memory | 32 KB (16K x 16) | β |
| EEPROM | 1 KB | 512 B |
| SRAM | 2 KB | 1 KB |
| Maximum Clock Frequency | 20 MHz | 20 MHz |
| Typical Arduino Clock Frequency | 16 MHz | β |
| Supply Voltage Range | 4.5 V to 5.5 V | 2.7 V to 5.5 V |
| General Purpose I/O Lines | 23 | β |
| Working Registers | 32 general purpose | β |
| Instructions | 131 instructions, most single-cycle | 133, most single-cycle |
| Package | 28-PDIP | 28-PDIP (0.300 inch, 7.62 mm) |
| Mounting Type | Through Hole | Through Hole |
| In-System Programming | Yes (ISP, read-while-write) | β |
| ADC | 10-bit | β |
| Product Series | AVR ATmega | β |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | -40C to +85C (industrial) |
| Interface Peripherals | USART, SPI, TWI (I2C) | β |
| RoHS Status | [DATA_NEEDED: RoHS status] | Compliant (GREEN) |
| Core Processor | β | AVR 8-bit RISC |
| Core Size | β | 8-Bit |
| Flash Memory | β | 16 KB (8K x 16) |
| Number of I/O | β | 23 |
| ADC Resolution | β | 10-bit |
| ADC Channels | β | 8 (6 on PDIP package) |
| Timers/Counters | β | 3 (two 8-bit, one 16-bit) |
| Communication Interfaces | β | USART, SPI, I2C (TWI) |
| Programmability | β | ISP (In-System Programmable), debugWIRE |
| Lifecycle Status | β | Active (newer device ATMEGA168PA available) |
| MSL Rating | β | [DATA_NEEDED: MSL level] |