ATMEGA328P-PU vs ATMEGA168PA-PN Comparison
Detailed side-by-side comparison of ATMEGA328P-PU by Microchip Technology and ATMEGA168PA-PN 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 ✓ ActiveMicrochip Technology
ATMEGA168PA-PN - 8-bit AVR MCU 16KB Flash PDIP-28 | Microchip
ATMEGA168PA-PN ✓ ActiveSpecification Comparison
| Parameter | ATMEGA328P-PU | ATMEGA168PA-PN |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | 8-bit AVR RISC | — |
| Flash Program Memory | 32 KB (16K x 16) | — |
| EEPROM | 1 KB | — |
| SRAM | 2 KB | — |
| Maximum Clock Frequency | 20 MHz | 20 MHz |
| Typical Arduino Clock Frequency | 16 MHz | — |
| Supply Voltage Range | 4.5 V to 5.5 V | 2.7 V to 5.5 V |
| General Purpose I/O Lines | 23 | 23 |
| Working Registers | 32 general purpose | — |
| Instructions | 131 instructions, most single-cycle | 131 instructions, most single-cycle |
| Package | 28-PDIP | — |
| Mounting Type | Through Hole | Through Hole |
| In-System Programming | Yes (ISP, read-while-write) | — |
| ADC | 10-bit | 10-bit, 15 kSPS, 8 channels |
| Product Series | AVR ATmega | — |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | — |
| Interface Peripherals | USART, SPI, TWI (I2C) | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | Compliant |
| Core | — | AVR 8-bit RISC |
| Data Bus Width | — | 8 bit |
| Program Memory Size | — | 16 KB (8K x 16) Flash |
| SRAM Size | — | 1 KB |
| EEPROM Size | — | 512 B |
| Supply Voltage Grades | — | 2.5V / 3.3V / 5V capable per FindIC listing |
| General Purpose Working Registers | — | 32 x 8 |
| Communication Interfaces | — | 1x USART, 1x SPI, 1x TWI (I2C) |
| Timers | — | 2x 8-bit, 1x 16-bit |
| Package Type | — | 28-PDIP |
| Programming/Debug | — | ICSP (In-Circuit Serial Programming) |
| Life Cycle Stage | — | Active |