ATMEGA168P-20AU vs ATMEGA328P-AU Comparison
Detailed side-by-side comparison of ATMEGA168P-20AU 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-20AU
ATMEGA168P-20AU - 8-Bit AVR 16KB Flash MCU | Microchip
ATMEGA168P-20AU β ActiveMicrochip Technology
ATMEGA328P-AU
ATMEGA328P-AU - 8-bit AVR MCU 20MHz 32KB Flash | Microchip
ATMEGA328P-AU β ActiveSpecification Comparison
| Parameter | ATMEGA168P-20AU | ATMEGA328P-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.91 | $1.90 |
| Core Processor | AVR 8-bit RISC | β |
| Program Memory Size | 16 KB (8K x 16) Flash | β |
| EEPROM Size | 512 B | β |
| SRAM Size | 1 KB | β |
| Maximum Clock Frequency | 20 MHz | β |
| Operating Voltage Range | 2.7 V to 5.5 V | β |
| Number of I/O Lines | 23 | β |
| General Purpose Registers | 32 | β |
| Instruction Set | 133 instructions, most single-cycle | β |
| ADC Resolution | 10-bit | β |
| Timer/Counters | 3 (two 8-bit, one 16-bit) with compare modes | β |
| Serial Interfaces | USART, SPI, TWI (I2C) | USART, SPI, I2C |
| Package | 32-TQFP (7x7 mm) | TQFP-32 (7x7 mm, 0.8 mm pitch) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40 C to +85 C (industrial) | -40C to +85C |
| Programming Interface | ISP / ICSP (SPI-based) | β |
| RoHS Status | Compliant (GREEN) | Compliant |
| Supply Current (Active) | [DATA_NEEDED: active supply current] | β |
| Core | β | AVR 8-bit RISC |
| Max Clock Frequency | β | 20 MHz |
| Flash Memory | β | 32 KB |
| EEPROM | β | 1 KB |
| SRAM | β | 2 KB |
| Operating Voltage | β | 1.8 V to 5.5 V |
| I/O Lines | β | 23 |
| Timers | β | 2 x 8-bit, 1 x 16-bit |
| PWM Channels | β | 6 |
| ADC | β | 8-channel, 10-bit |
| Power-down Current | β | 0.2 uA typical |
| Programming | β | ISP via SPI, debugWIRE |