ATMEGA328-MU vs ATMEGA168PA-MU Comparison
Detailed side-by-side comparison of ATMEGA328-MU by Microchip Technology and ATMEGA168PA-MU 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
ATMEGA328-MU - 8-bit AVR MCU 32KB Flash 20MHz | Microchip
ATMEGA328-MU ✓ ActiveMicrochip Technology
ATMEGA168PA-MU - 8-bit AVR MCU 16KB 20MHz VQFN-32 | Microchip
ATMEGA168PA-MU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA328-MU | ATMEGA168PA-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.20 | $1.72 |
| Core Architecture | AVR 8-bit RISC | — |
| Flash Program Memory | 32 KB (16K x 16) | — |
| SRAM | 2 KB | 1 KB |
| EEPROM | 1 KB | 512 B |
| Maximum CPU Speed | 20 MHz (20 MIPS) | — |
| Supply Voltage | 1.8 V to 5.5 V | — |
| Operating Temperature (Industrial) | -40C to +85C | — |
| I/O Pins | 23 general-purpose | — |
| ADC | 10-bit, 8 channels, up to 15 kSPS | — |
| Timers | 2 x 8-bit + 1 x 16-bit | Two 8-bit, One 16-bit |
| Communication Interfaces | 1x USART, 1x SPI, 1x I2C (TWI) | I2C, SPI, USART |
| Package | 32-pin VQFN (5x5 mm) with EP | 32-VQFN (5x5 mm, 0.5 mm pitch, MLF-32) |
| Mounting Type | Surface Mount | Surface Mount |
| On-chip Debug | debugWIRE | — |
| Instruction Set | 131 instructions, mostly single-cycle | — |
| Power-down Mode Current | < 1 uA (typical, datasheet) | — |
| MSL Level | MSL3 (per JEDEC J-STD-020, typical for VQFN) | — |
| Core Processor | — | AVR 8-bit RISC |
| Core Size | — | 8-bit |
| Speed | — | 20 MHz |
| Flash Memory | — | 16 KB (8K x 16) |
| Supply Voltage Range | — | 1.8 V to 5.5 V |
| Number of I/O | — | 23 |
| ADC Resolution | — | 10-bit |
| Number of ADC Channels | — | 6 |
| Peripherals | — | Brown-out Detect/Reset, POR, PWM, WDT |
| Operating Temperature | — | -40C to +85C |
| Data Bus Width | — | 8 Bit |
| RoHS Status | — | Compliant (GREEN) |
| Oscillator Type | — | Internal |