ATMEGA168-20MQR vs ATMEGA328P-MUR Comparison
Detailed side-by-side comparison of ATMEGA168-20MQR by Microchip Technology and ATMEGA328P-MUR 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
ATMEGA168-20MQR - 8-bit AVR MCU 20MHz 16KB Flash | Microchip
ATMEGA168-20MQR ✓ ActiveMicrochip Technology
ATMEGA328P-MUR - 8-bit AVR MCU 20MHz 32KB Flash VQFN-32 (Tape & Reel)
ATMEGA328P-MUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA168-20MQR | ATMEGA328P-MUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Processor | AVR | — |
| Core Size | 8-bit | — |
| Speed | 20 MHz | — |
| Program Memory Size | 16 KB (8K x 16) FLASH | — |
| EEPROM Size | 512 B | — |
| RAM Size | 1 KB SRAM | — |
| Number of I/O | 23 | — |
| General Purpose Working Registers | 32 x 8-bit | — |
| Supply Voltage Range | 4.5 V to 5.5 V (at 20 MHz); 2.0 V min per device family | — |
| Operating Temperature | -40C to +85C | -40 C to +85 C (industrial) |
| ADC Resolution | 10-bit | — |
| Number of ADC Channels | 8 (6 external + ADC6/ADC7 on QFN) | — |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | — |
| Connectivity | SPI, UART/USART, TWI (I2C-compatible) | — |
| Timers | 2 x 8-bit, 1 x 16-bit | — |
| Oscillator Type | Internal (calibrated RC) plus external crystal | — |
| Package | 32-VQFN (5x5 mm) Exposed Pad | 32-pin VQFN (5x5 mm, exposed pad) |
| Mounting Type | Surface Mount | Surface Mount |
| Programming | ISP, ICD, ICSP (2 I/O pins + reset) | — |
| Core Architecture | — | AVR 8-bit RISC |
| Maximum Clock Speed | — | 20 MHz |
| Instruction Throughput | — | 20 MIPS |
| Flash Program Memory | — | 32 KB (16 K x 16) |
| SRAM | — | 2 KB |
| EEPROM | — | 1 KB |
| Operating Voltage Range | — | 1.8 V to 5.5 V |
| General-Purpose I/O | — | 23 lines |
| ADC | — | 10-bit, 8 channels (6 + 2 dedicated QFN/VFP) |
| Timers/Counters | — | 2 x 8-bit, 1 x 16-bit |
| Communication Interfaces | — | USART, SPI (master/slave), TWI (I2C-compatible) |
| On-chip Oscillator | — | Internal 8 MHz calibrated, 128 kHz |
| Programming Interface | — | ISP, debugWIRE, TPI |
| RoHS Status | — | Compliant |