ATMEGA48PB-MU vs ATMEGA328PB-MU Comparison
Detailed side-by-side comparison of ATMEGA48PB-MU by Microchip Technology and ATMEGA328PB-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
ATMEGA48PB-MU - 8-bit AVR MCU 4KB Flash 20MHz QFN-32 | Microchip
ATMEGA48PB-MU β ActiveMicrochip Technology
ATMEGA328PB-MU - 8-Bit AVR MCU 20MHz 32KB Flash | Microchip
ATMEGA328PB-MU β ActiveSpecification Comparison
| Parameter | ATMEGA48PB-MU | ATMEGA328PB-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.94 | $1.19 |
| Core Architecture | AVR 8-bit RISC | AVR 8-bit RISC |
| Program Memory (Flash) | 4 KB (2K x 16) | β |
| EEPROM | 256 B | β |
| SRAM | 512 B | β |
| Maximum CPU Frequency | 20 MHz | β |
| Supply Voltage Range | 1.8 V to 5.5 V | β |
| General Purpose I/O | 27 lines | β |
| ADC Resolution | 10-bit, 8 channels | 10-bit |
| Timers/Counters | 3 (with compare modes) | β |
| Communication Interfaces | USART, SPI, Two-Wire Interface (I2C-compatible) | USART, 2 x SPI, 2 x I2C (TWI) |
| Low Power Technology | picoPower | picoPower, multiple sleep modes |
| Operating Temperature | -40 C to +85 C | -40C to +85C (Industrial) |
| Package | 32-VFQFN (5x5 mm) | 32-VFQFN (5x5 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Working Registers | 32 x 8-bit | β |
| In-System Programming | Yes (ISP, read-while-write) | β |
| Functional Safety Support | Yes (FuSa class per DigiKey listing) | β |
| RoHS Status | Compliant (green package) | Compliant (GREEN package per FindIC) |
| Core Size | β | 8-Bit |
| Maximum Clock Frequency | β | 20 MHz |
| Program Memory Size | β | 32 KB (16K x 16) FLASH |
| SRAM Size | β | 2 KB |
| EEPROM Size | β | 1 KB |
| Performance | β | Approx. 1 MIPS per MHz |
| I/O Count | β | 27 GPIO (incl. PORTE [3:0] on QFN) |
| Supply Voltage | β | [DATA_NEEDED: VCC range] |
| Timers | β | 2 x 8-bit, 1 x 16-bit |
| Programming | β | ISP, debugWIRING, self-programming boot loader |
| Safety Qualification | β | Functional Safety (FuSa) supported per DigiKey |