ATMEGA48PA-MU vs ATMEGA328P-MU Comparison
Detailed side-by-side comparison of ATMEGA48PA-MU by Microchip Technology and ATMEGA328P-MU by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | ATMEGA48PA-MU | ATMEGA328P-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | NRND |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.08 | $2.85 |
| Core Architecture | AVR 8-bit RISC | AVR 8-bit RISC |
| Flash Memory | 4 KB (2K x 16) ISP Flash | — |
| EEPROM | 256 B | 1 KB |
| SRAM | 512 B | 2 KB |
| Maximum Clock Frequency | 20 MHz | — |
| Supply Voltage Range | 1.8 V to 5.5 V (picoPower) | — |
| General Purpose I/O | 23 lines | — |
| Working Registers | 32 x 8-bit | — |
| Timers/Counters | 2 x 8-bit, 1 x 16-bit with compare modes | 2 x 8-bit, 1 x 16-bit |
| ADC | 10-bit, 8 single-ended channels, differential with programmable gain | 10-bit, 8 channels (6 + 2 dedicated QFN/VFP) |
| Communication Interfaces | USART, SPI, Two-Wire Interface (I2C) | USART, SPI (master/slave), TWI (I2C-compatible) |
| Sleep Modes | 6 modes incl. power-down at 0.1 uA (picoPower) | — |
| Internal Oscillator | Calibrated RC oscillator (8 MHz nominal, divided options) | — |
| Brown-out Detector | Yes, on-chip | — |
| Operating Temperature | -40C to +85C (industrial) | -40 C to +85 C (industrial) |
| Package | 32-pin VQFN (5x5 mm, 0.5 mm pitch), green | 32-pin VQFN (5x5 mm, exposed pad) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant (GREEN package) | Compliant |
| Flash Endurance | 10,000 write/erase cycles (per datasheet family specification) | — |
| Maximum Clock Speed | — | 20 MHz |
| Instruction Throughput | — | 20 MIPS |
| Flash Program Memory | — | 32 KB (16 K x 16) |
| Operating Voltage Range | — | 1.8 V to 5.5 V |
| General-Purpose I/O | — | 23 lines |
| On-chip Oscillator | — | Internal 8 MHz calibrated, 128 kHz |
| Programming Interface | — | ISP, debugWIRE, TPI |