ATMEGA48-20MJ vs ATMEGA328P-MU Comparison
Detailed side-by-side comparison of ATMEGA48-20MJ 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.
Microchip Technology
ATMEGA48-20MJ - 8-bit AVR MCU 20MHz 4KB Flash VQFN-32 | Microchip
ATMEGA48-20MJ β Active
Specification Comparison
| Parameter | ATMEGA48-20MJ | ATMEGA328P-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Nrnd |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.00 | $1.28 |
| Core Architecture | 8-bit AVR RISC | β |
| Maximum Clock Frequency | 20 MHz | β |
| Peak Throughput | 20 MIPS at 20 MHz | β |
| Flash Program Memory | 4 KB (2K x 16) | β |
| SRAM | 512 bytes | β |
| EEPROM | 256 bytes | β |
| Instructions | 131 instructions, most single-cycle | β |
| ADC Resolution | 10-bit | 10-bit |
| ADC Channels | 8-channel | 8 (6 external + 2 multiplexed) |
| Supply Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C |
| Package | 32-VQFN / MLF (5x5 mm), pad designation J | 32-VQFN (5x5 mm) |
| Timers | 2 x 8-bit, 1 x 16-bit | 2 x 8-bit, 1 x 16-bit |
| PWM Channels | 6 | β |
| Communication Interfaces | USART, SPI, 2-wire serial (I2C-compatible) | USART, SPI, I2C (TWI) |
| On-Chip Debug | debugWIRE | β |
| Sleep Modes | Idle, ADC Noise Reduction, Power-save, Power-down, Standby | β |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant (green package) | β |
| Core Processor | β | AVR 8-bit RISC |
| Core Size | β | 8-bit |
| Speed | β | 20 MHz |
| Program Memory Size | β | 32 KB (16K x 16) Flash |
| EEPROM Size | β | 1 KB |
| RAM Size | β | 2 KB |
| Number of I/O | β | 23 |
| Peripherals | β | Brown-out Detect/Reset, POR, PWM, WDT |
| Programming | β | ISP, debugWIRE |
| Oscillator Type | β | Internal |