ATMEGA48PB-MU vs ATMEGA48PA-MU Comparison
Detailed side-by-side comparison of ATMEGA48PB-MU by Microchip Technology and ATMEGA48PA-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
ATMEGA48PA-MU - 4KB AVR MCU 20MHz picoPower | Microchip
ATMEGA48PA-MU β ActiveSpecification Comparison
| Parameter | ATMEGA48PB-MU | ATMEGA48PA-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.94 | $1.08 |
| Core Architecture | AVR 8-bit RISC | AVR 8-bit RISC |
| Program Memory (Flash) | 4 KB (2K x 16) | β |
| EEPROM | 256 B | 256 B |
| SRAM | 512 B | 512 B |
| Maximum CPU Frequency | 20 MHz | β |
| Supply Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V (picoPower) |
| General Purpose I/O | 27 lines | 23 lines |
| ADC Resolution | 10-bit, 8 channels | β |
| Timers/Counters | 3 (with compare modes) | 2 x 8-bit, 1 x 16-bit with compare modes |
| Communication Interfaces | USART, SPI, Two-Wire Interface (I2C-compatible) | USART, SPI, Two-Wire Interface (I2C) |
| Low Power Technology | picoPower | β |
| Operating Temperature | -40 C to +85 C | -40C to +85C (industrial) |
| Package | 32-VFQFN (5x5 mm) | 32-pin VQFN (5x5 mm, 0.5 mm pitch), green |
| Mounting Type | Surface Mount | Surface Mount |
| Working Registers | 32 x 8-bit | 32 x 8-bit |
| 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) |
| Flash Memory | β | 4 KB (2K x 16) ISP Flash |
| Maximum Clock Frequency | β | 20 MHz |
| ADC | β | 10-bit, 8 single-ended channels, differential with programmable gain |
| Sleep Modes | β | 6 modes incl. power-down at 0.1 uA (picoPower) |
| Internal Oscillator | β | Calibrated RC oscillator (8 MHz nominal, divided options) |
| Brown-out Detector | β | Yes, on-chip |
| Flash Endurance | β | 10,000 write/erase cycles (per datasheet family specification) |