ATMEGA324PB-MN vs ATMEGA324PA-MCHR Comparison
Detailed side-by-side comparison of ATMEGA324PB-MN by Microchip Technology and ATMEGA324PA-MCHR 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
ATMEGA324PB-MN - 8-bit AVR MCU 20MHz 32KB Flash | Microchip
ATMEGA324PB-MN ✓ ActiveMicrochip Technology
ATMEGA324PA-MCHR - 8-bit AVR MCU 32KB Flash 20MHz | Microchip
ATMEGA324PA-MCHR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA324PB-MN | ATMEGA324PA-MCHR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Processor | AVR | AVR |
| Core Size | 8-Bit | 8-Bit |
| Speed | 20 MHz | 20 MHz |
| Flash Memory | 32 KB (16K x 16) | — |
| EEPROM | 1 KB | — |
| SRAM | 2 KB | — |
| GPIO Count | 39 | — |
| Timer/Counters | 5 | — |
| Supply Voltage Range | 1.8 V to 5.5 V | — |
| Package | 44-VQFN (7x7 mm) Exposed Pad | 44-QFN (5x5 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | -40C to +85C (industrial) |
| USART Peripherals | Multiple USARTs (PB variant adds 2 vs PA) | — |
| Touch Controller | QTouch PTC, 32 self-cap / 256 mutual-cap buttons | — |
| Connectivity | SPI, I2C (TWI), USART | — |
| Functional Safety | FuSa capable | — |
| Technology | picoPower low-power technology | — |
| Flash Memory Size | — | 32 KB (16K x 16) |
| EEPROM Size | — | 1 KB |
| SRAM Size | — | 2 KB |
| Number of I/O | — | 32 |
| General Purpose Registers | — | 32 |
| Supply Voltage | — | 2.5 V / 3.3 V / 5 V |
| Instructions | — | 131 instructions, most single-cycle execution |
| MIPS per MHz | — | Up to 1 MIPS/MHz |
| Programming | — | ICSP in-system programmable Flash with read-while-write |
| Low Power Technology | — | picoPower |
| Debug / Scan | — | JTAG (on-chip debug and boundary scan) |
| Life Cycle Stage | — | ACTIVE |