ATMEGA644PA-PU vs ATMEGA324PA-PN Comparison
Detailed side-by-side comparison of ATMEGA644PA-PU by Microchip Technology and ATMEGA324PA-PN 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
ATMEGA644PA-PU - 8-bit AVR MCU 20MHz 64KB Flash DIP-40 | Microchip
ATMEGA644PA-PU ✓ ActiveMicrochip Technology
ATMEGA324PA-PN - 8-Bit AVR MCU 20MHz 32KB Flash DIP-40 | Microchip
ATMEGA324PA-PN ✓ ActiveSpecification Comparison
| Parameter | ATMEGA644PA-PU | ATMEGA324PA-PN |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.15 | $2.66 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Core Series | AVR ATmega | AVR ATmega (picoPower) |
| Maximum Clock Frequency | 20 MHz | — |
| Flash Memory | 64 KB (32K x 16) | — |
| SRAM | 4 KB | 2 KB |
| EEPROM | 2 KB | 1 KB |
| General Purpose I/O Lines | 32 | — |
| Working Registers | 32 | 32 x 8-bit general purpose |
| ADC | 8-channel, 10-bit | — |
| USART Interfaces | 2 | — |
| Two-Wire Interface | Yes (byte-oriented, I2C-compatible) | — |
| Timer/Counters | 3, with compare modes and PWM | — |
| Low Power Technology | picoPower | — |
| Package | 40-PDIP (0.600 in, 15.24 mm) | 40-PDIP, 0.600 in (15.24 mm) width |
| Mounting Type | Through Hole | Through-Hole |
| Operating Voltage Range | [DATA_NEEDED: operating voltage range] | — |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | — |
| Max CPU Frequency | — | 20 MHz |
| Program Memory (Flash) | — | 32 KB (16K x 16), ISP, read-while-write |
| General Purpose I/O | — | 32 lines |
| Communication Interfaces | — | I2C (TWI), SPI, UART/USART |
| Operating Supply Voltage | — | 2.5 V / 3.3 V / 5 V |
| Operating Temperature | — | up to +105 C (PN grade) |
| Packaging | — | Tube |
| RoHS / Green Status | — | Green (RoHS compliant per Microchip listing) |
| Data Program Memory Size | — | 32KB FLASH, 1KB EE, 2KB RAM |
| Supplier Device Package | — | 40-DIP |